ERDDAP > info > ACG_VOCALS_RHBrown_main

Grid DAP Data	Sub- set	Table DAP Data	Make A Graph	W M S	Source Data Files	Title	Sum- mary	FGDC, ISO, Metadata	Back- ground Info	RSS	E mail	Institution	Dataset ID
	set	data	graph		files	PMEL Atmospheric Chemistry VOCALS Aerosol Main Data, 1 min data		F   I   M	background			NOAA	ACG_VOCALS_RHBrown_main

The Dataset's Variables and Attributes

Row Type	Variable Name	Attribute Name	Data Type	Value
attribute	NC_GLOBAL	cdm_data_type	String	Trajectory
attribute	NC_GLOBAL	cdm_trajectory_variables	String	trajectory_id
attribute	NC_GLOBAL	comment	String	Navigation and Meteorological Measurements Ship Position (Latitude and Longitude): In the one minute files the position is treated somewhat differently from all the other data. The position given is the ship's position at the start of the one minute 'averaging' period. All other data are a true average. The PMEL GPS was the primary source. The Ship's GPS was used when there were missing data in the PMEL record. Ship Speed, Course and Gyro: The ship's GPS speed in knots (Speed Over Ground) and GPS Course in compass degrees (Course Over Ground) are the one minute averages from the GPS (the PMEL GPS as the primary source, the Ship's GPS was the secondary source). To make the one minute averages the 1-second recorded motion vector was separated into east and north components that were averaged into one minute bins. The one minute components were then combined into the ship Velocity Vector. The GyroCompass in compass degrees is the one minute average heading. The primary source was the PMEL GPS compass (Si-TEX Vector Pro), the ship gyro compass data were used when the primary data were missing. The 1-second data were separated into an east and north component before averaging and then recombined. NOTE: The GPS-Course is the direction the ship is moving. The GyroCompass is the direction the ship's bow is pointing. When the ship is moving at 6 or more knots they generally are the same. Due to water currents, at slow speeds there can be quite a difference between the two. When the ship is stationary, the two are totally unrelated. Relative Wind: The primary source for the relative wind data was the PMEL Vaisala WX520 sonic anemometer, located on the aerosol sampling mast. For periods of missing data, the PSD Sonic anemometer on the ship’s foremast was used. The one second relative wind speed and direction data were separated into orthogonal components of "keel" and "beam". These components were averaged into 1 minute averages, and then recombined to relative wind vectors. Wind speed is reported in meters per second and wind direction is in degrees with -90 being wind approaching the ship on the port beam, 0 degrees being wind approaching the ship directly on the bow, and +90 degrees being wind approaching the ship on the starboard beam. Wind Components/ True Wind Speed/ True Wind Direction: The primary source for the true wind data was the average of the PMEL Vaisala WX520 and WX536 sonic anemometers, both located on the aerosol sampling mast, 17 m above sea level. For periods of missing data the average of the ship’s two WXT sensors, located above the ship’s navigation bridge, were used. True wind speed and direction were calculated from the relative wind taking into account the ship's motion from the GPS and the ship heading from the GPS compass. The true wind vector is given as wind speed in m/s and wind direction in compass degrees (0 degrees meaning wind arriving from the north). The WindU and WindV are the east and north components of the wind vector in m/s. WindU and WindV are positive for wind going in the east and north directions. Atmospheric Temperature One minute averages in degrees C. There were three possible sources, the 2 PMEL rotronics sensors (T1 and T2) and the ship's SCS IMET sensor. The ship's IMET sensor was located on the IMET mast at the bow of the ship, the PMEL sensors were located at the top of the Aero-phys van. The IMET sensor being located at the bow had less warming from the daytime heating of the ship deck, (and the data record did show that IMET was cooler than T1 and T2 during the afternoon, when deck heating was a max). Therefore, the SCS IMET sensor was used as the primary source and for the few times that data were missing from SCS, the PMEL-T1 sensor was used. Relative humidity: There were two PMEL rotronics sensors (RH1, and RH2) and one Ship IMET sensor (on the IMET Bow mast). Due to the daytime deck heating (see air temperatue above) the PMEL sensors showed a "dip" in RH during the afternoon, while the Ship IMET sensor did not. Thus, the Ship IMET sensor was used as the primary sensor and the PMEL RH1 sensor was used as the secondary sensor Barometric Pressure: One minute averages in units of mb. There were two sources of raw data, the PMEL Vaisala sensor and the SCS digital sensor. They both agreed within 0.5 mb. There were less data gaps in the ship SCS sensor it was used as the primary sensor with a few periods filled in with the PMEL sensor. Insolation: One minute averages in units of watts per square meter. Total solar radiation was measured with an Epply black and white pyranometer (horizontal surface receiver -180, model 8-48, serial number 12946) and an Epply precision pyranometer (horizontal surface receiver -180, twin hemispheres, model PSP, serial number 133035F3) that were mounted on the top of Areophys van. Both instruments were calibrated by the Epply Laboratory on October 11, 1994. There were times when the sampling mast shaded one or both sensors. There were also times when the ship's mast/bridge shaded the sensors. The shaded data have not been edited out of the 1 minute data record. The data reported here are from the model 8-48, serial number 12946 radiometer and are in watts per square meter and are the average value over the 1 minute sampling period. Rain Rate (Precipitation): The rain rate, in mm/hr, was measured by the PMEL-Vaisala WX520 and WX536 Met sensors located near the top of the aerosol sampling mast. The average of the two sensors was used. During periods of high wind speed (above about 15 m/s), sea spray causes drops that will impact the rain sensor and register as rain, thus there are periods where rain is recorded when there is no rain falling. We have no way of editing this out of the data record so the measured rain rate at these higher wind speeds is unreliable. Aerosol inlet: Ambient aerosol particles were sampled at 18 m above sea level through a heated mast. The mast extended 5 m above and forward of the aerosol measurement container. The inlet was a rotating cone-shaped nozzle that was automatically positioned into the relative wind to maintain nominally isokinetic flow and minimize the loss of supermicrometer particles. Air entered the inlet through a 5 cm diameter hole, passed through a 7 degree expansion cone, and then into the 20 cm inner diameter sampling mast. The flow through the mast was 1 m3 min-1. The transmission efficiency of the inlet for particles with aerodynamic diameters less than 6.5 um (the largest size tested) is greater than 95% [Bates et al., 2002]. The bottom 1.5 m of the mast were heated to establish a stable reference relative humidity (RH) for the sample air controlled to the indicated target sample RH. Twenty one 1.6 cm inner diameter stainless steel tubes extending into the heated portion of the mast were connected to downstream aerosol instrumentation with either conductive silicon tubing or stainless steel tubing for analysis of organic aerosol. CN and UFCN: One of the twenty one 1.6 cm diameter tubes was used to supply ambient air to TSI 3010 (CN_Direct) and TSI 3025A (UFCN_Direct) particle counters. Another one of tubes was used to supply ambient air to a TSI3785 (UFCN_Chem) particle counter. A separate 1/4" line was used to supply air from the top of the mast directly to a TSI 3760 particle counter. The 3760, 3010, 3025 and 3785 measure all particles larger than roughly 12, 12, 3 and 5 nm respectively. The total particle counts from each instrument were recorded each second. The data were filtered to eliminate periods of calibration and instrument malfunction and zero air periods, and periods of obvious ship contamination (based on relative wind and high CN counts). The "best" filtered values were chosen to represent CN>12 (CN) and ultra-fine (UFCN) particle concentrations. The best CN values are primarily from CN_Direct with data from CN_Stack used to fill in periods where the CN_Direct data were not available. Similarly, the UFCN values are primarily from UFCN_Direct with the UFCN_Chem data used to fill in periods where UFCN_Direct data were not available. Aerosol in-situ Light Scattering and Absorption, Scattering and Absorption angstrom exponents, Single Scatter Albedo, and RH dependence of scattering. A suite of instruments was used to measure aerosol light scattering and absorption. Two TSI integrating nephelometers (Model 3563) measured integrated total scattering at wavelengths of 450, 550, and 700nm (Anderson et al, 1996; Anderson and Ogren, 1998). Sample flow was taken from the AeroPhysics sampling van inlet. One nephelometer (neph_sub10) always measured aerosols of aerodynamic diameter Dae < 10 micrometers; the second nephelometer (neph_sub1) measured only aerosol of aerodynamic diameter Dae < 1.1 micrometer. When possible, both nephelometers were operated at a sensing volume RH approximately that of the indicated target sample RH. This RH was controlled by controlling the temperature of the insulated cabinet that housed the nephelometers. The 10 and 1.1 micrometer cut-offs were made with Berner multi-jet cascade impactors. Two Radiance Research Particle Soot Absorption Photometers were used to measure light absorption by aerosols at 467, 530, and 660nm (Bond et al., 1999; Virkkula et al.,2005) under 'dry' (<25% RH) conditions for sub 10 (psap_sub10) and sub 1 (psap_sub1) micrometer aerosols at the outlet of the respective nephelometers. A separate humidity controlled system measured submicrometric light scattering at two different relative humidities, approximately 25% RH and 85% RH (neph_sub1_lo and neph_sub1_hi) with two TSI integrating 3-wavelength nephelometers operated in series downstream of a Berner impactor. There are no backscattering values available from the _hi or _lo nephelometers as the backscatter shutter mode was set to "total" due to problematic backscatter shutters. The first nephelometer measured scattering of the ~60% conditioned aerosol from the AeroPhysics sampling van inlet at approximately 25% RH after drying of the sample flow using a PermaPure, multiple-tube nafion dryer model PR-94. Downstream of this nephelometer a humidifier was used to add water vapor to the sample flow (6 microporous teflon tubes surrounded by a heatable water-jacket). The sample was conditioned to approximately 80% RH, scattering was measured by the second TSI neph. Humidity was measured by using a chilled mirror dew point hygrometer downstream of the second neph. On the PMEL Data Sever the neph_sub1_lo data are in the SUBSCATloRH file, the neph_sub1_hi data are in the SUBSCAThiRH file. DATA COLLECTION AND PROCESSING Data from both systems were collected and processed at 1 sec resolution but are reported as 60-second averages. Data from each instrument are corrected and adjusted as described below, allowing for derivation of extensive parameters (light scattering and absorption) and intensive parameters (single scatter albedo, Angstrom exponent). Light absorption is box-car averaged by the instrument over a window 10-seconds wide. For all parameters, the bad value code is NaN. Intensive parameters are set to NaN when the extensive properties used in their calculation fell below the measurement noise threshold. Both extensive and intensive properties are set to NaN during certain events, such as during filter changes, instrument calibration, obvious instrument failure etc. Negative values of absorption might occur during periods of absorption signals near or in the range of the instrument noise, and are partly shifted into the negative range due to scattering correction. STP are p_STP=1013.2 hPa, T_STP=273.2 K. DERIVATION OF MEAN VALUES EXTENSIVE PARAMETERS Data from the TSI integrating nephelometers, Neph sub10 and Neph sub1, and f(RH=low) and f(RH=high) are processed as follows: Span gas (air and CO2) calibrations were made before the field campaign using the standard TSI program. During the campaign zero (particle free air at ambient water vapor conc.) and CO2 span checks were made at three to four day intervals. The resulting zero offset and span factors were applied to the data. The TSI nephelometers measure integrated light scattering into 7-170 degrees. To derive total scatter (0-180 degrees) and hemispheric backscatter (90-180 degrees) angular truncation correction factors were applied as recommended by Anderson and Ogren (1998). Total and hemispheric backscatter were adjusted to STP. (NOTE: There are no backscattering values available from the f(RH=low) and f(RH=high) nephelometers as discussed above.) Data from the Radiance Research Particle Soot Absorption Photometers, PSAPs sub1, sub10, and _lo, are processed as follows: Reported values of light absorption are corrected for spot size, flow rate, artifact response to scattering, and error in the manufacturer's calibration, all given by Bond et al. (1999). Except the spot size, all corrections were made after data collection, i.e. they are not integrated into the PSAP firmware. However, the PSAP's were flow-calibrated prior to the campaign, and a flow correction was applied based on routine flow checks during the cruise. Light absorption is adjusted to STP The f(RH) of scattering data is processed as follows: Reported values of light scattering at low RH and high RH were corrected to STP. the exponent describing the f(RH) dependence of scattering was determined using the scattering values of neph_lo_1min (fRH-optics) and neph_hi_1min (fRH-optics) and applying a linear regression of the relationship log(scat_hi/scat_lo) = -gamma*log((1-fracRH_hi)/(1-fracRH_lo)) based on the Kasten & Hanel formula scat_hi=scat_lo(1-fracRH)^(-gamma) [Wang et. al.,2006] The fRH values given on the data server (SUBFRH) are at the measured high and low RH values. The gamma factor calculated from the equation above is available upon request. INTENSIVE PARAMETERS The Angstrom exponent for scattering at (450,550,700nm), A_Blue = -log(Bs/Gs)/log(450/550) A_Green = -log(Bs/Rs)/log(450/700) A_Red = -log(Gs/Rs)/log(550/700) where Bs, Gs and Rs are light scattering values that apply to 450, 550 and 700 nm, respectively and where these values have been smoothed by averaging over a 30-sec wide window. The Angstrom exponent for absorption at (467,530,660nm), A_Blue = -log(Ba/Ga)/log(467/530) A_Green = -log(Bs/Rs)/log(467/660) A_Red = -log(Gs/Rs)/log(530/660) where Ba, Ga and Ra are light absorption values that apply to 467, 530 and 660 nm, respectively and where these values have been smoothed by averaging over a 30-sec wide window. The single scatter albedo of the sub-micron aerosol was calculated as follows: SSA = Neph1_scat / (Neph1_scat + PSAP1_abs) where light absorption values and scattering have been averaged over 60 seconds. SSA is given for 532nm, i.e. the nephelometer data was wavelength-shifted to match the PSAP wavelength using the nephelometer based Angstrom exponent. The sub 1 micron and sub 10 micron Scattering Angstrom exponents can be found on the PMEL Data Server in the SUBSCATANG and TOTSCATANG files. The sub 1 micron and sub 10 micron Absorption Angstrom exponents can be found in the SUBABSANG and TOTABSANG files. The sub 1 micron and sub 10 micron single scatter albedo values can be found in the SUBSSA and TOTSSA files. REFERENCES Anderson, T.L., D.S. Covert, S.F. Marshall, M. L. Laucks, R.J. Charlson, A.P. Waggoner, J.A. Ogren, R. Caldow, R. Holm, F. Quant, G. Sem, A. Wiedensohler, N.A. Ahlquist, and T.S. Bates, "Performance characteristics of a high-sensitivity, three-wavelength, total scatter/backscatter nephelometer", J. Atmos. Oceanic Technol., 13, 967-986, 1996. Anderson, T.L., and J.A. Ogren, "Determining aerosol radiative properties using the TSI 3563 integrating nephelometer", Aerosol Sci. Technol., 29, 57-69, 1998. Bond, T.C., T.L. Anderson, and D. Campbell, "Calibration and intercomparison of filter-based measurements of visible light absorption by aerosols", Aerosol Sci. and Tech., 30, 582-600, 1999. A. Virkkula, N. C. Ahquist, D. S. Covert, P. J. Sheridan, W. P. Arnott, J. A Ogren,"A three-wavelength optical extinction cell for measuring aerosol light extinction and its application to determining absorption coefficient", Aero. Sci. and Tech., 39,52-67, 2005 A. Virkkula, N. C. Ahquist, D. S. Covert, W. P. Arnott, P. J. Sheridan, P. K. Quinn,D. J. Coffman, "Modification, calibration and a field test of an instrument for measuring light absorption by particles", Aero. Sci. and Tech., 39, 68-83, 2005 Wang et. al, Aerosol optical properties over the Northwestern Atlantic Ocean during NEAQS-ITCT 2004, and the influence of particulate matter on aerosol hygroscopicity, submitted to J. Geo. Phys. Res., 2006 Chemistry Data, Aerosol Mass Spectrometer (Q-AMS): Concentrations of submicrometer NH4+, SO4=, NO3-, and POM were measured with a Quadrupole Aerosol Mass Spectrometer (Q-AMS) (Aerodyne Research Inc., Billerica, MA, USA) [Jayne et al., 2000; Allan et al., 2003]. The species measured by the AMS are referred to as non-refractory (NR) and are defined as all chemical components that vaporize at the vaporizer temperature (600°C). This includes most organic carbon species and inorganic species such as ammonium nitrate and ammonium sulfate salts but not mineral dust, elemental carbon, or sea salt. However, with the high concentrations of sea salt in the Sea Sweep samples, Na35Cl, Na37Cl, and various halide clusters were detected in the Q-AMS. The ionization efficiency of the AMS was calibrated every few days with dry monodisperse NH4NO3 particles using the procedure described by Jimenez et al. [2003]. The instrument operated on a 5 min cycle with the standard AMS aerodynamic lens. The aerodynamic particle beam forming lens on the front end of the AMS efficiently samples particles with aerodynamic diameters between 60 and 600 nm [Jayne et al., 2000]. For ambient atmospheric samples, this size range generally captures the accumulation mode aerosol and thus is readily comparable to impactor samples of submicrometer aerosol. This is not the case for sea spray particles where the dominant mass mode tails into the submicrometer size range. Version 0 data have a "Collection Efficiency" (CE) of 1.0 applied to the four “standard” AMS measurements of sulfate, nitrate, ammonium, and organic mass, during ambient aerosol sampling periods. The CE was based on simultaneous collection of filters for ion chromatography as reference standards during ambient aerosol sampling. A CE of 1.0 was used for Sea Sweep sampling periods assuming the POM was fully recovered and the SO4= and Sea Salt concentrations were dependent on the vaporizer temperature. The NH4+ and NO3- data were below the detection limit during Sea Sweep sampling. The detection limits from individual species were determined by analyzing periods in which ambient filtered air was sampled and are calculated as two times the standard deviation of the reported mass concentration during those periods. The detection limits during WACS2 were 0.04, 0.24, 0.02, and 0.25 ug/m3 for sulfate, ammonium, nitrate, and POM, respectively. Samples below these detection limits are listed as 0 in the ACF file and -8888 in the ICARTT and .itx format file. Missing data are listed as -9999 in the .acf and .ict files and NaN in the .itx file. Jayne, J.T., D.C. Leard, X. Zhang, P. Davidovits, K.A. Smith, C.E. Kolb, and D.R. Worsnop, Development of an aerosol mass spectrometer for size and composition analysis of submicron particles, Aersol Sci. Technol., 33, 49-70, 2000. Allan, J.D., J.L. Jimenez, P.I. Williams, M.R. Alfarra, K.N. Bower, J.T. Jayne, H. Coe, and D.R. Worsnop, Quantitative sampling using an Aerodyne aerosol mass spectrometer. Part 1: Techniques of data interpretation and error analysis, J. Geophys. Res., 108(D3), 4090, doi:10.1029/2002JD002358, 2003. Ozone Air was pulled from 16 m above sea level through a 1/4 inch teflon line at approximately 1 liter min-1 into a Thermo Environmental Instruments Model 49c ozone analyzer. The air inlet was approximately 2 meters below the aerosol inlet. During periods when the relative wind was behind the beam, there were obvious periods when ship exhaust was reacting with ozone, resulting in sudden spikes of low ozone. These spikes of low ozone have been edited out. The data are reported as one minute averages in units of ppb. PMEL SO2 Inlet and Instrument Air was pulled from 18 m above sea level down the 20 cm ID powder-coated aluminum aerosol sampling mast (6 m) at approximately 1 m3min-1. At the base of the sampling mast a 2.8 Lmin-1 flow was pulled through a 0.32 cm ID, 1m long Teflon tube, a Millipore Fluoropore filter (1.0-um pore size) housed in a Teflon filter holder, a Perma Pure Inc. Nafion Drier (MD-070, stainless steel, 61 cm long) and then through 2 m of Telfon tubing to the Thermo Environmental Instruments Model 43C Trace Level Pulsed Fluorescence Analyzer. The initial 1 m of tubing, filter and drier we located in the humidity controlled (60%) chamber at the base of the mast. Dry zero air (scrubbed with a charcoal trap) was run through the outside of the Nafion Drier at 2 Lmin-1. Data were recorded in 10 second averages. The data have not been filtered for periods when ship exhaust entered the mast. Standardization: Zero air was introduced into the sample line upstream of the Fluoropore filter periodically throughout the cruise to establish a zero baseline. An SO2 standard was generated with a permeation tube held at 40ºC. The flow over the permeation tube, diluted to 4.6 ppb, was introduced into the sample line upstream of the Fluoropore filter periodically throughout the cruise. The limit of detection for 1 min averaged data, defined as 2 times the standard deviation of the signal during the zero periods, was 150 ppt. Data below detection limit are listed as 0and missing data are listed as NaN. Uncertainties in the concentrations based on the permeation tube weight and dilution flows are <5%. Seawater Measurements Sea Surface Temperature and Salinity: Sea Surface Temperature (SST) in degrees C is from the ship’s Hull Probe, Salinity in PSU is from the ship's SeaBird thermosalinograph. The temperature probe and water inlet for the thermosalinograph were located 5.3 meters below the water line. The underway chlorophyll data are from the ship’s Seapoint fluorometer.
attribute	NC_GLOBAL	contributor_name	String	Coffman, Derek/NOAA-PMEL/Address: 7600 Sand Pt. Wy. NE,Seattle,WA 98115 /email: derek.coffman@noaa.gov
attribute	NC_GLOBAL	Conventions	String	COARDS, CF-1.6, ACDD-1.3, NCCSV-1.0
attribute	NC_GLOBAL	creator_email	String	derek.coffman at noaa.gov
attribute	NC_GLOBAL	creator_name	String	Coffman, Derek
attribute	NC_GLOBAL	creator_url	String	https://www.pmel.noaa.gov/
attribute	NC_GLOBAL	dimensions	String	time=59940
attribute	NC_GLOBAL	Easternmost_Easting	double	-70.16197
attribute	NC_GLOBAL	featureType	String	Trajectory
attribute	NC_GLOBAL	geospatial_lat_max	double	1.3708
attribute	NC_GLOBAL	geospatial_lat_min	double	-21.53479
attribute	NC_GLOBAL	geospatial_lat_units	String	degrees_north
attribute	NC_GLOBAL	geospatial_lon_max	double	-70.16197
attribute	NC_GLOBAL	geospatial_lon_min	double	-85.9033
attribute	NC_GLOBAL	geospatial_lon_units	String	degrees_east
attribute	NC_GLOBAL	geospatial_vertical_max	double	18.0
attribute	NC_GLOBAL	geospatial_vertical_min	double	18.0
attribute	NC_GLOBAL	geospatial_vertical_positive	String	up
attribute	NC_GLOBAL	geospatial_vertical_units	String	m
attribute	NC_GLOBAL	infoUrl	String	https://www.pmel.noaa.gov/acg/data/index.html
attribute	NC_GLOBAL	institution	String	NOAA
attribute	NC_GLOBAL	keywords	String	above, absorb_467_sub1, absorb_467_sub10, absorb_530_sub1, absorb_530_sub10, absorb_660_sub1, absorb_660_sub10, absorb_angstrom_467_530_sub1, absorb_angstrom_467_660_sub1, absorb_angstrom_530_660_sub1, absorption, aerosol, aerosols, air, air_pressure, air_temp, air_temperature, albedo, altitude, ambient, angstrom, angstrom_exponent_of_ambient_aerosol_in_air, atmosphere, atmospheric, backscatter_450_sub1, backscatter_450_sub10, backscatter_550_sub1, backscatter_550_sub10, backscatter_700_sub1, backscatter_700_sub10, backscattering, baro_pressure, barometric, chemistry, coefficient, component, compounds, concentration, contaminants, course, data, datetime, density, dependence, depth, diffuse, diffuse_downwelling_shortwave_flux_in_air, direction, downwelling, dried, due, duration, earth, Earth Science > Atmosphere > Aerosols > Aerosol Optical Depth/Thickness > Angstrom Exponent, Earth Science > Atmosphere > Aerosols > Aerosol Particle Properties, Earth Science > Atmosphere > Aerosols > Particulate Matter, Earth Science > Atmosphere > Air Quality > Tropospheric Ozone, Earth Science > Atmosphere > Altitude > Station Height, Earth Science > Atmosphere > Atmospheric Chemistry > Oxygen Compounds, Earth Science > Atmosphere > Atmospheric Chemistry > Oxygen Compounds > Ozone, Earth Science > Atmosphere > Atmospheric Pressure > Atmospheric Pressure Measurements, Earth Science > Atmosphere > Atmospheric Pressure > Sea Level Pressure, Earth Science > Atmosphere > Atmospheric Pressure > Static Pressure, Earth Science > Atmosphere > Atmospheric Radiation > Shortwave Radiation, Earth Science > Atmosphere > Atmospheric Temperature > Air Temperature, Earth Science > Atmosphere > Atmospheric Temperature > Surface Air Temperature, Earth Science > Atmosphere > Atmospheric Water Vapor > Humidity, Earth Science > Atmosphere > Atmospheric Winds > Surface Winds, Earth Science > Oceans > Ocean Temperature > Sea Surface Temperature, Earth Science > Oceans > Salinity/Density > Salinity, east, eastward, eastward_wind, environmental, exponent, flux, fraction, frh, ground, heading, heat, heat flux, height, humidity, identifier, insolation, laboratory, latitude, level, light, longitude, main, marine, matter, mean, measurements, meteorology, min, mixing, mm-1, mole, mole_fraction_of_ozone_in_air, noaa, north, northward, northward_wind, number, number_concentration_of_aerosol_particles_at_stp_in_air, O2, ocean, oceans, optical, optical properties, orientation, over, oxygen, ozone, pacific, pair, particle, particles, particulate, percent, platform, platform_course, platform_orientation, platform_speed_wrt_ground, pmel, practical, pressure, properties, quality, radiation, radiative, ratio, relative, relative_humidity, relative_wind_direction, relative_wind_speed, salinity, sample, scatter_450_sub1, scatter_450_sub10, scatter_550_sub1, scatter_550_sub10, scatter_700_sub1, scatter_700_sub10, scatter_angstrom_450_550_sub1, scatter_angstrom_450_700_sub1, scatter_angstrom_550_700_sub1, scatter_frh_450_sub1, scatter_frh_550_sub1, scatter_frh_700_sub1, scatter_rh_sub10, scattering, science, sea, sea_surface_temperature, sea_water_practical_salinity, seawater, ship, ship_course, ship_heading, ship_speed, shortwave, single, single_scattering_albedo_in_air_due_to_ambient_aerosol_particles, so2, speed, ssa_467_sub1, ssa_530_sub1, ssa_660_sub1, static, station, statistics, stp, surface, temperature, thickness, time, trajectory, trajectory_id, tropospheric, ufcn, ultrafine, vapor, vocals, volume, volume_absorption_coefficient_in_air_due_to_dried_aerosol_particles, volume_scattering_coefficient_of_radiative_flux_in_air_due_to_ambient_aerosol_particles, water, wavelength, wind, wind_direction, wind_from_direction, wind_speed, wind_u, wind_v, winds, wrt
attribute	NC_GLOBAL	keywords_vocabulary	String	GCMD Science Keywords
attribute	NC_GLOBAL	license	String	These data were produced by NOAA and are not subject to copyright protection in the United States. NOAA waives any potential copyright and related rights in these data worldwide through the Creative Commons Zero 1.0 Universal Public Domain Dedication (CC0-1.0).
attribute	NC_GLOBAL	Northernmost_Northing	double	1.3708
attribute	NC_GLOBAL	platform	String	RHBrown
attribute	NC_GLOBAL	product_version	String	0
attribute	NC_GLOBAL	project	String	VOCALS
attribute	NC_GLOBAL	sourceUrl	String	(local files)
attribute	NC_GLOBAL	Southernmost_Northing	double	-21.53479
attribute	NC_GLOBAL	standard_name_vocabulary	String	CF Standard Name Table v70
attribute	NC_GLOBAL	subsetVariables	String	trajectory_id, duration, altitude, backscatter_450_sub1, backscatter_550_sub1, backscatter_700_sub1
attribute	NC_GLOBAL	summary	String	Pacific Marine Environmental Laboratory (PMEL) Atmospheric Chemistry VOCALS Aerosol Main Data - 1 min data. The VAMOS Ocean-Cloud-Atmosphere-Land Study - Regional Experiment (VOCALS-REx) is an international field experiment designed to better understand physical and chemical processes central to the climate system of the Southeast Pacific (SEP) region. The climate of the SEP region is a tightly coupled system involving poorly understood interactions between the ocean, the atmosphere, and the land. VOCALS-REx will focus on interactions between clouds, aerosols, marine boundary layer (MBL) processes, upper ocean dynamics and thermodynamics, coastal currents and upwelling, large-scale subsidence, and regional diurnal circulations, to the west of the Andes mountain range. The field experiment is ultimately driven by a need for improved model simulations of the coupled climate system in both the SEP and over the wider tropics and subtropics.
attribute	NC_GLOBAL	time_coverage_end	String	2008-11-30T23:59:00Z
attribute	NC_GLOBAL	time_coverage_start	String	2008-10-20T09:00:00Z
attribute	NC_GLOBAL	title	String	PMEL Atmospheric Chemistry VOCALS Aerosol Main Data, 1 min data
attribute	NC_GLOBAL	Westernmost_Easting	double	-85.9033
variable	time		double
attribute	time	_CoordinateAxisType	String	Time
attribute	time	actual_range	double	1.2244932E9, 1.22808954E9
attribute	time	axis	String	T
attribute	time	comment	String	Start of sampling period
attribute	time	coords	String	time
attribute	time	ioos_category	String	Time
attribute	time	long_name	String	Datetime UTC
attribute	time	source_name	String	datetime_utc
attribute	time	standard_name	String	time
attribute	time	time_origin	String	01-JAN-1970 00:00:00
attribute	time	time_precision	String	1970-01-01T00:00:00Z
attribute	time	units	String	seconds since 1970-01-01T00:00:00Z
variable	trajectory_id		String
attribute	trajectory_id	cf_role	String	trajectory_id
attribute	trajectory_id	coords	String	time
attribute	trajectory_id	ioos_category	String	Identifier
attribute	trajectory_id	long_name	String	Trajectory ID
variable	duration		int
attribute	duration	_FillValue	int	2147483647
attribute	duration	actual_range	int	60, 60
attribute	duration	coords	String	time
attribute	duration	ioos_category	String	Time
attribute	duration	long_name	String	Duration
attribute	duration	units	String	second
variable	latitude		double
attribute	latitude	_CoordinateAxisType	String	Lat
attribute	latitude	actual_range	double	-21.53479, 1.3708
attribute	latitude	axis	String	Y
attribute	latitude	colorBarMaximum	double	90.0
attribute	latitude	colorBarMinimum	double	-90.0
attribute	latitude	coords	String	time
attribute	latitude	instrument	String	GPS
attribute	latitude	ioos_category	String	Location
attribute	latitude	long_name	String	Latitude
attribute	latitude	source	String	surface observation
attribute	latitude	standard_name	String	latitude
attribute	latitude	units	String	degrees_north
attribute	latitude	valid_max	double	90.0
attribute	latitude	valid_min	double	-90.0
variable	longitude		double
attribute	longitude	_CoordinateAxisType	String	Lon
attribute	longitude	actual_range	double	-85.9033, -70.16197
attribute	longitude	axis	String	X
attribute	longitude	colorBarMaximum	double	180.0
attribute	longitude	colorBarMinimum	double	-180.0
attribute	longitude	coords	String	time
attribute	longitude	instrument	String	GPS
attribute	longitude	ioos_category	String	Location
attribute	longitude	long_name	String	Longitude
attribute	longitude	source	String	surface observation
attribute	longitude	standard_name	String	longitude
attribute	longitude	units	String	degrees_east
attribute	longitude	valid_max	double	180.0
attribute	longitude	valid_min	double	-180.0
variable	altitude		double
attribute	altitude	_CoordinateAxisType	String	Height
attribute	altitude	_CoordinateZisPositive	String	up
attribute	altitude	actual_range	double	18.0, 18.0
attribute	altitude	axis	String	Z
attribute	altitude	colorBarMinimum	double	0.0
attribute	altitude	coords	String	time
attribute	altitude	ioos_category	String	Location
attribute	altitude	long_name	String	height above mean sea level
attribute	altitude	positive	String	up
attribute	altitude	standard_name	String	altitude
attribute	altitude	units	String	m
attribute	altitude	valid_min	double	0.0
variable	ship_speed		double
attribute	ship_speed	actual_range	double	0.0, 13.0
attribute	ship_speed	colorBarMaximum	double	25.0
attribute	ship_speed	colorBarMinimum	double	0.0
attribute	ship_speed	coords	String	time
attribute	ship_speed	instrument	String	GPS
attribute	ship_speed	ioos_category	String	Unknown
attribute	ship_speed	long_name	String	Ship Speed over Ground
attribute	ship_speed	source	String	surface observation
attribute	ship_speed	standard_name	String	platform_speed_wrt_ground
attribute	ship_speed	units	String	knots
attribute	ship_speed	valid_max	double	20.0
attribute	ship_speed	valid_min	double	0.0
variable	ship_course		double
attribute	ship_course	actual_range	double	0.0, 359.5
attribute	ship_course	colorBarMaximum	double	400.0
attribute	ship_course	colorBarMinimum	double	0.0
attribute	ship_course	coords	String	time
attribute	ship_course	instrument	String	GPS
attribute	ship_course	ioos_category	String	Unknown
attribute	ship_course	long_name	String	Ship Course over Ground
attribute	ship_course	source	String	surface observation
attribute	ship_course	standard_name	String	platform_course
attribute	ship_course	units	String	degree
attribute	ship_course	valid_max	double	360.0
attribute	ship_course	valid_min	double	0.0
variable	ship_heading		double
attribute	ship_heading	actual_range	double	0.0, 359.9
attribute	ship_heading	colorBarMaximum	double	400.0
attribute	ship_heading	colorBarMinimum	double	0.0
attribute	ship_heading	coords	String	time
attribute	ship_heading	instrument	String	GPS Compass and Ship Gyrocompass
attribute	ship_heading	ioos_category	String	Unknown
attribute	ship_heading	long_name	String	Ship Heading
attribute	ship_heading	source	String	surface observation
attribute	ship_heading	standard_name	String	platform_orientation
attribute	ship_heading	units	String	degree
attribute	ship_heading	valid_max	double	360.0
attribute	ship_heading	valid_min	double	0.0
variable	air_temp		double
attribute	air_temp	_FillValue	double	NaN
attribute	air_temp	actual_range	double	15.55, 25.2
attribute	air_temp	colorBarMaximum	double	40.0
attribute	air_temp	colorBarMinimum	double	-10.0
attribute	air_temp	coords	String	time
attribute	air_temp	instrument	String	Ship and PMEL sensor
attribute	air_temp	ioos_category	String	Temperature
attribute	air_temp	long_name	String	Air Temperature
attribute	air_temp	source	String	surface observation
attribute	air_temp	standard_name	String	air_temperature
attribute	air_temp	units	String	degree_C
attribute	air_temp	valid_max	double	50.0
attribute	air_temp	valid_min	double	-20.0
variable	rh		double
attribute	rh	_FillValue	double	NaN
attribute	rh	actual_range	double	51.09, 99.01
attribute	rh	colorBarMaximum	double	100.0
attribute	rh	colorBarMinimum	double	0.0
attribute	rh	coords	String	time
attribute	rh	instrument	String	Ship and PMEL Sensors
attribute	rh	ioos_category	String	Meteorology
attribute	rh	long_name	String	Relative Humidity
attribute	rh	source	String	surface observation
attribute	rh	standard_name	String	relative_humidity
attribute	rh	units	String	percent
attribute	rh	valid_max	double	110.0
attribute	rh	valid_min	double	0.0
variable	baro_pressure		double
attribute	baro_pressure	_FillValue	double	NaN
attribute	baro_pressure	actual_range	double	1010.53, 1022.68
attribute	baro_pressure	colorBarMaximum	double	1050.0
attribute	baro_pressure	colorBarMinimum	double	950.0
attribute	baro_pressure	coords	String	time
attribute	baro_pressure	instrument	String	SHIP and PMEL sensors
attribute	baro_pressure	ioos_category	String	Pressure
attribute	baro_pressure	long_name	String	Barometric Pressure
attribute	baro_pressure	source	String	surface observation
attribute	baro_pressure	standard_name	String	air_pressure
attribute	baro_pressure	units	String	hPa
attribute	baro_pressure	valid_max	double	1050.0
attribute	baro_pressure	valid_min	double	950.0
variable	insolation		double
attribute	insolation	_FillValue	double	NaN
attribute	insolation	actual_range	double	7.4, 1482.1
attribute	insolation	colorBarMaximum	double	10.0
attribute	insolation	colorBarMinimum	double	-10.0
attribute	insolation	coords	String	time
attribute	insolation	instrument	String	Epply radiometer 8-48
attribute	insolation	ioos_category	String	Heat Flux
attribute	insolation	long_name	String	Shortwave Flux
attribute	insolation	source	String	surface observation
attribute	insolation	standard_name	String	diffuse_downwelling_shortwave_flux_in_air
attribute	insolation	units	String	W m-2
attribute	insolation	valid_max	double	1500.0
attribute	insolation	valid_min	double	-10.0
variable	wind_speed		double
attribute	wind_speed	_FillValue	double	NaN
attribute	wind_speed	actual_range	double	0.0, 17.55
attribute	wind_speed	colorBarMaximum	double	15.0
attribute	wind_speed	colorBarMinimum	double	0.0
attribute	wind_speed	coords	String	time
attribute	wind_speed	instrument	String	Ship SSSSG IMET wind
attribute	wind_speed	ioos_category	String	Wind
attribute	wind_speed	long_name	String	Wind Speed
attribute	wind_speed	source	String	surface observation
attribute	wind_speed	standard_name	String	wind_speed
attribute	wind_speed	units	String	m s-1
attribute	wind_speed	valid_max	double	50.0
attribute	wind_speed	valid_min	double	0.0
variable	wind_direction		double
attribute	wind_direction	_FillValue	double	NaN
attribute	wind_direction	actual_range	double	0.0, 359.9
attribute	wind_direction	colorBarMaximum	double	360.0
attribute	wind_direction	colorBarMinimum	double	0.0
attribute	wind_direction	coords	String	time
attribute	wind_direction	instrument	String	Ship SSSSG IMET wind
attribute	wind_direction	ioos_category	String	Wind
attribute	wind_direction	long_name	String	Wind Direction
attribute	wind_direction	source	String	surface observation
attribute	wind_direction	standard_name	String	wind_from_direction
attribute	wind_direction	units	String	degree
attribute	wind_direction	valid_max	double	360.0
attribute	wind_direction	valid_min	double	0.0
variable	wind_u		double
attribute	wind_u	_FillValue	double	NaN
attribute	wind_u	actual_range	double	-11.64, 5.78
attribute	wind_u	colorBarMaximum	double	15.0
attribute	wind_u	colorBarMinimum	double	-15.0
attribute	wind_u	coords	String	time
attribute	wind_u	instrument	String	Wind to East: Ship SSSSG IMET wind
attribute	wind_u	ioos_category	String	Wind
attribute	wind_u	long_name	String	east component of the wind
attribute	wind_u	source	String	surface observation
attribute	wind_u	standard_name	String	eastward_wind
attribute	wind_u	units	String	m s-1
attribute	wind_u	valid_max	double	50.0
attribute	wind_u	valid_min	double	0.0
variable	wind_v		double
attribute	wind_v	_FillValue	double	NaN
attribute	wind_v	actual_range	double	-7.54, 15.86
attribute	wind_v	colorBarMaximum	double	15.0
attribute	wind_v	colorBarMinimum	double	-15.0
attribute	wind_v	coords	String	time
attribute	wind_v	instrument	String	Wind to North: Ship SSSG IMET wind
attribute	wind_v	ioos_category	String	Wind
attribute	wind_v	long_name	String	north component of the wind
attribute	wind_v	source	String	surface observation
attribute	wind_v	standard_name	String	northward_wind
attribute	wind_v	units	String	m s-1
attribute	wind_v	valid_max	double	50.0
attribute	wind_v	valid_min	double	0.0
variable	relative_wind_speed		double
attribute	relative_wind_speed	_FillValue	double	NaN
attribute	relative_wind_speed	actual_range	double	0.0, 20.87
attribute	relative_wind_speed	colorBarMaximum	double	15.0
attribute	relative_wind_speed	colorBarMinimum	double	0.0
attribute	relative_wind_speed	coords	String	time
attribute	relative_wind_speed	instrument	String	PMEL WX520 anamometer and ship WX520 anamometer
attribute	relative_wind_speed	ioos_category	String	Wind
attribute	relative_wind_speed	long_name	String	Wind Speed Relative to Ship
attribute	relative_wind_speed	source	String	surface observation
attribute	relative_wind_speed	standard_name	String	wind_speed
attribute	relative_wind_speed	units	String	m s-1
attribute	relative_wind_speed	valid_max	double	50.0
attribute	relative_wind_speed	valid_min	double	0.0
variable	relative_wind_direction		double
attribute	relative_wind_direction	_FillValue	double	NaN
attribute	relative_wind_direction	actual_range	double	-179.9, 179.9
attribute	relative_wind_direction	colorBarMaximum	double	360.0
attribute	relative_wind_direction	colorBarMinimum	double	0.0
attribute	relative_wind_direction	coords	String	time
attribute	relative_wind_direction	instrument	String	PMEL WX520 anamometer and ship WX520 anamometer
attribute	relative_wind_direction	ioos_category	String	Wind
attribute	relative_wind_direction	long_name	String	Wind Direction Relative to Ship
attribute	relative_wind_direction	source	String	surface observation
attribute	relative_wind_direction	standard_name	String	wind_from_direction
attribute	relative_wind_direction	units	String	degree
attribute	relative_wind_direction	valid_max	double	180.0
attribute	relative_wind_direction	valid_min	double	-180.0
variable	cn		double
attribute	cn	_FillValue	double	NaN
attribute	cn	actual_range	double	48.98, 3030.36
attribute	cn	colorBarMaximum	double	100.0
attribute	cn	colorBarMinimum	double	0.0
attribute	cn	coords	String	time
attribute	cn	instrument	String	TSI 3010
attribute	cn	ioos_category	String	Statistics
attribute	cn	long_name	String	Particle number concentration
attribute	cn	source	String	surface observation
attribute	cn	units	String	cm-3
attribute	cn	valid_max	double	500000.0
attribute	cn	valid_min	double	0.0
variable	ufcn		double
attribute	ufcn	_FillValue	double	NaN
attribute	ufcn	actual_range	double	0.04, 6333.27
attribute	ufcn	colorBarMaximum	double	100.0
attribute	ufcn	colorBarMinimum	double	0.0
attribute	ufcn	coords	String	time
attribute	ufcn	instrument	String	TSI 3785 and TSI 3025A
attribute	ufcn	ioos_category	String	Statistics
attribute	ufcn	long_name	String	Ultrafine particle number concentration
attribute	ufcn	source	String	surface observation
attribute	ufcn	standard_name	String	number_concentration_of_aerosol_particles_at_stp_in_air
attribute	ufcn	units	String	cm-3
attribute	ufcn	valid_max	double	1200000.0
attribute	ufcn	valid_min	double	0.0
variable	sea_surface_temperature		double
attribute	sea_surface_temperature	_FillValue	double	NaN
attribute	sea_surface_temperature	actual_range	double	14.6466, 21.3911
attribute	sea_surface_temperature	colorBarMaximum	double	32.0
attribute	sea_surface_temperature	colorBarMinimum	double	0.0
attribute	sea_surface_temperature	coords	String	time
attribute	sea_surface_temperature	instrument	String	Ship Thermosalinograph
attribute	sea_surface_temperature	ioos_category	String	Temperature
attribute	sea_surface_temperature	long_name	String	Sea Surface Temperature
attribute	sea_surface_temperature	source	String	surface ocean observation
attribute	sea_surface_temperature	standard_name	String	sea_surface_temperature
attribute	sea_surface_temperature	units	String	degree_C
attribute	sea_surface_temperature	valid_max	double	45.0
attribute	sea_surface_temperature	valid_min	double	-10.0
variable	salinity		double
attribute	salinity	_FillValue	double	NaN
attribute	salinity	actual_range	double	34.1376, 35.2602
attribute	salinity	colorBarMaximum	double	37.0
attribute	salinity	colorBarMinimum	double	32.0
attribute	salinity	coords	String	time
attribute	salinity	instrument	String	Ship Thermosalinograph
attribute	salinity	ioos_category	String	Salinity
attribute	salinity	long_name	String	Sea Surface Salinity
attribute	salinity	source	String	surface ocean observation
attribute	salinity	standard_name	String	sea_water_practical_salinity
attribute	salinity	units	String	PSU
attribute	salinity	valid_max	double	45.0
attribute	salinity	valid_min	double	0.0
variable	ozone		double
attribute	ozone	_FillValue	double	NaN
attribute	ozone	actual_range	double	0.8, 35.9
attribute	ozone	colorBarMaximum	double	1.0
attribute	ozone	colorBarMinimum	double	0.0
attribute	ozone	coords	String	time
attribute	ozone	instrument	String	TECO 49C
attribute	ozone	ioos_category	String	Contaminants
attribute	ozone	long_name	String	Ozone Mixing Ratio
attribute	ozone	source	String	surface observation
attribute	ozone	standard_name	String	mole_fraction_of_ozone_in_air
attribute	ozone	units	String	ppb
attribute	ozone	valid_max	double	200.0
attribute	ozone	valid_min	double	0.0
variable	so2		double
attribute	so2	_FillValue	double	NaN
attribute	so2	actual_range	double	0.0, 166.51
attribute	so2	coords	String	time
attribute	so2	instrument	String	TECO 43C
attribute	so2	ioos_category	String	Unknown
attribute	so2	long_name	String	SO2 mixing ratio
attribute	so2	source	String	surface observation
attribute	so2	units	String	ppb
variable	scatter_450_sub1		double
attribute	scatter_450_sub1	_FillValue	double	NaN
attribute	scatter_450_sub1	actual_range	double	0.138, 118.945
attribute	scatter_450_sub1	colorBarMaximum	double	500.0
attribute	scatter_450_sub1	colorBarMinimum	double	-500.0
attribute	scatter_450_sub1	coords	String	time
attribute	scatter_450_sub1	instrument	String	TSI Model 3563 Nephelometer
attribute	scatter_450_sub1	ioos_category	String	Optical Properties
attribute	scatter_450_sub1	long_name	String	Aerosol light scattering coefficient for Dp < 1.1 um at 450 nm, Mm-1
attribute	scatter_450_sub1	source	String	surface observation
attribute	scatter_450_sub1	standard_name	String	volume_scattering_coefficient_of_radiative_flux_in_air_due_to_ambient_aerosol_particles
attribute	scatter_450_sub1	units	String	MM-1
attribute	scatter_450_sub1	valid_max	double	10000.0
attribute	scatter_450_sub1	valid_min	double	0.0
variable	scatter_550_sub1		double
attribute	scatter_550_sub1	_FillValue	double	NaN
attribute	scatter_550_sub1	actual_range	double	-0.704, 83.077
attribute	scatter_550_sub1	colorBarMaximum	double	500.0
attribute	scatter_550_sub1	colorBarMinimum	double	-500.0
attribute	scatter_550_sub1	coords	String	time
attribute	scatter_550_sub1	instrument	String	TSI Model 3563 Nephelometer
attribute	scatter_550_sub1	ioos_category	String	Optical Properties
attribute	scatter_550_sub1	long_name	String	Aerosol light scattering coefficient for Dp < 1.1 um at 550 nm, Mm-1
attribute	scatter_550_sub1	source	String	surface observation
attribute	scatter_550_sub1	standard_name	String	volume_scattering_coefficient_of_radiative_flux_in_air_due_to_ambient_aerosol_particles
attribute	scatter_550_sub1	units	String	MM-1
attribute	scatter_550_sub1	valid_max	double	1000.0
attribute	scatter_550_sub1	valid_min	double	0.0
variable	scatter_700_sub1		double
attribute	scatter_700_sub1	_FillValue	double	NaN
attribute	scatter_700_sub1	actual_range	double	-2.153, 55.296
attribute	scatter_700_sub1	colorBarMaximum	double	500.0
attribute	scatter_700_sub1	colorBarMinimum	double	-500.0
attribute	scatter_700_sub1	coords	String	time
attribute	scatter_700_sub1	instrument	String	TSI Model 3563 Nephelometer
attribute	scatter_700_sub1	ioos_category	String	Optical Properties
attribute	scatter_700_sub1	long_name	String	Aerosol light scattering coefficient for Dp < 1.1 um at 700 nm, Mm-1
attribute	scatter_700_sub1	source	String	surface observation
attribute	scatter_700_sub1	standard_name	String	volume_scattering_coefficient_of_radiative_flux_in_air_due_to_ambient_aerosol_particles
attribute	scatter_700_sub1	units	String	MM-1
attribute	scatter_700_sub1	valid_max	double	10000.0
attribute	scatter_700_sub1	valid_min	double	0.0
variable	backscatter_450_sub1		double
attribute	backscatter_450_sub1	_FillValue	double	NaN
attribute	backscatter_450_sub1	coords	String	time
attribute	backscatter_450_sub1	instrument	String	TSI Model 3563 Nephelometer
attribute	backscatter_450_sub1	ioos_category	String	Optical Properties
attribute	backscatter_450_sub1	long_name	String	Aerosol light backscattering coefficient for Dp < 1.1 um at 450 nm, Mm-1
attribute	backscatter_450_sub1	source	String	surface observations
attribute	backscatter_450_sub1	units	String	MM-1
variable	backscatter_550_sub1		double
attribute	backscatter_550_sub1	_FillValue	double	NaN
attribute	backscatter_550_sub1	coords	String	time
attribute	backscatter_550_sub1	ioos_category	String	Optical Properties
attribute	backscatter_550_sub1	long_name	String	Aerosol light backscattering coefficient for Dp < 1.1 um at 550 nm, Mm-1
attribute	backscatter_550_sub1	source	String	surface observation
attribute	backscatter_550_sub1	units	String	MM-1
variable	backscatter_700_sub1		double
attribute	backscatter_700_sub1	_FillValue	double	NaN
attribute	backscatter_700_sub1	coords	String	time
attribute	backscatter_700_sub1	ioos_category	String	Optical Properties
attribute	backscatter_700_sub1	long_name	String	Aerosol light backscattering coefficient for Dp < 1.1 um at 700 nm, Mm-1
attribute	backscatter_700_sub1	source	String	surface observation
attribute	backscatter_700_sub1	units	String	MM-1
variable	scatter_450_sub10		double
attribute	scatter_450_sub10	_FillValue	double	NaN
attribute	scatter_450_sub10	actual_range	double	1.703, 139.249
attribute	scatter_450_sub10	colorBarMaximum	double	500.0
attribute	scatter_450_sub10	colorBarMinimum	double	-500.0
attribute	scatter_450_sub10	coords	String	time
attribute	scatter_450_sub10	instrument	String	TSI Model 3563 Nephelometer
attribute	scatter_450_sub10	ioos_category	String	Optical Properties
attribute	scatter_450_sub10	long_name	String	Aerosol light scattering coefficient for Dp < 10 um at 450 nm, Mm-1
attribute	scatter_450_sub10	source	String	surface observation
attribute	scatter_450_sub10	standard_name	String	volume_scattering_coefficient_of_radiative_flux_in_air_due_to_ambient_aerosol_particles
attribute	scatter_450_sub10	units	String	MM-1
attribute	scatter_450_sub10	valid_max	double	800.0
attribute	scatter_450_sub10	valid_min	double	0.0
variable	scatter_550_sub10		double
attribute	scatter_550_sub10	_FillValue	double	NaN
attribute	scatter_550_sub10	actual_range	double	1.087, 92.102
attribute	scatter_550_sub10	colorBarMaximum	double	500.0
attribute	scatter_550_sub10	colorBarMinimum	double	-500.0
attribute	scatter_550_sub10	coords	String	time
attribute	scatter_550_sub10	instrument	String	TSI Model 3563 Nephelometer
attribute	scatter_550_sub10	ioos_category	String	Optical Properties
attribute	scatter_550_sub10	long_name	String	Aerosol light scattering coefficient for Dp < 10 um at 550 nm, Mm-1
attribute	scatter_550_sub10	source	String	surface observation
attribute	scatter_550_sub10	standard_name	String	volume_scattering_coefficient_of_radiative_flux_in_air_due_to_ambient_aerosol_particles
attribute	scatter_550_sub10	units	String	MM-1
attribute	scatter_550_sub10	valid_max	double	250.0
attribute	scatter_550_sub10	valid_min	double	0.0
variable	scatter_700_sub10		double
attribute	scatter_700_sub10	_FillValue	double	NaN
attribute	scatter_700_sub10	actual_range	double	-0.567, 59.938
attribute	scatter_700_sub10	colorBarMaximum	double	500.0
attribute	scatter_700_sub10	colorBarMinimum	double	-500.0
attribute	scatter_700_sub10	coords	String	time
attribute	scatter_700_sub10	instrument	String	TSI Model 3563 Nephelometer
attribute	scatter_700_sub10	ioos_category	String	Optical Properties
attribute	scatter_700_sub10	long_name	String	Aerosol light scattering coefficient for Dp < 10 um at 700 nm, Mm-1
attribute	scatter_700_sub10	source	String	surface observation
attribute	scatter_700_sub10	standard_name	String	volume_scattering_coefficient_of_radiative_flux_in_air_due_to_ambient_aerosol_particles
attribute	scatter_700_sub10	units	String	MM-1
attribute	scatter_700_sub10	valid_max	double	250.0
attribute	scatter_700_sub10	valid_min	double	0.0
variable	backscatter_450_sub10		double
attribute	backscatter_450_sub10	_FillValue	double	NaN
attribute	backscatter_450_sub10	actual_range	double	-0.232, 14.368
attribute	backscatter_450_sub10	coords	String	time
attribute	backscatter_450_sub10	instrument	String	TSI Model 3563 Nephelometer
attribute	backscatter_450_sub10	ioos_category	String	Optical Properties
attribute	backscatter_450_sub10	long_name	String	Aerosol light backscattering coefficient for Dp < 10 um at 450 nm, Mm-1
attribute	backscatter_450_sub10	source	String	surface observation
attribute	backscatter_450_sub10	units	String	MM-1
variable	backscatter_550_sub10		double
attribute	backscatter_550_sub10	_FillValue	double	NaN
attribute	backscatter_550_sub10	actual_range	double	0.033, 8.061
attribute	backscatter_550_sub10	coords	String	time
attribute	backscatter_550_sub10	ioos_category	String	Optical Properties
attribute	backscatter_550_sub10	long_name	String	Aerosol light backscattering coefficient for Dp < 10 um at 550 nm, Mm-1
attribute	backscatter_550_sub10	source	String	surface observation
attribute	backscatter_550_sub10	units	String	MM-1
variable	backscatter_700_sub10		double
attribute	backscatter_700_sub10	_FillValue	double	NaN
attribute	backscatter_700_sub10	actual_range	double	-0.312, 6.945
attribute	backscatter_700_sub10	coords	String	time
attribute	backscatter_700_sub10	ioos_category	String	Optical Properties
attribute	backscatter_700_sub10	long_name	String	Aerosol light backscattering coefficient for Dp < 10 um at 700 nm, Mm-1
attribute	backscatter_700_sub10	source	String	surface observation
attribute	backscatter_700_sub10	units	String	MM-1
variable	scatter_rh_sub10		double
attribute	scatter_rh_sub10	_FillValue	double	NaN
attribute	scatter_rh_sub10	actual_range	double	19.542, 89.057
attribute	scatter_rh_sub10	colorBarMaximum	double	100.0
attribute	scatter_rh_sub10	colorBarMinimum	double	0.0
attribute	scatter_rh_sub10	coords	String	time
attribute	scatter_rh_sub10	instrument	String	TSI Model 3563 Nephelometer with viasala sensor
attribute	scatter_rh_sub10	ioos_category	String	Meteorology
attribute	scatter_rh_sub10	long_name	String	Sample RH of aerosol light scattering coefficient for Dp < 10 um, %
attribute	scatter_rh_sub10	source	String	surface observation
attribute	scatter_rh_sub10	standard_name	String	relative_humidity
attribute	scatter_rh_sub10	units	String	percent
attribute	scatter_rh_sub10	valid_max	double	100.0
attribute	scatter_rh_sub10	valid_min	double	0.0
variable	scatter_angstrom_450_550_sub1		double
attribute	scatter_angstrom_450_550_sub1	_FillValue	double	NaN
attribute	scatter_angstrom_450_550_sub1	actual_range	double	-2.429, 3.5209
attribute	scatter_angstrom_450_550_sub1	colorBarMaximum	double	25.0
attribute	scatter_angstrom_450_550_sub1	colorBarMinimum	double	0.0
attribute	scatter_angstrom_450_550_sub1	coords	String	time
attribute	scatter_angstrom_450_550_sub1	instrument	String	TSI Model 3563 Nephelometer
attribute	scatter_angstrom_450_550_sub1	ioos_category	String	Optical Properties
attribute	scatter_angstrom_450_550_sub1	long_name	String	Scattering Angstrom Exponent for Dp < 1.1 um and the 450, 550 wavelength pair
attribute	scatter_angstrom_450_550_sub1	source	String	surface observation
attribute	scatter_angstrom_450_550_sub1	standard_name	String	angstrom_exponent_of_ambient_aerosol_in_air
attribute	scatter_angstrom_450_550_sub1	valid_max	double	20.0
attribute	scatter_angstrom_450_550_sub1	valid_min	double	0.0
variable	scatter_angstrom_450_700_sub1		double
attribute	scatter_angstrom_450_700_sub1	_FillValue	double	NaN
attribute	scatter_angstrom_450_700_sub1	actual_range	double	-0.6081, 5.9412
attribute	scatter_angstrom_450_700_sub1	colorBarMaximum	double	25.0
attribute	scatter_angstrom_450_700_sub1	colorBarMinimum	double	0.0
attribute	scatter_angstrom_450_700_sub1	coords	String	time
attribute	scatter_angstrom_450_700_sub1	instrument	String	TSI Model 3563 Nephelometer
attribute	scatter_angstrom_450_700_sub1	ioos_category	String	Optical Properties
attribute	scatter_angstrom_450_700_sub1	long_name	String	Scattering Angstrom Exponent for Dp < 1.1 um and the 450, 700 wavelength pair
attribute	scatter_angstrom_450_700_sub1	source	String	surface observation
attribute	scatter_angstrom_450_700_sub1	standard_name	String	angstrom_exponent_of_ambient_aerosol_in_air
attribute	scatter_angstrom_450_700_sub1	valid_max	double	20.0
attribute	scatter_angstrom_450_700_sub1	valid_min	double	0.0
variable	scatter_angstrom_550_700_sub1		double
attribute	scatter_angstrom_550_700_sub1	_FillValue	double	NaN
attribute	scatter_angstrom_550_700_sub1	actual_range	double	-0.8316, 9.7804
attribute	scatter_angstrom_550_700_sub1	colorBarMaximum	double	25.0
attribute	scatter_angstrom_550_700_sub1	colorBarMinimum	double	0.0
attribute	scatter_angstrom_550_700_sub1	coords	String	time
attribute	scatter_angstrom_550_700_sub1	instrument	String	TSI Model 3563 Nephelometer
attribute	scatter_angstrom_550_700_sub1	ioos_category	String	Optical Properties
attribute	scatter_angstrom_550_700_sub1	long_name	String	Scattering Angstrom Exponent for Dp < 1.1 um and the 550, 700 wavelength pair
attribute	scatter_angstrom_550_700_sub1	source	String	surface observation
attribute	scatter_angstrom_550_700_sub1	standard_name	String	angstrom_exponent_of_ambient_aerosol_in_air
attribute	scatter_angstrom_550_700_sub1	valid_max	double	20.0
attribute	scatter_angstrom_550_700_sub1	valid_min	double	0.0
variable	absorb_467_sub1		double
attribute	absorb_467_sub1	_FillValue	double	NaN
attribute	absorb_467_sub1	actual_range	double	-2.2452, 14.4502
attribute	absorb_467_sub1	colorBarMaximum	double	1500.0
attribute	absorb_467_sub1	colorBarMinimum	double	0.0
attribute	absorb_467_sub1	coords	String	time
attribute	absorb_467_sub1	instrument	String	PSAP
attribute	absorb_467_sub1	ioos_category	String	Optical Properties
attribute	absorb_467_sub1	long_name	String	Aerosol light absorption coefficient for Dp < 1.1 um at 467 nm, Mm-1
attribute	absorb_467_sub1	source	String	surface observation
attribute	absorb_467_sub1	standard_name	String	volume_absorption_coefficient_in_air_due_to_dried_aerosol_particles
attribute	absorb_467_sub1	units	String	MM-1
attribute	absorb_467_sub1	valid_max	double	1000.0
attribute	absorb_467_sub1	valid_min	double	0.0
variable	absorb_530_sub1		double
attribute	absorb_530_sub1	_FillValue	double	NaN
attribute	absorb_530_sub1	actual_range	double	-2.0225, 12.5393
attribute	absorb_530_sub1	colorBarMaximum	double	1500.0
attribute	absorb_530_sub1	colorBarMinimum	double	0.0
attribute	absorb_530_sub1	coords	String	time
attribute	absorb_530_sub1	instrument	String	PSAP
attribute	absorb_530_sub1	ioos_category	String	Optical Properties
attribute	absorb_530_sub1	long_name	String	Aerosol light absorption coefficient for Dp < 1.1 um at 530 nm, Mm-1
attribute	absorb_530_sub1	source	String	surface observation
attribute	absorb_530_sub1	standard_name	String	volume_absorption_coefficient_in_air_due_to_dried_aerosol_particles
attribute	absorb_530_sub1	units	String	MM-1
attribute	absorb_530_sub1	valid_max	double	1000.0
attribute	absorb_530_sub1	valid_min	double	0.0
variable	absorb_660_sub1		double
attribute	absorb_660_sub1	_FillValue	double	NaN
attribute	absorb_660_sub1	actual_range	double	-1.4951, 10.0507
attribute	absorb_660_sub1	colorBarMaximum	double	1500.0
attribute	absorb_660_sub1	colorBarMinimum	double	0.0
attribute	absorb_660_sub1	coords	String	time
attribute	absorb_660_sub1	instrument	String	PSAP
attribute	absorb_660_sub1	ioos_category	String	Optical Properties
attribute	absorb_660_sub1	long_name	String	Aerosol light absorption coefficient for Dp < 1.1 um at 660 nm, Mm-1
attribute	absorb_660_sub1	source	String	surface observation
attribute	absorb_660_sub1	standard_name	String	volume_absorption_coefficient_in_air_due_to_dried_aerosol_particles
attribute	absorb_660_sub1	units	String	MM-1
attribute	absorb_660_sub1	valid_max	double	1000.0
attribute	absorb_660_sub1	valid_min	double	0.0
variable	absorb_467_sub10		double
attribute	absorb_467_sub10	_FillValue	double	NaN
attribute	absorb_467_sub10	actual_range	double	-2.3872, 14.5857
attribute	absorb_467_sub10	colorBarMaximum	double	1500.0
attribute	absorb_467_sub10	colorBarMinimum	double	0.0
attribute	absorb_467_sub10	coords	String	time
attribute	absorb_467_sub10	instrument	String	PSAP
attribute	absorb_467_sub10	ioos_category	String	Optical Properties
attribute	absorb_467_sub10	long_name	String	Aerosol light absorption coefficient for Dp < 10 um at 467 nm, Mm-1
attribute	absorb_467_sub10	source	String	surface observation
attribute	absorb_467_sub10	standard_name	String	volume_absorption_coefficient_in_air_due_to_dried_aerosol_particles
attribute	absorb_467_sub10	units	String	MM-1
attribute	absorb_467_sub10	valid_max	double	1000.0
attribute	absorb_467_sub10	valid_min	double	0.0
variable	absorb_530_sub10		double
attribute	absorb_530_sub10	_FillValue	double	NaN
attribute	absorb_530_sub10	actual_range	double	-1.8034, 12.6312
attribute	absorb_530_sub10	colorBarMaximum	double	1500.0
attribute	absorb_530_sub10	colorBarMinimum	double	0.0
attribute	absorb_530_sub10	coords	String	time
attribute	absorb_530_sub10	instrument	String	PSAP
attribute	absorb_530_sub10	ioos_category	String	Optical Properties
attribute	absorb_530_sub10	long_name	String	Aerosol light absorption coefficient for Dp < 10 um at 530 nm, Mm-1
attribute	absorb_530_sub10	source	String	surface observation
attribute	absorb_530_sub10	standard_name	String	volume_absorption_coefficient_in_air_due_to_dried_aerosol_particles
attribute	absorb_530_sub10	units	String	MM-1
attribute	absorb_530_sub10	valid_max	double	1000.0
attribute	absorb_530_sub10	valid_min	double	0.0
variable	absorb_660_sub10		double
attribute	absorb_660_sub10	_FillValue	double	NaN
attribute	absorb_660_sub10	actual_range	double	-1.125, 10.2088
attribute	absorb_660_sub10	colorBarMaximum	double	1500.0
attribute	absorb_660_sub10	colorBarMinimum	double	0.0
attribute	absorb_660_sub10	coords	String	time
attribute	absorb_660_sub10	instrument	String	PSAP
attribute	absorb_660_sub10	ioos_category	String	Optical Properties
attribute	absorb_660_sub10	long_name	String	Aerosol light absorption coefficient for Dp < 10 um at 660 nm, Mm-1
attribute	absorb_660_sub10	source	String	surface observation
attribute	absorb_660_sub10	standard_name	String	volume_absorption_coefficient_in_air_due_to_dried_aerosol_particles
attribute	absorb_660_sub10	units	String	MM-1
attribute	absorb_660_sub10	valid_max	double	1000.0
attribute	absorb_660_sub10	valid_min	double	0.0
variable	absorb_angstrom_467_530_sub1		double
attribute	absorb_angstrom_467_530_sub1	_FillValue	double	NaN
attribute	absorb_angstrom_467_530_sub1	actual_range	double	-0.1088, 2.3729
attribute	absorb_angstrom_467_530_sub1	colorBarMaximum	double	25.0
attribute	absorb_angstrom_467_530_sub1	colorBarMinimum	double	0.0
attribute	absorb_angstrom_467_530_sub1	coords	String	time
attribute	absorb_angstrom_467_530_sub1	instrument	String	PSAP
attribute	absorb_angstrom_467_530_sub1	ioos_category	String	Optical Properties
attribute	absorb_angstrom_467_530_sub1	long_name	String	Absorption Angstrom Exponent for Dp < 1.1 um and the 467, 530 wavelength pair
attribute	absorb_angstrom_467_530_sub1	source	String	surface observation
attribute	absorb_angstrom_467_530_sub1	standard_name	String	angstrom_exponent_of_ambient_aerosol_in_air
attribute	absorb_angstrom_467_530_sub1	valid_max	double	20.0
attribute	absorb_angstrom_467_530_sub1	valid_min	double	0.0
variable	absorb_angstrom_467_660_sub1		double
attribute	absorb_angstrom_467_660_sub1	_FillValue	double	NaN
attribute	absorb_angstrom_467_660_sub1	actual_range	double	-0.1571, 1.1004
attribute	absorb_angstrom_467_660_sub1	colorBarMaximum	double	25.0
attribute	absorb_angstrom_467_660_sub1	colorBarMinimum	double	0.0
attribute	absorb_angstrom_467_660_sub1	coords	String	time
attribute	absorb_angstrom_467_660_sub1	instrument	String	PSAP
attribute	absorb_angstrom_467_660_sub1	ioos_category	String	Optical Properties
attribute	absorb_angstrom_467_660_sub1	long_name	String	Absorption Angstrom Exponent for Dp < 1.1 um and the 467, 660 wavelength pair
attribute	absorb_angstrom_467_660_sub1	source	String	surface observation
attribute	absorb_angstrom_467_660_sub1	standard_name	String	angstrom_exponent_of_ambient_aerosol_in_air
attribute	absorb_angstrom_467_660_sub1	valid_max	double	20.0
attribute	absorb_angstrom_467_660_sub1	valid_min	double	0.0
variable	absorb_angstrom_530_660_sub1		double
attribute	absorb_angstrom_530_660_sub1	_FillValue	double	NaN
attribute	absorb_angstrom_530_660_sub1	actual_range	double	-0.1856, 1.0605
attribute	absorb_angstrom_530_660_sub1	colorBarMaximum	double	25.0
attribute	absorb_angstrom_530_660_sub1	colorBarMinimum	double	0.0
attribute	absorb_angstrom_530_660_sub1	coords	String	time
attribute	absorb_angstrom_530_660_sub1	instrument	String	PSAP
attribute	absorb_angstrom_530_660_sub1	ioos_category	String	Optical Properties
attribute	absorb_angstrom_530_660_sub1	long_name	String	Absorption Angstrom Exponent for Dp < 1.1 um and the 530, 660 wavelength pair
attribute	absorb_angstrom_530_660_sub1	source	String	surface observation
attribute	absorb_angstrom_530_660_sub1	standard_name	String	angstrom_exponent_of_ambient_aerosol_in_air
attribute	absorb_angstrom_530_660_sub1	valid_max	double	20.0
attribute	absorb_angstrom_530_660_sub1	valid_min	double	0.0
variable	ssa_467_sub1		double
attribute	ssa_467_sub1	_FillValue	double	NaN
attribute	ssa_467_sub1	actual_range	double	0.7371, 1.0
attribute	ssa_467_sub1	colorBarMaximum	double	1.5
attribute	ssa_467_sub1	colorBarMinimum	double	0.0
attribute	ssa_467_sub1	coords	String	time
attribute	ssa_467_sub1	instrument	String	TSI Model 3563 Nephelometer and Radiance Research PSAP
attribute	ssa_467_sub1	ioos_category	String	Optical Properties
attribute	ssa_467_sub1	long_name	String	Single Scattering Albedo for Dp < 1.1 um at 467 nm
attribute	ssa_467_sub1	source	String	surface observation
attribute	ssa_467_sub1	standard_name	String	single_scattering_albedo_in_air_due_to_ambient_aerosol_particles
attribute	ssa_467_sub1	valid_max	double	1.0
attribute	ssa_467_sub1	valid_min	double	0.0
variable	ssa_530_sub1		double
attribute	ssa_530_sub1	_FillValue	double	NaN
attribute	ssa_530_sub1	actual_range	double	0.7238, 1.0
attribute	ssa_530_sub1	colorBarMaximum	double	6.0
attribute	ssa_530_sub1	colorBarMinimum	double	0.0
attribute	ssa_530_sub1	coords	String	time
attribute	ssa_530_sub1	instrument	String	TSI Model 3563 Nephelometer and Radiance Research PSAP
attribute	ssa_530_sub1	ioos_category	String	Optical Properties
attribute	ssa_530_sub1	long_name	String	Single Scattering Albedo for Dp < 1.1 um at 530 nm
attribute	ssa_530_sub1	source	String	surface observation
attribute	ssa_530_sub1	standard_name	String	single_scattering_albedo_in_air_due_to_ambient_aerosol_particles
attribute	ssa_530_sub1	valid_max	double	5.0
attribute	ssa_530_sub1	valid_min	double	0.0
variable	ssa_660_sub1		double
attribute	ssa_660_sub1	_FillValue	double	NaN
attribute	ssa_660_sub1	actual_range	double	0.6918, 1.0
attribute	ssa_660_sub1	colorBarMaximum	double	6.0
attribute	ssa_660_sub1	colorBarMinimum	double	0.0
attribute	ssa_660_sub1	coords	String	time
attribute	ssa_660_sub1	instrument	String	TSI Model 3563 Nephelometer and Radiance Research PSAP
attribute	ssa_660_sub1	ioos_category	String	Optical Properties
attribute	ssa_660_sub1	long_name	String	Single Scattering Albedo for Dp < 1.1 um at 660 nm
attribute	ssa_660_sub1	source	String	surface observation
attribute	ssa_660_sub1	standard_name	String	single_scattering_albedo_in_air_due_to_ambient_aerosol_particles
attribute	ssa_660_sub1	valid_max	double	5.0
attribute	ssa_660_sub1	valid_min	double	0.0
variable	scatter_frh_450_sub1		double
attribute	scatter_frh_450_sub1	_FillValue	double	NaN
attribute	scatter_frh_450_sub1	actual_range	double	1.405, 5.8659
attribute	scatter_frh_450_sub1	coords	String	time
attribute	scatter_frh_450_sub1	instrument	String	TSI Model 3563 Nephelometers
attribute	scatter_frh_450_sub1	ioos_category	String	Optical Properties
attribute	scatter_frh_450_sub1	long_name	String	Dependence of aerosol light scattering on RH (fRH) for Dp < 1.1 um at 450 nm
attribute	scatter_frh_450_sub1	source	String	surface observation
variable	scatter_frh_550_sub1		double
attribute	scatter_frh_550_sub1	_FillValue	double	NaN
attribute	scatter_frh_550_sub1	actual_range	double	1.2865, 7.9186
attribute	scatter_frh_550_sub1	coords	String	time
attribute	scatter_frh_550_sub1	ioos_category	String	Optical Properties
attribute	scatter_frh_550_sub1	long_name	String	Dependence of aerosol light scattering on RH (fRH) for Dp < 1.1 um at 550 nm
attribute	scatter_frh_550_sub1	source	String	surface observation
variable	scatter_frh_700_sub1		double
attribute	scatter_frh_700_sub1	_FillValue	double	NaN
attribute	scatter_frh_700_sub1	actual_range	double	0.5425, 9.0819
attribute	scatter_frh_700_sub1	coords	String	time
attribute	scatter_frh_700_sub1	ioos_category	String	Optical Properties
attribute	scatter_frh_700_sub1	long_name	String	Dependence of aerosol light scattering on RH (fRH) for Dp < 1.1 um at 700 nm
attribute	scatter_frh_700_sub1	source	String	surface observation

The information in the table above is also available in other file formats (.csv, .htmlTable, .itx, .json, .jsonlCSV1, .jsonlCSV, .jsonlKVP, .mat, .nc, .nccsv, .tsv, .xhtml) via a RESTful web service.