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ERDDAP > info > IrregularTime2_8154_6d1f_180a

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   set  data   graph     PMEL Atmospheric Chemistry NEAQAS2004 Experiment irregular 2 data    ?   F   I   M   background (external link) RSS Subscribe
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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 traj, id
attribute NC_GLOBAL Conventions String CF-1.6, COARDS, ACDD-1.3
attribute NC_GLOBAL creation_date String 17:30 14-MAR-05
attribute NC_GLOBAL creator_email String at
attribute NC_GLOBAL creator_name String PMEL Atmospheric Chemistry
attribute NC_GLOBAL creator_url String (external link)
attribute NC_GLOBAL Easternmost_Easting double -67.4354
attribute NC_GLOBAL featureType String Trajectory
attribute NC_GLOBAL FILE_START_TIME String 2004 07 06 13 38
attribute NC_GLOBAL FILE_STOP_TIME String 2004 08 10 20 44
attribute NC_GLOBAL geospatial_lat_max double 44.4689
attribute NC_GLOBAL geospatial_lat_min double 42.238
attribute NC_GLOBAL geospatial_lat_units String degrees_north
attribute NC_GLOBAL geospatial_lon_max double -67.4354
attribute NC_GLOBAL geospatial_lon_min double -71.0479
attribute NC_GLOBAL geospatial_lon_units String degrees_east
attribute NC_GLOBAL history String FERRET V7.01 (beta/debug) 19-Aug-16
attribute NC_GLOBAL infoUrl String (external link)
attribute NC_GLOBAL institution String PMEL Atmospheric Chemistry
attribute NC_GLOBAL keywords String aerosol, air, airmass, angle, aod, AOD1_1881, AOD2_1882, AOD3_1883, AOD4_1884, AOD5_1885, AODAMS_1879, AODMZA_1880, atmospheric, ch-1, ch-2, ch-3, ch-4, ch-5, chemistry, data, days, depth, DUR_628, duration, england, environmental, irregular, julian, laboratory, latitude, lon360, longitude, marine, measurement, new, noaa, optical, pacific, pmel, quality, sample, study, TIM_627, time, traj, trajectory, zenith
attribute NC_GLOBAL license String Data Licenses / Data Usage Restrictions
The data may be used and redistributed for free but is not intended
for legal use, since it may contain inaccuracies. Neither the data
Contributor, ERD, NOAA, nor the United States Government, nor any
of their employees or contractors, makes any warranty, express or
implied, including warranties of merchantability and fitness for a
particular purpose, or assumes any legal liability for the accuracy,
completeness, or usefulness, of this information.

Unless otherwise noted, data served through this ERDDAP server are
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attribute NC_GLOBAL Northernmost_Northing double 44.4689
attribute NC_GLOBAL PROJECT String NEAQS2004
attribute NC_GLOBAL REMARK_01 String Data Source Description= Aerosol Optical Depth Data from R/V RONALD H. BROWN du
attribute NC_GLOBAL REMARK_02 String Time Description= irregular time interval
attribute NC_GLOBAL REMARK_03 String Other= All data are from 7 second averages, data start times are irregular with
attribute NC_GLOBAL REMARK_04 String Version 0= Initial version, no comments
attribute NC_GLOBAL REMARK_05 String Three 5-channel handheld Microtops sunphotometer (Solar Light Co.) were used.
attribute NC_GLOBAL REMARK_06 String Two units (SN 4080 and 3803) have wavelengths of 380, 440, 500, 675, and 870 nm)
attribute NC_GLOBAL REMARK_07 String The third unit (SN 5355) has wavelengths of 340, 380, 500, 675, and 870 nm).
attribute NC_GLOBAL REMARK_08 String The full angular field of view for the Microtops is 2.5 deg. The instruments ha
attribute NC_GLOBAL REMARK_09 String pressure and temperature sensors and were operated with a GPS connection to obta
attribute NC_GLOBAL REMARK_10 String and time of the measurements. Raw signal voltages were converted to aerosol opti
attribute NC_GLOBAL REMARK_11 String correcting for Rayleigh scattering [Penndorf, 1957], ozone optical depth, and an
attribute NC_GLOBAL REMARK_12 String accounts for the Earth's curvature [Kasten and Young, 1989]. Ozone column amount
attribute NC_GLOBAL REMARK_13 String the ozone optical depth were obtained from TOMS data as a daily average througho
attribute NC_GLOBAL REMARK_14 String the latitude and longitude of Boston. Units 4080 and 5355 were calibrated at MLO
attribute NC_GLOBAL REMARK_15 String month prior to the start of the cruise.
attribute NC_GLOBAL REMARK_16 String Unit 3803 was calibrated at the factory in January, 2004.
attribute NC_GLOBAL REMARK_17 String Calibrations were done using a Langley plot approach [Shaw, 1983]. Measurements
attribute NC_GLOBAL REMARK_18 String followed the protocol of Knobelspiesse et al. [2003]. The scan length was set to
attribute NC_GLOBAL REMARK_19 String 20 measurements are obtained during each "shot". The largest voltage of the 20 m
attribute NC_GLOBAL REMARK_20 String recorded which corresponds to the lowest AOD. This approach helps to eliminate e
attribute NC_GLOBAL REMARK_21 String measurements that result from pointing errors on a moving ship. After the experi
attribute NC_GLOBAL REMARK_22 String processing algorithm was applied. This algoritm calculates a coefficient of vari
attribute NC_GLOBAL REMARK_23 String measurement equal to the sample standard deviation divided by the sample mean.
attribute NC_GLOBAL REMARK_24 String If the CoV > than 0.05, the highest AOD is removed and CoV is recalculated. This
attribute NC_GLOBAL REMARK_25 String repeated until all points "pass". All units were compared at each common wavleng
attribute NC_GLOBAL REMARK_26 String the slope was 0.98 and r^2 was 0.99. For 500 nm, the slope was 0.98 and r^2 was
attribute NC_GLOBAL REMARK_27 String the slope was 0.95 to 0.98 and the r^2 was 0.96. For 870, the slope was 0.92 and
attribute NC_GLOBAL REMARK_28 String 0.90. For 440 nm the slope was 0.99 and r^2 was 0.99. The uncertainty of the Mic
attribute NC_GLOBAL REMARK_29 String esimated to be +/- 0.015 AOD.
attribute NC_GLOBAL REMARK_30 String Kasten, F. and A. T. Young, Revised optical air mass tables and approximation
attribute NC_GLOBAL REMARK_31 String Applied Optics, 28, 4735 - 4738, 1989.
attribute NC_GLOBAL REMARK_32 String Knobelspiesse, K.D. et al., Sun-pointing-error correction for sea deployment
attribute NC_GLOBAL source String Quinn, Patricia K/NOAA-PMEL/Phone: 206-526-6892 /Address: 7600 Sand Pt. Wy. NE,S
attribute NC_GLOBAL sourceUrl String (local files)
attribute NC_GLOBAL Southernmost_Northing double 42.238
attribute NC_GLOBAL standard_name_vocabulary String CF Standard Name Table v29
attribute NC_GLOBAL SUBMIT_DATE String 14-MAR-2005
attribute NC_GLOBAL subsetVariables String traj, id
attribute NC_GLOBAL summary String Pacific Marine Environmental Laboratory (PMEL) Atmospheric Chemistry New England Air Quality Study - 2004 irregular 2 data
attribute NC_GLOBAL time_coverage_end String 2004-08-10T20:44:36Z
attribute NC_GLOBAL time_coverage_start String 2004-07-06T13:38:59Z
attribute NC_GLOBAL TIME_PAR String year month day hour minute second
attribute NC_GLOBAL title String PMEL Atmospheric Chemistry NEAQAS2004 Experiment irregular 2 data
attribute NC_GLOBAL version String 0
attribute NC_GLOBAL Westernmost_Easting double -71.0479
variable traj   double  
attribute traj actual_range double 1.0, 1.0
attribute traj axis String E
attribute traj long_name String Traj
attribute traj point_spacing String even
variable id   String  
attribute id cf_role String trajectory_id
attribute id long_name String trajectory id
variable time   double  
attribute time _CoordinateAxisType String Time
attribute time actual_range double 1.0891211390000002E9, 1.0921706760000002E9
attribute time axis String T
attribute time ioos_category String Time
attribute time long_name String Time
attribute time standard_name String time
attribute time time_origin String 01-JAN-1970 00:00:00
attribute time units String seconds since 1970-01-01T00:00:00Z
variable longitude   float  
attribute longitude _CoordinateAxisType String Lon
attribute longitude _FillValue float -1.0E34
attribute longitude actual_range float -71.0479, -67.4354
attribute longitude axis String X
attribute longitude colorBarMaximum double 180.0
attribute longitude colorBarMinimum double -180.0
attribute longitude epic_code int 502
attribute longitude FORTRAN_format String f10.4
attribute longitude gap_value float -999.0
attribute longitude generic_name String lon
attribute longitude history String From NEAQS2004_AOD3803_v0_copy
attribute longitude instr_id String GPS
attribute longitude ioos_category String Location
attribute longitude long_name String Longitude
attribute longitude max_value float 360.0
attribute longitude min_value float -180.0
attribute longitude missing_value float -1.0E34
attribute longitude name String LON
attribute longitude note_01 String UNCERTAINTY=+/-0.001 deg
attribute longitude plot_lab String LONGT
attribute longitude standard_name String longitude
attribute longitude units String degrees_east
variable lon360   float  
attribute lon360 _FillValue float -1.0E34
attribute lon360 actual_range float 288.9521, 292.5646
attribute lon360 colorBarMaximum double 180.0
attribute lon360 colorBarMinimum double -180.0
attribute lon360 history String From NEAQS2004_AOD3803_v0_copy
attribute lon360 long_name String longitude 360
attribute lon360 missing_value float -1.0E34
attribute lon360 standard_name String longitude
attribute lon360 units String degrees_east
variable latitude   float  
attribute latitude _CoordinateAxisType String Lat
attribute latitude _FillValue float -1.0E34
attribute latitude actual_range float 42.238, 44.4689
attribute latitude axis String Y
attribute latitude colorBarMaximum double 90.0
attribute latitude colorBarMinimum double -90.0
attribute latitude epic_code int 500
attribute latitude FORTRAN_format String f10.4
attribute latitude gap_value float -999.0
attribute latitude generic_name String lat
attribute latitude history String From NEAQS2004_AOD3803_v0_copy
attribute latitude instr_id String GPS
attribute latitude ioos_category String Location
attribute latitude long_name String Latitude
attribute latitude max_value float 90.0
attribute latitude min_value float -90.0
attribute latitude missing_value float -1.0E34
attribute latitude name String LAT
attribute latitude note_01 String UNCERTAINTY=+/-0.001 deg
attribute latitude plot_lab String LAT
attribute latitude standard_name String latitude
attribute latitude units String degrees_north
variable DUR_628   float  
attribute DUR_628 _FillValue float -1.0E34
attribute DUR_628 actual_range float 7.0, 7.0
attribute DUR_628 epic_code int 628
attribute DUR_628 gap_value float -99.0
attribute DUR_628 history String From NEAQS2004_AOD3803_v0_copy
attribute DUR_628 instr_id String *
attribute DUR_628 long_name String Sample Duration
attribute DUR_628 max_value float 59.0
attribute DUR_628 min_value float 0.0
attribute DUR_628 missing_value float -1.0E34
attribute DUR_628 name String DUR
attribute DUR_628 plot_lab String Duration
attribute DUR_628 units String min
variable TIM_627   float  
attribute TIM_627 _FillValue float -1.0E34
attribute TIM_627 actual_range float 188.5687, 223.8643
attribute TIM_627 epic_code int 627
attribute TIM_627 gap_value float -999.0
attribute TIM_627 generic_name String time
attribute TIM_627 history String From NEAQS2004_AOD3803_v0_copy
attribute TIM_627 instr_id String *
attribute TIM_627 long_name String Julian Days
attribute TIM_627 max_value float 365.9999
attribute TIM_627 min_value float 1.0
attribute TIM_627 missing_value float -1.0E34
attribute TIM_627 name String TIM
attribute TIM_627 plot_lab String DayOfYear
variable AOD1_1881   float  
attribute AOD1_1881 _FillValue float -1.0E34
attribute AOD1_1881 actual_range float 0.1335523, 1.312205
attribute AOD1_1881 epic_code int 1881
attribute AOD1_1881 gap_value float -999.0
attribute AOD1_1881 history String From NEAQS2004_AOD3803_v0_copy
attribute AOD1_1881 instr_id String Microtops sunphotometer, SN 3803
attribute AOD1_1881 long_name String Aerosol Optical Depth Ch-1
attribute AOD1_1881 max_value float 5.0
attribute AOD1_1881 min_value float 0.0
attribute AOD1_1881 missing_value float -1.0E34
attribute AOD1_1881 name String AOD1
attribute AOD1_1881 note_01 String UNCERTAINTY=+/-0.015 AOD
attribute AOD1_1881 plot_lab String AOD_380
variable AOD2_1882   float  
attribute AOD2_1882 _FillValue float -1.0E34
attribute AOD2_1882 actual_range float 0.06279518, 1.161401
attribute AOD2_1882 epic_code int 1882
attribute AOD2_1882 gap_value float -999.0
attribute AOD2_1882 history String From NEAQS2004_AOD3803_v0_copy
attribute AOD2_1882 instr_id String Microtops sunphotometer, SN 3803
attribute AOD2_1882 long_name String Aerosol Optical Depth Ch-2
attribute AOD2_1882 max_value float 5.0
attribute AOD2_1882 min_value float 0.0
attribute AOD2_1882 missing_value float -1.0E34
attribute AOD2_1882 name String AOD2
attribute AOD2_1882 note_01 String UNCERTAINTY=+/-0.015 AOD
attribute AOD2_1882 plot_lab String AOD_440
variable AOD3_1883   float  
attribute AOD3_1883 _FillValue float -1.0E34
attribute AOD3_1883 actual_range float 0.06166862, 1.049477
attribute AOD3_1883 epic_code int 1883
attribute AOD3_1883 gap_value float -999.0
attribute AOD3_1883 history String From NEAQS2004_AOD3803_v0_copy
attribute AOD3_1883 instr_id String Microtops sunphotometer, SN 3803
attribute AOD3_1883 long_name String Aerosol Optical Depth Ch-3
attribute AOD3_1883 max_value float 5.0
attribute AOD3_1883 min_value float 0.0
attribute AOD3_1883 missing_value float -1.0E34
attribute AOD3_1883 name String AOD3
attribute AOD3_1883 note_01 String UNCERTAINTY=+/-0.015 AOD
attribute AOD3_1883 plot_lab String AOD_500
variable AOD4_1884   float  
attribute AOD4_1884 _FillValue float -1.0E34
attribute AOD4_1884 actual_range float 0.04633693, 0.7840279
attribute AOD4_1884 epic_code int 1884
attribute AOD4_1884 gap_value float -999.0
attribute AOD4_1884 history String From NEAQS2004_AOD3803_v0_copy
attribute AOD4_1884 instr_id String Microtops sunphotometer, SN 3803
attribute AOD4_1884 long_name String Aerosol Optical Depth Ch-4
attribute AOD4_1884 max_value float 5.0
attribute AOD4_1884 min_value float 0.0
attribute AOD4_1884 missing_value float -1.0E34
attribute AOD4_1884 name String AOD4
attribute AOD4_1884 note_01 String UNCERTAINTY=+/-0.015 AOD
attribute AOD4_1884 plot_lab String AOD_675
variable AOD5_1885   float  
attribute AOD5_1885 _FillValue float -1.0E34
attribute AOD5_1885 actual_range float 0.03842801, 0.6471968
attribute AOD5_1885 epic_code int 1885
attribute AOD5_1885 gap_value float -999.0
attribute AOD5_1885 history String From NEAQS2004_AOD3803_v0_copy
attribute AOD5_1885 instr_id String Microtops sunphotometer, SN 3803
attribute AOD5_1885 long_name String Aerosol Optical Depth Ch-5
attribute AOD5_1885 max_value float 5.0
attribute AOD5_1885 min_value float 0.0
attribute AOD5_1885 missing_value float -1.0E34
attribute AOD5_1885 name String AOD5
attribute AOD5_1885 plot_lab String AOD_870
variable AODMZA_1880   float  
attribute AODMZA_1880 _FillValue float -1.0E34
attribute AODMZA_1880 actual_range float 21.002, 79.126
attribute AODMZA_1880 colorBarMaximum double 90.0
attribute AODMZA_1880 colorBarMinimum double -90.0
attribute AODMZA_1880 epic_code int 1880
attribute AODMZA_1880 gap_value float -999.0
attribute AODMZA_1880 history String From NEAQS2004_AOD3803_v0_copy
attribute AODMZA_1880 instr_id String Microtops sunphotometer and GPS
attribute AODMZA_1880 long_name String AOD measurement zenith angle
attribute AODMZA_1880 max_value float 90.0
attribute AODMZA_1880 min_value float 0.0
attribute AODMZA_1880 missing_value float -1.0E34
attribute AODMZA_1880 name String AODMZA
attribute AODMZA_1880 note_01 String UNCERTAINTY=+/-1 Deg
attribute AODMZA_1880 plot_lab String SolarZenithAng
attribute AODMZA_1880 units String degrees
variable AODAMS_1879   float  
attribute AODAMS_1879 _FillValue float -1.0E34
attribute AODAMS_1879 actual_range float 1.070362, 5.160078
attribute AODAMS_1879 epic_code int 1879
attribute AODAMS_1879 gap_value float -999.0
attribute AODAMS_1879 history String From NEAQS2004_AOD3803_v0_copy
attribute AODAMS_1879 instr_id String Microtops sunphotometer and GPS
attribute AODAMS_1879 long_name String AOD measurement airmass
attribute AODAMS_1879 max_value float 90.0
attribute AODAMS_1879 min_value float 0.0
attribute AODAMS_1879 missing_value float -1.0E34
attribute AODAMS_1879 name String AODAMS
attribute AODAMS_1879 note_01 String UNCERTAINTY=+/-0.01 AirMass
attribute AODAMS_1879 plot_lab String AirMass
attribute AODAMS_1879 units String atmosphere

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