ERDDAP > info > IrregularTime2_8154_6d1f_180a

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			PMEL Atmospheric Chemistry NEAQAS2004 Experiment irregular 2 data		F   I   M	background			PMEL Atmospheric ...	IrregularTime2_8154_6d1f_180a

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	pmel.info at noaa.gov
attribute	NC_GLOBAL	creator_name	String	PMEL Atmospheric Chemistry
attribute	NC_GLOBAL	creator_url	String	https://www.pmel.noaa.gov/
attribute	NC_GLOBAL	DATA_TYPE	String	TIMESERIES-1D
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	http://saga.pmel.noaa.gov/
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	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	44.4689
attribute	NC_GLOBAL	PLATFORM	String	RONALD_H_BROWN
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

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.