ERDDAP > info > SOCATv2021_qrtrdeg_gridded_coast_monthly

Grid DAP Data	Sub- set	Table DAP Data	Make A Graph	W M S	Source Data Files	Acces- sible	Title	Sum- mary	FGDC, ISO, Metadata	Back- ground Info	RSS	E mail	Institution	Dataset ID
data			graph	M	files	public	Global Ocean, Gridded In Situ reprocessed carbon observations, SOCATv2021 (quarter-degree coastal)		F   I   M	background			PMEL, NOAA	SOCATv2021_qrtrdeg_gridded_coast_monthly

The Dataset's Variables and Attributes

Row Type	Variable Name	Attribute Name	Data Type	Value
attribute	NC_GLOBAL	_NCProperties	String	version=2,netcdf=4.6.3,hdf5=1.10.5
attribute	NC_GLOBAL	caution	String	NO INTERPOLATION WAS PERFORMED. SIGNIFICANT BIASES ARE PRESENT IN THESE GRIDDED RESULTS DUE TO THE ARBITRARY AND SPARSE LOCATIONS OF DATA VALUES IN BOTH SPACE AND TIME.
attribute	NC_GLOBAL	cdm_data_type	String	Grid
attribute	NC_GLOBAL	Conventions	String	CF-1.6
attribute	NC_GLOBAL	Easternmost_Easting	double	179.875
attribute	NC_GLOBAL	geospatial_lat_max	double	89.875
attribute	NC_GLOBAL	geospatial_lat_min	double	-89.875
attribute	NC_GLOBAL	geospatial_lat_resolution	double	0.25
attribute	NC_GLOBAL	geospatial_lat_units	String	degrees_north
attribute	NC_GLOBAL	geospatial_lon_max	double	179.875
attribute	NC_GLOBAL	geospatial_lon_min	double	-179.875
attribute	NC_GLOBAL	geospatial_lon_resolution	double	0.25
attribute	NC_GLOBAL	geospatial_lon_units	String	degrees_east
attribute	NC_GLOBAL	history	String	FERRET V7.62 (optimized) 26-May-21
attribute	NC_GLOBAL	infoUrl	String	https://www.socat.info/
attribute	NC_GLOBAL	institution	String	PMEL, NOAA
attribute	NC_GLOBAL	keywords	String	all, average, carbon, cell, center, circulation, coast_count_ncruise, coast_fco2_ave_unwtd, coast_fco2_ave_weighted, coast_fco2_count_nobs, coast_fco2_max_unwtd, coast_fco2_min_unwtd, coast_fco2_std_unwtd, coast_fco2_std_weighted, coast_lat_offset_unwtd, coast_lon_offset_unwtd, coast_salinity_ave_unwtd, coast_salinity_ave_weighted, coast_salinity_count_nobs, coast_salinity_max_unwtd, coast_salinity_min_unwtd, coast_salinity_std_unwtd, coast_salinity_std_weighted, coast_sst_ave_unwtd, coast_sst_ave_weighted, coast_sst_count_nobs, coast_sst_max_unwtd, coast_sst_min_unwtd, coast_sst_std_unwtd, coast_sst_std_weighted, control, cruise, cruises, data, density, depth, dev, earth, Earth Science > Oceans > Ocean Temperature > Sea Surface Temperature, Earth Science > Oceans > Salinity/Density > Salinity, environmental, experiment, fco2, global, gridded, laboratory, latitude, longitude, marine, max, mean, min, noaa, number, obs, observations, ocean, oceans, offset, pacific, per, pmel, practical, profiler, quality, reprocessed, salinity, salinity-temperature-depth, science, sea, sea_surface_temperature, sea_water_practical_salinity, seawater, situ, socatv2019, sst, std, surface, temperature, tmnth, unweighted, valid, water, weighted, woce, world, xlon, ylat
attribute	NC_GLOBAL	keywords_vocabulary	String	GCMD Science Keywords
attribute	NC_GLOBAL	license	String	The Surface Ocean CO2 Atlas (SOCAT) is an international effort, endorsed by the International Ocean Carbon Coordination Project (IOCCP), the Surface Ocean Lower Atmosphere Study (SOLAS) and the Integrated Marine Biosphere Research (IMBeR) program, to deliver a uniformly quality-controlled surface ocean CO2 database. The many researchers and funding agencies responsible for the collection of data and quality control are thanked for their contributions to SOCAT
attribute	NC_GLOBAL	Northernmost_Northing	double	89.875
attribute	NC_GLOBAL	references	String	http://www.socat.info/
attribute	NC_GLOBAL	SOCAT_Notes	String	SOCAT gridded v2021 26-May-2021
attribute	NC_GLOBAL	sourceUrl	String	(local files)
attribute	NC_GLOBAL	Southernmost_Northing	double	-89.875
attribute	NC_GLOBAL	standard_name_vocabulary	String	CF Standard Name Table v55
attribute	NC_GLOBAL	summary	String	Global Ocean - Gridded In Situ reprocessed carbon observations - SOCATv2021. Surface Ocean Carbon Atlas (SOCAT) Gridded (binned) SOCAT observations, with a spatial grid of 1x1 degree and yearly in time. The gridded fields are computed from the monthly 1-degree gridded data, which uses only SOCAT datasets with Quality Control (QC) flags of A through D and SOCAT data points flagged with World Ocean Circulation Experiment (WOCE) flag values of 2. This yearly data is computed using data from the start to the end of each year as described in the summary attribute of each variable.
attribute	NC_GLOBAL	time_coverage_end	String	2020-12-16T12:00:00Z
attribute	NC_GLOBAL	time_coverage_start	String	1970-01-16T12:00:00Z
attribute	NC_GLOBAL	title	String	Global Ocean, Gridded In Situ reprocessed carbon observations, SOCATv2021 (quarter-degree coastal)
attribute	NC_GLOBAL	Westernmost_Easting	double	-179.875
dimension	time		double	nValues=612, evenlySpaced=false, averageSpacing=30 days 10h 29m 16s
attribute	time	_CoordinateAxisType	String	Time
attribute	time	actual_range	double	1339200.0, 1.60812E9
attribute	time	axis	String	T
attribute	time	ioos_category	String	Time
attribute	time	long_name	String	TMNTH
attribute	time	source_name	String	tmnth
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
dimension	latitude		double	nValues=720, evenlySpaced=true, averageSpacing=0.25
attribute	latitude	_CoordinateAxisType	String	Lat
attribute	latitude	actual_range	double	-89.875, 89.875
attribute	latitude	axis	String	Y
attribute	latitude	ioos_category	String	Location
attribute	latitude	long_name	String	Latitude
attribute	latitude	point_spacing	String	even
attribute	latitude	source_name	String	ylat
attribute	latitude	standard_name	String	latitude
attribute	latitude	units	String	degrees_north
dimension	longitude		double	nValues=1440, evenlySpaced=true, averageSpacing=0.25
attribute	longitude	_CoordinateAxisType	String	Lon
attribute	longitude	actual_range	double	-179.875, 179.875
attribute	longitude	axis	String	X
attribute	longitude	ioos_category	String	Location
attribute	longitude	long_name	String	Longitude
attribute	longitude	modulo	double	360.0
attribute	longitude	point_spacing	String	even
attribute	longitude	source_name	String	xlon
attribute	longitude	standard_name	String	longitude
attribute	longitude	units	String	degrees_east
variable	coast_count_ncruise		float	time, latitude, longitude
attribute	coast_count_ncruise	_FillValue	float	-1.0E34
attribute	coast_count_ncruise	colorBarMaximum	double	100.0
attribute	coast_count_ncruise	colorBarMinimum	double	0.0
attribute	coast_count_ncruise	history	String	From SOCAT_tracks_gridded_monthly_quarterdeg_count_ncruise
attribute	coast_count_ncruise	long_name	String	Number of cruises
attribute	coast_count_ncruise	missing_value	float	-1.0E34
attribute	coast_count_ncruise	summary	String	Number of cruises containing observations in the grid cell.
attribute	coast_count_ncruise	units	String	count
variable	coast_fco2_count_nobs		float	time, latitude, longitude
attribute	coast_fco2_count_nobs	_FillValue	float	-1.0E34
attribute	coast_fco2_count_nobs	colorBarMaximum	double	100.0
attribute	coast_fco2_count_nobs	colorBarMinimum	double	0.0
attribute	coast_fco2_count_nobs	history	String	From SOCAT_tracks_gridded_monthly_quarterdeg_fco2_count_nobs
attribute	coast_fco2_count_nobs	long_name	String	Number of fco2 obs
attribute	coast_fco2_count_nobs	missing_value	float	-1.0E34
attribute	coast_fco2_count_nobs	summary	String	Total number of observations in the grid cell.
attribute	coast_fco2_count_nobs	units	String	count
variable	coast_fco2_ave_unwtd		float	time, latitude, longitude
attribute	coast_fco2_ave_unwtd	_FillValue	float	-1.0E34
attribute	coast_fco2_ave_unwtd	history	String	From SOCAT_tracks_gridded_monthly_quarterdeg_fco2_ave_unwtd
attribute	coast_fco2_ave_unwtd	long_name	String	fCO2 mean - unweighted all obs
attribute	coast_fco2_ave_unwtd	missing_value	float	-1.0E34
attribute	coast_fco2_ave_unwtd	summary	String	Arithmetic mean of all fco2 recomputed values found in the grid cell.
attribute	coast_fco2_ave_unwtd	units	String	uatm
variable	coast_fco2_ave_weighted		float	time, latitude, longitude
attribute	coast_fco2_ave_weighted	_FillValue	float	-1.0E34
attribute	coast_fco2_ave_weighted	history	String	From SOCAT_tracks_gridded_monthly_quarterdeg_fco2_ave_weighted
attribute	coast_fco2_ave_weighted	long_name	String	fCO2 mean - per cruise weighted
attribute	coast_fco2_ave_weighted	missing_value	float	-1.0E34
attribute	coast_fco2_ave_weighted	summary	String	Mean of fco2 recomputed computed by calculating the arithmetic mean value for each cruise passing through the cell and then averaging these cruises.
attribute	coast_fco2_ave_weighted	units	String	uatm
variable	coast_fco2_max_unwtd		float	time, latitude, longitude
attribute	coast_fco2_max_unwtd	_FillValue	float	-1.0E34
attribute	coast_fco2_max_unwtd	history	String	From SOCAT_tracks_gridded_monthly_quarterdeg_fco2_max_unwtd
attribute	coast_fco2_max_unwtd	long_name	String	fCO2 max
attribute	coast_fco2_max_unwtd	missing_value	float	-1.0E34
attribute	coast_fco2_max_unwtd	summary	String	Maximum value of fco2 recomputed observed in the grid cell.
attribute	coast_fco2_max_unwtd	units	String	uatm
variable	coast_fco2_min_unwtd		float	time, latitude, longitude
attribute	coast_fco2_min_unwtd	_FillValue	float	-1.0E34
attribute	coast_fco2_min_unwtd	history	String	From SOCAT_tracks_gridded_monthly_quarterdeg_fco2_min_unwtd
attribute	coast_fco2_min_unwtd	long_name	String	fCO2 min
attribute	coast_fco2_min_unwtd	missing_value	float	-1.0E34
attribute	coast_fco2_min_unwtd	summary	String	Minimum value of fco2 recomputed observed in the grid cell.
attribute	coast_fco2_min_unwtd	units	String	uatm
variable	coast_fco2_std_unwtd		float	time, latitude, longitude
attribute	coast_fco2_std_unwtd	_FillValue	float	-1.0E34
attribute	coast_fco2_std_unwtd	history	String	From SOCAT_tracks_gridded_monthly_quarterdeg_fco2_std_unwtd
attribute	coast_fco2_std_unwtd	long_name	String	fCO2 std dev - unweighted all obs
attribute	coast_fco2_std_unwtd	missing_value	float	-1.0E34
attribute	coast_fco2_std_unwtd	summary	String	The standard deviation of fco2 recomputed computed from the unweighted mean.
attribute	coast_fco2_std_unwtd	units	String	uatm
variable	coast_fco2_std_weighted		float	time, latitude, longitude
attribute	coast_fco2_std_weighted	_FillValue	float	-1.0E34
attribute	coast_fco2_std_weighted	history	String	From SOCAT_tracks_gridded_monthly_quarterdeg_fco2_std_weighted
attribute	coast_fco2_std_weighted	long_name	String	fCO2 std dev - per cruise weighted
attribute	coast_fco2_std_weighted	missing_value	float	-1.0E34
attribute	coast_fco2_std_weighted	summary	String	A weighted standard deviation of fco2 recomputed computed to account for the differing variance estimates for each cruise passing through the cell. The statistical technique is described at http://wapedia.mobi/en/Weighted_mean#7.
attribute	coast_fco2_std_weighted	units	String	uatm
variable	coast_sst_count_nobs		float	time, latitude, longitude
attribute	coast_sst_count_nobs	_FillValue	float	-1.0E34
attribute	coast_sst_count_nobs	colorBarMaximum	double	100.0
attribute	coast_sst_count_nobs	colorBarMinimum	double	0.0
attribute	coast_sst_count_nobs	history	String	From SOCAT_tracks_gridded_monthly_quarterdeg_sst_count_nobs
attribute	coast_sst_count_nobs	long_name	String	Number of valid sst obs
attribute	coast_sst_count_nobs	missing_value	float	-1.0E34
attribute	coast_sst_count_nobs	summary	String	Total number of observations in the grid cell.
attribute	coast_sst_count_nobs	units	String	count
variable	coast_sst_ave_unwtd		float	time, latitude, longitude
attribute	coast_sst_ave_unwtd	_FillValue	float	-1.0E34
attribute	coast_sst_ave_unwtd	colorBarMaximum	double	32.0
attribute	coast_sst_ave_unwtd	colorBarMinimum	double	0.0
attribute	coast_sst_ave_unwtd	history	String	From SOCAT_tracks_gridded_monthly_quarterdeg_sst_ave_unwtd
attribute	coast_sst_ave_unwtd	long_name	String	SST mean - unweighted all obs
attribute	coast_sst_ave_unwtd	missing_value	float	-1.0E34
attribute	coast_sst_ave_unwtd	standard_name	String	sea_surface_temperature
attribute	coast_sst_ave_unwtd	summary	String	Arithmetic mean of all sst values found in the grid cell.
attribute	coast_sst_ave_unwtd	units	String	degree_C
variable	coast_sst_ave_weighted		float	time, latitude, longitude
attribute	coast_sst_ave_weighted	_FillValue	float	-1.0E34
attribute	coast_sst_ave_weighted	colorBarMaximum	double	32.0
attribute	coast_sst_ave_weighted	colorBarMinimum	double	0.0
attribute	coast_sst_ave_weighted	history	String	From SOCAT_tracks_gridded_monthly_quarterdeg_sst_ave_weighted
attribute	coast_sst_ave_weighted	long_name	String	SST mean - per cruise weighted
attribute	coast_sst_ave_weighted	missing_value	float	-1.0E34
attribute	coast_sst_ave_weighted	standard_name	String	sea_surface_temperature
attribute	coast_sst_ave_weighted	summary	String	Mean of sst computed by calculating the arithmetic mean value for each cruise passing through the cell and then averaging these cruises.
attribute	coast_sst_ave_weighted	units	String	degree_C
variable	coast_sst_max_unwtd		float	time, latitude, longitude
attribute	coast_sst_max_unwtd	_FillValue	float	-1.0E34
attribute	coast_sst_max_unwtd	colorBarMaximum	double	32.0
attribute	coast_sst_max_unwtd	colorBarMinimum	double	0.0
attribute	coast_sst_max_unwtd	history	String	From SOCAT_tracks_gridded_monthly_quarterdeg_sst_max_unwtd
attribute	coast_sst_max_unwtd	long_name	String	SST max
attribute	coast_sst_max_unwtd	missing_value	float	-1.0E34
attribute	coast_sst_max_unwtd	standard_name	String	sea_surface_temperature
attribute	coast_sst_max_unwtd	summary	String	Maximum value of sst observed in the grid cell.
attribute	coast_sst_max_unwtd	units	String	degree_C
variable	coast_sst_min_unwtd		float	time, latitude, longitude
attribute	coast_sst_min_unwtd	_FillValue	float	-1.0E34
attribute	coast_sst_min_unwtd	colorBarMaximum	double	32.0
attribute	coast_sst_min_unwtd	colorBarMinimum	double	0.0
attribute	coast_sst_min_unwtd	history	String	From SOCAT_tracks_gridded_monthly_quarterdeg_sst_min_unwtd
attribute	coast_sst_min_unwtd	long_name	String	SST min
attribute	coast_sst_min_unwtd	missing_value	float	-1.0E34
attribute	coast_sst_min_unwtd	standard_name	String	sea_surface_temperature
attribute	coast_sst_min_unwtd	summary	String	Minimum value of sst observed in the grid cell.
attribute	coast_sst_min_unwtd	units	String	degree_C
variable	coast_sst_std_unwtd		float	time, latitude, longitude
attribute	coast_sst_std_unwtd	_FillValue	float	-1.0E34
attribute	coast_sst_std_unwtd	colorBarMaximum	double	32.0
attribute	coast_sst_std_unwtd	colorBarMinimum	double	0.0
attribute	coast_sst_std_unwtd	history	String	From SOCAT_tracks_gridded_monthly_quarterdeg_sst_std_unwtd
attribute	coast_sst_std_unwtd	long_name	String	SST std dev - unweighted all obs
attribute	coast_sst_std_unwtd	missing_value	float	-1.0E34
attribute	coast_sst_std_unwtd	standard_name	String	sea_surface_temperature
attribute	coast_sst_std_unwtd	summary	String	The standard deviation of sst computed from the unweighted mean.
attribute	coast_sst_std_unwtd	units	String	degree_C
variable	coast_sst_std_weighted		float	time, latitude, longitude
attribute	coast_sst_std_weighted	_FillValue	float	-1.0E34
attribute	coast_sst_std_weighted	colorBarMaximum	double	32.0
attribute	coast_sst_std_weighted	colorBarMinimum	double	0.0
attribute	coast_sst_std_weighted	history	String	From SOCAT_tracks_gridded_monthly_quarterdeg_sst_std_weighted
attribute	coast_sst_std_weighted	long_name	String	SST std dev - per cruise weighted
attribute	coast_sst_std_weighted	missing_value	float	-1.0E34
attribute	coast_sst_std_weighted	standard_name	String	sea_surface_temperature
attribute	coast_sst_std_weighted	summary	String	A weighted standard deviation of sst computed to account for the differing variance estimates for each cruise passing through the cell. The statistical technique is described at http://wapedia.mobi/en/Weighted_mean#7.
attribute	coast_sst_std_weighted	units	String	degree_C
variable	coast_salinity_count_nobs		float	time, latitude, longitude
attribute	coast_salinity_count_nobs	_FillValue	float	-1.0E34
attribute	coast_salinity_count_nobs	colorBarMaximum	double	100.0
attribute	coast_salinity_count_nobs	colorBarMinimum	double	0.0
attribute	coast_salinity_count_nobs	history	String	From SOCAT_tracks_gridded_monthly_quarterdeg_salinity_count_nobs
attribute	coast_salinity_count_nobs	long_name	String	Number of valid salinity obs
attribute	coast_salinity_count_nobs	missing_value	float	-1.0E34
attribute	coast_salinity_count_nobs	summary	String	Total number of observations in the grid cell.
attribute	coast_salinity_count_nobs	units	String	count
variable	coast_salinity_ave_unwtd		float	time, latitude, longitude
attribute	coast_salinity_ave_unwtd	_FillValue	float	-1.0E34
attribute	coast_salinity_ave_unwtd	colorBarMaximum	double	37.0
attribute	coast_salinity_ave_unwtd	colorBarMinimum	double	32.0
attribute	coast_salinity_ave_unwtd	history	String	From SOCAT_tracks_gridded_monthly_quarterdeg_salinity_ave_unwtd
attribute	coast_salinity_ave_unwtd	long_name	String	Salinity mean - unweighted all obs
attribute	coast_salinity_ave_unwtd	missing_value	float	-1.0E34
attribute	coast_salinity_ave_unwtd	standard_name	String	sea_water_practical_salinity
attribute	coast_salinity_ave_unwtd	summary	String	Arithmetic mean of all salinity values found in the grid cell.
attribute	coast_salinity_ave_unwtd	units	String	PSU
variable	coast_salinity_ave_weighted		float	time, latitude, longitude
attribute	coast_salinity_ave_weighted	_FillValue	float	-1.0E34
attribute	coast_salinity_ave_weighted	colorBarMaximum	double	37.0
attribute	coast_salinity_ave_weighted	colorBarMinimum	double	32.0
attribute	coast_salinity_ave_weighted	history	String	From SOCAT_tracks_gridded_monthly_quarterdeg_salinity_ave_weighted
attribute	coast_salinity_ave_weighted	long_name	String	Salinity mean - per cruise weighted
attribute	coast_salinity_ave_weighted	missing_value	float	-1.0E34
attribute	coast_salinity_ave_weighted	standard_name	String	sea_water_practical_salinity
attribute	coast_salinity_ave_weighted	summary	String	Mean of salinity computed by calculating the arithmetic mean value for each cruise passing through the cell and then averaging these cruises.
attribute	coast_salinity_ave_weighted	units	String	PSU
variable	coast_salinity_max_unwtd		float	time, latitude, longitude
attribute	coast_salinity_max_unwtd	_FillValue	float	-1.0E34
attribute	coast_salinity_max_unwtd	colorBarMaximum	double	37.0
attribute	coast_salinity_max_unwtd	colorBarMinimum	double	32.0
attribute	coast_salinity_max_unwtd	history	String	From SOCAT_tracks_gridded_monthly_quarterdeg_salinity_max_unwtd
attribute	coast_salinity_max_unwtd	long_name	String	Salinity max
attribute	coast_salinity_max_unwtd	missing_value	float	-1.0E34
attribute	coast_salinity_max_unwtd	standard_name	String	sea_water_practical_salinity
attribute	coast_salinity_max_unwtd	summary	String	Maximum value of salinity observed in the grid cell.
attribute	coast_salinity_max_unwtd	units	String	PSU
variable	coast_salinity_min_unwtd		float	time, latitude, longitude
attribute	coast_salinity_min_unwtd	_FillValue	float	-1.0E34
attribute	coast_salinity_min_unwtd	colorBarMaximum	double	37.0
attribute	coast_salinity_min_unwtd	colorBarMinimum	double	32.0
attribute	coast_salinity_min_unwtd	history	String	From SOCAT_tracks_gridded_monthly_quarterdeg_salinity_min_unwtd
attribute	coast_salinity_min_unwtd	long_name	String	Salinity min
attribute	coast_salinity_min_unwtd	missing_value	float	-1.0E34
attribute	coast_salinity_min_unwtd	standard_name	String	sea_water_practical_salinity
attribute	coast_salinity_min_unwtd	summary	String	Minimum value of salinity observed in the grid cell.
attribute	coast_salinity_min_unwtd	units	String	PSU
variable	coast_salinity_std_unwtd		float	time, latitude, longitude
attribute	coast_salinity_std_unwtd	_FillValue	float	-1.0E34
attribute	coast_salinity_std_unwtd	colorBarMaximum	double	37.0
attribute	coast_salinity_std_unwtd	colorBarMinimum	double	32.0
attribute	coast_salinity_std_unwtd	history	String	From SOCAT_tracks_gridded_monthly_quarterdeg_salinity_std_unwtd
attribute	coast_salinity_std_unwtd	long_name	String	Salinity std dev - unweighted all obs
attribute	coast_salinity_std_unwtd	missing_value	float	-1.0E34
attribute	coast_salinity_std_unwtd	standard_name	String	sea_water_practical_salinity
attribute	coast_salinity_std_unwtd	summary	String	The standard deviation of salinity computed from the unweighted mean.
attribute	coast_salinity_std_unwtd	units	String	PSU
variable	coast_salinity_std_weighted		float	time, latitude, longitude
attribute	coast_salinity_std_weighted	_FillValue	float	-1.0E34
attribute	coast_salinity_std_weighted	colorBarMaximum	double	37.0
attribute	coast_salinity_std_weighted	colorBarMinimum	double	32.0
attribute	coast_salinity_std_weighted	history	String	From SOCAT_tracks_gridded_monthly_quarterdeg_salinity_std_weighted
attribute	coast_salinity_std_weighted	long_name	String	Salinity std dev - per cruise weighted
attribute	coast_salinity_std_weighted	missing_value	float	-1.0E34
attribute	coast_salinity_std_weighted	standard_name	String	sea_water_practical_salinity
attribute	coast_salinity_std_weighted	summary	String	A weighted standard deviation of salinity computed to account for the differing variance estimates for each cruise passing through the cell. The statistical technique is described at http://wapedia.mobi/en/Weighted_mean#7.
attribute	coast_salinity_std_weighted	units	String	PSU
variable	coast_lat_offset_unwtd		float	time, latitude, longitude
attribute	coast_lat_offset_unwtd	_FillValue	float	-1.0E34
attribute	coast_lat_offset_unwtd	history	String	From SOCAT_tracks_gridded_monthly_quarterdeg_lat_offset_unwtd
attribute	coast_lat_offset_unwtd	long_name	String	Latitude average offset from cell center
attribute	coast_lat_offset_unwtd	missing_value	float	-1.0E34
attribute	coast_lat_offset_unwtd	summary	String	The arithmetic average of latitude offsets from the grid cell center for all observations in the grid cell. The value of this offset can vary from -0.5 to 0.5. A value of zero indicates that the computed fco2 mean values are representative of the grid cell center position.
attribute	coast_lat_offset_unwtd	units	String	Deg N
variable	coast_lon_offset_unwtd		float	time, latitude, longitude
attribute	coast_lon_offset_unwtd	_FillValue	float	-1.0E34
attribute	coast_lon_offset_unwtd	history	String	From SOCAT_tracks_gridded_monthly_quarterdeg_lon_offset_unwtd
attribute	coast_lon_offset_unwtd	long_name	String	Longitude average offset from cell center
attribute	coast_lon_offset_unwtd	missing_value	float	-1.0E34
attribute	coast_lon_offset_unwtd	summary	String	The arithmetic average of longitude offsets from the grid cell center for all observations in the grid cell. The value of this offset can vary from -0.5 to 0.5. A value of zero indicates that the computed fco2 mean values are representative of the grid cell center position.
attribute	coast_lon_offset_unwtd	units	String	Deg E

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.