ERDDAP > info > esa-cci-kd-monthly-v6-0

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
data			graph	M		Kd490, ESA OC CCI - Monthly, 1997-2022. v6.0		F   I   M	background			Plymouth Marine L...	esa-cci-kd-monthly-v6-0

The Dataset's Variables and Attributes

Row Type	Variable Name	Attribute Name	Data Type	Value
attribute	NC_GLOBAL	cdm_data_type	String	Grid
attribute	NC_GLOBAL	comment	String	See summary attribute
attribute	NC_GLOBAL	Conventions	String	CF-1.7, COARDS, ACDD-1.3
attribute	NC_GLOBAL	creation_date	String	Tue Jan 31 12:15:15 2023
attribute	NC_GLOBAL	creator_email	String	help at esa-oceancolour-cci.org
attribute	NC_GLOBAL	creator_name	String	Plymouth Marine Laboratory
attribute	NC_GLOBAL	creator_url	String	https://esa-oceancolour-cci.org
attribute	NC_GLOBAL	date_created	String	2022-08-15T22:10:47Z
attribute	NC_GLOBAL	Easternmost_Easting	double	359.97916666666663
attribute	NC_GLOBAL	geospatial_lat_max	double	89.97916666666667
attribute	NC_GLOBAL	geospatial_lat_min	double	-89.97916666666666
attribute	NC_GLOBAL	geospatial_lat_resolution	double	0.041666666666666664
attribute	NC_GLOBAL	geospatial_lat_units	String	degrees_north
attribute	NC_GLOBAL	geospatial_lon_max	double	359.97916666666663
attribute	NC_GLOBAL	geospatial_lon_min	double	0.020833333333314386
attribute	NC_GLOBAL	geospatial_lon_resolution	double	0.041666666666666664
attribute	NC_GLOBAL	geospatial_lon_units	String	degrees_east
attribute	NC_GLOBAL	git_commit_hash	String	ef9b6f099ea56e816faba0c254a71b178180897f
attribute	NC_GLOBAL	history	String	Mon Feb 20 14:32:27 2023: ncatted -O -a geospatial_lon_max,global,o,f,360.0 ESACCI-OC-L3S-K_490-MERGED-1M_MONTHLY_4km_GEO_PML_KD490_Lee-202212-fv6.0-0-360.nc Mon Feb 20 14:32:27 2023: ncatted -O -a geospatial_lon_min,global,o,f,0.0 ESACCI-OC-L3S-K_490-MERGED-1M_MONTHLY_4km_GEO_PML_KD490_Lee-202212-fv6.0-0-360.nc Mon Feb 20 14:32:27 2023: ncatted -O -a valid_max,lon,o,f,359.9792 ESACCI-OC-L3S-K_490-MERGED-1M_MONTHLY_4km_GEO_PML_KD490_Lee-202212-fv6.0-0-360.nc Mon Feb 20 14:32:27 2023: ncatted -O -a valid_min,lon,o,f,0.02083 ESACCI-OC-L3S-K_490-MERGED-1M_MONTHLY_4km_GEO_PML_KD490_Lee-202212-fv6.0-0-360.nc Mon Feb 20 14:32:07 2023: ncap2 -O -s where(lon<0) lon=lon+360 ESACCI-OC-L3S-K_490-MERGED-1M_MONTHLY_4km_GEO_PML_KD490_Lee-202212-fv6.0-0-360.nc ESACCI-OC-L3S-K_490-MERGED-1M_MONTHLY_4km_GEO_PML_KD490_Lee-202212-fv6.0-0-360.nc Mon Feb 20 14:31:46 2023: ncks -O --msa_usr_rdr -d lon,0.0,180.0 -d lon,-180.0,0.0 ESACCI-OC-L3S-K_490-MERGED-1M_MONTHLY_4km_GEO_PML_KD490_Lee-202212-fv6.0.nc ESACCI-OC-L3S-K_490-MERGED-1M_MONTHLY_4km_GEO_PML_KD490_Lee-202212-fv6.0-0-360.nc Source data were: ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_4km_GEO_PML_OCx_QAA-20221201-fv6.0.nc, ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_4km_GEO_PML_OCx_QAA-20221202-fv6.0.nc, ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_4km_GEO_PML_OCx_QAA-20221203-fv6.0.nc, ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_4km_GEO_PML_OCx_QAA-20221204-fv6.0.nc, ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_4km_GEO_PML_OCx_QAA-20221205-fv6.0.nc, ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_4km_GEO_PML_OCx_QAA-20221206-fv6.0.nc, ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_4km_GEO_PML_OCx_QAA-20221207-fv6.0.nc, ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_4km_GEO_PML_OCx_QAA-20221208-fv6.0.nc, ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_4km_GEO_PML_OCx_QAA-20221209-fv6.0.nc, ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_4km_GEO_PML_OCx_QAA-20221210-fv6.0.nc, ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_4km_GEO_PML_OCx_QAA-20221211-fv6.0.nc, ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_4km_GEO_PML_OCx_QAA-20221212-fv6.0.nc, ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_4km_GEO_PML_OCx_QAA-20221213-fv6.0.nc, ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_4km_GEO_PML_OCx_QAA-20221214-fv6.0.nc, ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_4km_GEO_PML_OCx_QAA-20221215-fv6.0.nc, ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_4km_GEO_PML_OCx_QAA-20221216-fv6.0.nc, ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_4km_GEO_PML_OCx_QAA-20221217-fv6.0.nc, ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_4km_GEO_PML_OCx_QAA-20221218-fv6.0.nc, ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_4km_GEO_PML_OCx_QAA-20221219-fv6.0.nc, ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_4km_GEO_PML_OCx_QAA-20221220-fv6.0.nc, ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_4km_GEO_PML_OCx_QAA-20221221-fv6.0.nc, ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_4km_GEO_PML_OCx_QAA-20221222-fv6.0.nc, ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_4km_GEO_PML_OCx_QAA-20221223-fv6.0.nc, ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_4km_GEO_PML_OCx_QAA-20221224-fv6.0.nc, ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_4km_GEO_PML_OCx_QAA-20221225-fv6.0.nc, ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_4km_GEO_PML_OCx_QAA-20221226-fv6.0.nc, ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_4km_GEO_PML_OCx_QAA-20221227-fv6.0.nc, ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_4km_GEO_PML_OCx_QAA-20221228-fv6.0.nc, ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_4km_GEO_PML_OCx_QAA-20221229-fv6.0.nc, ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_4km_GEO_PML_OCx_QAA-20221230-fv6.0.nc, ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_4km_GEO_PML_OCx_QAA-20221231-fv6.0.nc; netcdf_compositor_cci composites Rrs_412, Rrs_412_bias, Rrs_443, Rrs_443_bias, Rrs_490, Rrs_490_bias, Rrs_510, Rrs_510_bias, Rrs_560, Rrs_560_bias, Rrs_665, Rrs_665_bias, adg_412, adg_412_bias, adg_443, adg_443_bias, adg_490, adg_490_bias, adg_510, adg_510_bias, adg_560, adg_560_bias, adg_665, adg_665_bias, aph_412, aph_412_bias, aph_443, aph_443_bias, aph_490, aph_490_bias, aph_510, aph_510_bias, aph_560, aph_560_bias, aph_665, aph_665_bias, atot_412, atot_443, atot_490, atot_510, atot_560, atot_665, bbp_412, bbp_443, bbp_490, bbp_510, bbp_560, bbp_665, chlor_a, chlor_a_log10_bias, kd_490, kd_490_bias, water_class1, water_class10, water_class11, water_class12, water_class13, water_class14, water_class2, water_class3, water_class4, water_class5, water_class6, water_class7, water_class8, water_class9 with --mean, Rrs_412_rmsd, Rrs_443_rmsd, Rrs_490_rmsd, Rrs_510_rmsd, Rrs_560_rmsd, Rrs_665_rmsd, adg_412_rmsd, adg_443_rmsd, adg_490_rmsd, adg_510_rmsd, adg_560_rmsd, adg_665_rmsd, aph_412_rmsd, aph_443_rmsd, aph_490_rmsd, aph_510_rmsd, aph_560_rmsd, aph_665_rmsd, chlor_a_log10_rmsd, kd_490_rmsd with --root-mean-square, and MERIS_nobs, MODISA_nobs, OLCI-A_nobs, OLCI-B_nobs, SeaWiFS_nobs, VIIRS_nobs, total_nobs - with --total 1675169856 Subsetted from standardised_geo/ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1M_MONTHLY_4km_GEO_PML_OCx_QAA-202212-fv6.0.nc to only include variables MERIS_nobs_sum,MODISA_nobs_sum,OLCI-A_nobs_sum,OLCI-B_nobs_sum,SeaWiFS_nobs_sum,VIIRS_nobs_sum,crs,kd_490,kd_490_bias,kd_490_rmsd,lat,lon,time,total_nobs_sum
attribute	NC_GLOBAL	id	String	ESACCI-OC-L3S-K_490-MERGED-1M_MONTHLY_4km_GEO_PML_KD490_Lee-202212-fv6.0.nc
attribute	NC_GLOBAL	infoUrl	String	https://esa-oceancolour-cci.org/
attribute	NC_GLOBAL	institution	String	Plymouth Marine Laboratory
attribute	NC_GLOBAL	keywords	String	490nm, algorithm, aqua, area, attenuation, bbw, bias, bin, cci, cell, coefficient, colour, contributing, count, coverage, data, derived, difference, downwelling, earth, Earth Science > Oceans > Ocean Optics > Attenuation/Transmission, Earth Science > Oceans > Ocean Optics > Radiance, equation, esa, field, field-of-view, flux, following, gac, global, imager, imager/radiometer, imaging, infrared, kd_490, kd_490_bias, kd_490_rmsd, laboratory, lac, lee, local, marine, mean, meris, MERIS_nobs_sum, moderate, modis, MODISA_nobs_sum, number, observation, observations, ocean, ocean colour, oceans, olci, OLCI-A_nobs_sum, OLCI-B_nobs_sum, optical, optical properties, optics, plymouth, product, properties, radiance, radiative, radiometer, resolution, root, root-mean-square-difference, satellite, science, sea, sea-wide, seadas, seawater, seawifs, SeaWiFS_nobs_sum, sensor, sentinel, sentinel-3a, sentinel-3b, spectroradiometer, square, statistics, suite, time, total, total_nobs_sum, transmission, using, view, viirs, VIIRS_nobs_sum, visible, volume, volume_attenuation_coefficient_of_downwelling_radiative_flux_in_sea_water, water, wide, zhang
attribute	NC_GLOBAL	keywords_vocabulary	String	GCMD Science Keywords
attribute	NC_GLOBAL	license	String	ESA CCI Data Policy: free and open access. When referencing, please use: Ocean Colour Climate Change Initiative dataset, Version <Version Number>, European Space Agency, available online at https://esa-oceancolour-cci.org. We would also appreciate being notified of publications so that we can list them on the project website at https://esa-oceancolour-cci.org/?q=publications
attribute	NC_GLOBAL	naming_authority	String	uk.ac.pml
attribute	NC_GLOBAL	NCO	String	netCDF Operators version 4.7.5 (Homepage = http://nco.sf.net, Code = https://github.com/nco/nco)
attribute	NC_GLOBAL	nco_openmp_thread_number	int	1
attribute	NC_GLOBAL	netcdf_file_type	String	NETCDF4_CLASSIC
attribute	NC_GLOBAL	Northernmost_Northing	double	89.97916666666667
attribute	NC_GLOBAL	number_of_bands_used_to_classify	String	4
attribute	NC_GLOBAL	number_of_files_composited	int	31
attribute	NC_GLOBAL	number_of_optical_water_types	String	14
attribute	NC_GLOBAL	platform	String	Orbview-2,Aqua,Envisat,Suomi-NPP, Sentinel-3a, Sentinel-3b
attribute	NC_GLOBAL	processing_level	String	Level-3
attribute	NC_GLOBAL	product_version	String	6.0
attribute	NC_GLOBAL	project	String	Climate Change Initiative - European Space Agency
attribute	NC_GLOBAL	references	String	https://esa-oceancolour-cci.org/
attribute	NC_GLOBAL	sensor	String	SeaWiFS,MODIS,MERIS,VIIRS,OLCI
attribute	NC_GLOBAL	sensors_present	String	OLCIa OLCIb
attribute	NC_GLOBAL	source	String	NASA SeaWiFS L1A and L2 R2018.0 LAC and GAC, MODIS-Aqua L1A and L2 R2018.0, MERIS L1B 3rd reprocessing inc OCL corrections, NASA VIIRS L1A and L2 R2018.0, OLCI L1B
attribute	NC_GLOBAL	sourceUrl	String	(local files)
attribute	NC_GLOBAL	Southernmost_Northing	double	-89.97916666666666
attribute	NC_GLOBAL	spatial_resolution	String	4km nominal at equator
attribute	NC_GLOBAL	standard_name_vocabulary	String	CF Standard Name Table v70
attribute	NC_GLOBAL	summary	String	Data products generated by the Ocean Colour component of the European Space Agency Climate Change Initiative project. These files are monthly composites of merged sensor (MERIS, Moderate Resolution Imaging Spectroradiometer (MODIS) Aqua, Sea-Wide Field-of-View Sensor (SeaWiFS) Local Area Coverage (LAC) & Global Area Coverage (GAC), Visible and Infrared Imager/Radiometer Suite (VIIRS), OLCI) products. MODIS Aqua and SeaWiFS were band-shifted and bias-corrected to MERIS bands and values using a temporally and spatially varying scheme based on the overlap years of 2003-2007. VIIRS was band-shifted and bias-corrected in a second stage against the MODIS Rrs that had already been corrected to MERIS levels, for the overlap period 2012-2014; at the third stage Sentinel-3A OLCI was bias corrected against already corrected MODIS, for overlap period 2016-07-01 to 2019-06-30; at the fourth stage Sentinel-3B OLCI was bias corrected against already corrected Sentinel-3A OLCI, for overlap period 2018-07-01 to 2021-06-30. VIIRS, MODIS, SeaWiFS and MERIS Rrs were derived from a combination of NASA's l2gen (for basic sensor geometry corrections, etc) and HYGEOS POLYMER (for atmospheric correction). OLCI Rrs were sourced at L1b (already geometrically corrected) and processed with POLYMER. The Rrs were binned to a sinusoidal 4km level-3 grid, and later to 4km geographic projection, by Brockmann Consult's SNAP. Derived products were generally computed with the standard algorithms through SeaDAS. QAA IOPs were derived using the standard SeaDAS algorithm but with a modified backscattering table to match that used in the bandshifting. The final chlorophyll is a combination of OCI, OCI2, OC2 and OCx, depending on the water class memberships. Uncertainty estimates were added using the fuzzy water classifier and uncertainty estimation algorithm of Tim Moore as documented in Jackson et al (2017). and updated according to Jackson et al. (in prep).
attribute	NC_GLOBAL	time_coverage_duration	String	P1M
attribute	NC_GLOBAL	time_coverage_end	String	2022-12-01T00:00:00Z
attribute	NC_GLOBAL	time_coverage_resolution	String	P1M
attribute	NC_GLOBAL	time_coverage_start	String	1997-09-04T00:00:00Z
attribute	NC_GLOBAL	title	String	Kd490, ESA OC CCI - Monthly, 1997-2022. v6.0
attribute	NC_GLOBAL	tracking_id	String	f7c46c10-67de-460c-bdce-6de91ad32075
attribute	NC_GLOBAL	Westernmost_Easting	double	0.020833333333314386
dimension	time		double	nValues=304, evenlySpaced=false, averageSpacing=30 days 10h 13m 4s
attribute	time	_CoordinateAxisType	String	Time
attribute	time	actual_range	double	8.733312E8, 1.6698528E9
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
dimension	latitude		double	nValues=4320, evenlySpaced=true, averageSpacing=-0.041666666666666664
attribute	latitude	_CoordinateAxisType	String	Lat
attribute	latitude	actual_range	double	-89.97916666666666, 89.97916666666667
attribute	latitude	axis	String	Y
attribute	latitude	ioos_category	String	Location
attribute	latitude	long_name	String	Latitude
attribute	latitude	standard_name	String	latitude
attribute	latitude	units	String	degrees_north
attribute	latitude	valid_max	double	89.97916666666667
attribute	latitude	valid_min	double	-89.97916666666666
dimension	longitude		double	nValues=8640, evenlySpaced=true, averageSpacing=0.041666666666666664
attribute	longitude	_CoordinateAxisType	String	Lon
attribute	longitude	actual_range	double	0.020833333333314386, 359.97916666666663
attribute	longitude	axis	String	X
attribute	longitude	ioos_category	String	Location
attribute	longitude	long_name	String	Longitude
attribute	longitude	standard_name	String	longitude
attribute	longitude	units	String	degrees_east
attribute	longitude	valid_max	double	359.97918701171875
attribute	longitude	valid_min	double	0.020829999819397926
variable	kd_490		float	time, latitude, longitude
attribute	kd_490	_FillValue	float	NaN
attribute	kd_490	ancillary_variables	String	kd_490_rmsd kd_490_bias
attribute	kd_490	colorBarMaximum	double	5.0
attribute	kd_490	colorBarMinimum	double	0.01
attribute	kd_490	colorBarScale	String	Log
attribute	kd_490	ioos_category	String	Optical Properties
attribute	kd_490	long_name	String	Downwelling attenuation coefficient at 490nm, derived using Lee 2005 equation and bbw from Zhang 2009 (following the SeaDAS Kd_lee algorithm)
attribute	kd_490	parameter_vocab_uri	String	http://vocab.ndg.nerc.ac.uk/term/P071/19/CFSN0064
attribute	kd_490	standard_name	String	volume_attenuation_coefficient_of_downwelling_radiative_flux_in_sea_water
attribute	kd_490	units	String	m-1
attribute	kd_490	units_nonstandard	String	m^-1
attribute	kd_490	wavelength	int	490
variable	MERIS_nobs_sum		float	time, latitude, longitude
attribute	MERIS_nobs_sum	_FillValue	float	NaN
attribute	MERIS_nobs_sum	colorBarMaximum	double	100.0
attribute	MERIS_nobs_sum	colorBarMinimum	double	0.0
attribute	MERIS_nobs_sum	ioos_category	String	Statistics
attribute	MERIS_nobs_sum	long_name	String	Count of the number of observations from the MERIS sensor contributing to this bin cell
attribute	MERIS_nobs_sum	number_of_files_composited	int	31
variable	MODISA_nobs_sum		float	time, latitude, longitude
attribute	MODISA_nobs_sum	_FillValue	float	NaN
attribute	MODISA_nobs_sum	colorBarMaximum	double	100.0
attribute	MODISA_nobs_sum	colorBarMinimum	double	0.0
attribute	MODISA_nobs_sum	ioos_category	String	Statistics
attribute	MODISA_nobs_sum	long_name	String	Count of the number of observations from the MODIS (Aqua) sensor contributing to this bin cell
attribute	MODISA_nobs_sum	number_of_files_composited	int	31
variable	OLCI_A_nobs_sum		float	time, latitude, longitude
attribute	OLCI_A_nobs_sum	_FillValue	float	NaN
attribute	OLCI_A_nobs_sum	colorBarMaximum	double	100.0
attribute	OLCI_A_nobs_sum	colorBarMinimum	double	0.0
attribute	OLCI_A_nobs_sum	ioos_category	String	Statistics
attribute	OLCI_A_nobs_sum	long_name	String	Count of the number of observations from the OLCI (Sentinel-3a) sensor contributing to this bin cell
attribute	OLCI_A_nobs_sum	number_of_files_composited	int	31
variable	OLCI_B_nobs_sum		float	time, latitude, longitude
attribute	OLCI_B_nobs_sum	_FillValue	float	NaN
attribute	OLCI_B_nobs_sum	colorBarMaximum	double	100.0
attribute	OLCI_B_nobs_sum	colorBarMinimum	double	0.0
attribute	OLCI_B_nobs_sum	ioos_category	String	Statistics
attribute	OLCI_B_nobs_sum	long_name	String	Count of the number of observations from the OLCI (Sentinel-3b) sensor contributing to this bin cell
attribute	OLCI_B_nobs_sum	number_of_files_composited	int	31
variable	SeaWiFS_nobs_sum		float	time, latitude, longitude
attribute	SeaWiFS_nobs_sum	_FillValue	float	NaN
attribute	SeaWiFS_nobs_sum	colorBarMaximum	double	100.0
attribute	SeaWiFS_nobs_sum	colorBarMinimum	double	0.0
attribute	SeaWiFS_nobs_sum	ioos_category	String	Statistics
attribute	SeaWiFS_nobs_sum	long_name	String	Count of the number of observations from the SeaWiFS (GAC and LAC) sensor contributing to this bin cell
attribute	SeaWiFS_nobs_sum	number_of_files_composited	int	31
variable	VIIRS_nobs_sum		float	time, latitude, longitude
attribute	VIIRS_nobs_sum	_FillValue	float	NaN
attribute	VIIRS_nobs_sum	colorBarMaximum	double	100.0
attribute	VIIRS_nobs_sum	colorBarMinimum	double	0.0
attribute	VIIRS_nobs_sum	ioos_category	String	Statistics
attribute	VIIRS_nobs_sum	long_name	String	Count of the number of observations from the VIIRS sensor contributing to this bin cell
attribute	VIIRS_nobs_sum	number_of_files_composited	int	31
variable	kd_490_bias		float	time, latitude, longitude
attribute	kd_490_bias	_FillValue	float	NaN
attribute	kd_490_bias	colorBarMaximum	double	0.1
attribute	kd_490_bias	colorBarMinimum	double	0.0
attribute	kd_490_bias	comment	String	Uncertainty lookups derived from file: /data/datasets/CCI/v6.0-production/stage09b-uncertainty_tables/kd/cci_kd_bias.dat
attribute	kd_490_bias	ioos_category	String	Statistics
attribute	kd_490_bias	long_name	String	Bias of downwelling attenuation coefficient at 490 nm derived using Lee 2005 equation and bbw from Zhang 2009
attribute	kd_490_bias	references	String	https://esa-oceancolour-cci.org/?q=webfm_send/581
attribute	kd_490_bias	rel	String	uncertainty
attribute	kd_490_bias	units	String	m-1
attribute	kd_490_bias	units_nonstandard	String	m^-1
attribute	kd_490_bias	wavelength	int	490
variable	kd_490_rmsd		float	time, latitude, longitude
attribute	kd_490_rmsd	_FillValue	float	NaN
attribute	kd_490_rmsd	colorBarMaximum	double	0.1
attribute	kd_490_rmsd	colorBarMinimum	double	0.0
attribute	kd_490_rmsd	comment	String	Uncertainty lookups derived from file: /data/datasets/CCI/v6.0-production/stage09b-uncertainty_tables/kd/cci_kd_rmsd.dat
attribute	kd_490_rmsd	ioos_category	String	Statistics
attribute	kd_490_rmsd	long_name	String	Root-mean-square-difference of downwelling attenuation coefficient at 490 nm derived using Lee 2005 equation and bbw from Zhang 2009
attribute	kd_490_rmsd	references	String	https://esa-oceancolour-cci.org/?q=webfm_send/581
attribute	kd_490_rmsd	rel	String	uncertainty
attribute	kd_490_rmsd	units	String	m-1
attribute	kd_490_rmsd	units_nonstandard	String	m^-1
attribute	kd_490_rmsd	wavelength	int	490
variable	total_nobs_sum		float	time, latitude, longitude
attribute	total_nobs_sum	_FillValue	float	NaN
attribute	total_nobs_sum	colorBarMaximum	double	100.0
attribute	total_nobs_sum	colorBarMinimum	double	0.0
attribute	total_nobs_sum	ioos_category	String	Statistics
attribute	total_nobs_sum	long_name	String	Count of the total number of observations contributing to this bin cell
attribute	total_nobs_sum	number_of_files_composited	int	31

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.