netcdf classic (CDF-1) {
dimensions:
	time = UNLIMITED ; // (1 currently)
	lat = 644 ;
	lon = 1527 ;
// global attributes:
		:Conventions = "CF-1.7" ;
		:Metadata_Conventions = "Unidata Dataset Discovery v1.0" ;
		:cdm_data_type = "Grid" ;
		:comment = "See summary attribute" ;
		:creation_date = "20220922T211729Z" ;
		:creator_email = "help@esa-oceancolour-cci.org" ;
		:creator_name = "Plymouth Marine Laboratory" ;
		:creator_url = "http://esa-oceancolour-cci.org" ;
		:date_created = "20220922T211729Z" ;
		:geospatial_lat_max = 51.90104166666667 ;
		:geospatial_lat_min = 45.203125 ;
		:geospatial_lat_resolution = "0.0104166666666666666" ;
		:geospatial_lat_units = "decimal degrees north" ;
		:geospatial_lon_max = -55.40104166666667 ;
		:geospatial_lon_min = -71.296875 ;
		:geospatial_lon_resolution = "0.0104166666666666666" ;
		:geospatial_lon_units = "decimal degrees east" ;
		:geospatial_vertical_max = 0.0 ;
		:geospatial_vertical_min = 0.0 ;
		:git_commit_hash = "9ec7c5da2cc5f20ba7293eca598734f479a2fd70" ;
		:id = "ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_1km_GEO_PML_OCx_QAA-20200512-fv6.0_1km.nc" ;
		:institution = "Plymouth Marine Laboratory" ;
		:keywords = "satellite,observation,ocean,ocean colour" ;
		:keywords_vocabulary = "none" ;
		:license = "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 http://www.esa-oceancolour-cci.org.  We would also appreciate being notified of publications so that we can list them on the project website at http://www.esa-oceancolour-cci.org/?q=publications" ;
		:naming_authority = "uk.ac.pml" ;
		:number_of_bands_used_to_classify = "4" ;
		:number_of_optical_water_types = "14" ;
		:platform = "Orbview-2,Aqua,Envisat,Suomi-NPP, Sentinel-3a, Sentinel-3b" ;
		:processing_level = "Level-3" ;
		:product_version = "6.0_1km" ;
		:project = "Climate Change Initiative - European Space Agency" ;
		:references = "http://www.esa-oceancolour-cci.org/" ;
		:sensor = "SeaWiFS,MODIS,MERIS,VIIRS,OLCI" ;
		:sensors_present = " OLCIa OLCIb" ;
		:spatial_resolution = "1km nominal at equator" ;
		:standard_name_vocabulary = "NetCDF Climate and Forecast (CF) Metadata Conventions Version 1.7" ;
		:time_coverage_duration = "P1D" ;
		:time_coverage_end = "202005122359Z" ;
		:time_coverage_resolution = "P1D" ;
		:time_coverage_start = "202005120000Z" ;
		:title = "ESA CCI Ocean Colour Product" ;
		:NCO = "netCDF Operators version 4.7.5 (Homepage = http://nco.sf.net, Code = http://github.com/nco/nco)" ;
		:history = "Source data were: NASA OBPG SeaWiFS level1 R2018.0 LAC and GAC [A/C via l2gen], NASA OBPG VIIRS L1 R2018.0  [A/C via POLYMER], NASA OBPG MODIS Aqua L1 R2018.0 (A/C via POLYMER), ESA MERIS L1B (4th reprocessing inc OCL correction) [POLYMER v4.14]  and OLCI L1B [POLYMER v4.14]; Derived products were mainly produced with functions validated from the current NASA SeaDAS release and some custom implementations.  Uncertainty generation determined by the fuzzy classifier scheme of Tim Moore (2009) as updated by Jackson et al. (2017) and Jackson et al. (in prep)." ;
		:source = "NASA SeaWiFS  L1A and L2 R2018.0 LAC and GAC, MODIS-Aqua L1A and L2 R2018.0, MERIS L1B 4th reprocessing inc OCL corrections, NASA VIIRS L1A and L2 R2018.0, OLCI L1B" ;
		:summary = "Data products generated by the Ocean Colour component of the European Space Agency Climate Change Initiative project. These files are daily composites of merged sensor (MERIS, MODIS Aqua, SeaWiFS LAC & GAC, 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 1km level-3 grid, and later to 1km 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)." ;
		:tracking_id = "7783f01c-f576-45d5-9da7-007332a275f1" ;
		:History = (text block) ;
| Translated to CF-1.0 Conventions by Netcdf-Java CDM (CFGridWriter2)
| Original Dataset = /data/datasets/CCI/v6.0-1km-production/stage10-final_geographic/all_products/2020/ESACCI-OC-L3S-OC_PRODUCTS-MERGED-1D_DAILY_1km_GEO_PML_OCx_QAA-20200512-fv6.0_1km.nc; Translation Date = 2023-02-22T06:59:56.558Z
variables:
	float total_nobs(time, lat, lon) ;
		total_nobs:_FillValue = 0.0 ;
		total_nobs:long_name = "Count of the total number of observations contributing to this bin cell" ;
		total_nobs:_ChunkSizes = 1, 270, 270 ;
		total_nobs:coordinates = "time lat lon lat lon" ;
	int time(time) ;
		time:units = "days since 1970-01-01 00:00:00" ;
		time:axis = "T" ;
		time:standard_name = "time" ;
		time:_ChunkSizes = 1 ;
		time:calendar = "gregorian" ;
		time:_CoordinateAxisType = "Time" ;
	double lat(lat) ;
		lat:units = "degrees_north" ;
		lat:long_name = "latitude" ;
		lat:standard_name = "latitude" ;
		lat:valid_min = -89.99479166666666 ;
		lat:valid_max = 89.99479166666667 ;
		lat:axis = "Y" ;
		lat:_ChunkSizes = 270 ;
		lat:_CoordinateAxisType = "Lat" ;
	double lon(lon) ;
		lon:units = "degrees_east" ;
		lon:long_name = "longitude" ;
		lon:standard_name = "longitude" ;
		lon:valid_min = -179.99479166666666 ;
		lon:valid_max = 179.99479166666663 ;
		lon:axis = "X" ;
		lon:_ChunkSizes = 270 ;
		lon:_CoordinateAxisType = "Lon" ;
	float Rrs_412(time, lat, lon) ;
		Rrs_412:_FillValue = 9.96920997e+36 ;
		Rrs_412:ancillary_variables = "Rrs_412_rmsd Rrs_412_bias" ;
		Rrs_412:long_name = "Sea surface reflectance defined as the ratio of water-leaving radiance to surface irradiance at 412 nm." ;
		Rrs_412:parameter_vocab_uri = "http://vocab.ndg.nerc.ac.uk/term/P071/19/CFV13N26" ;
		Rrs_412:standard_name = "surface_ratio_of_upwelling_radiance_emerging_from_sea_water_to_downwelling_radiative_flux_in_air" ;
		Rrs_412:units = "sr-1" ;
		Rrs_412:units_nonstandard = "sr^-1" ;
		Rrs_412:wavelength = 412 ;
		Rrs_412:_ChunkSizes = 1, 270, 270 ;
		Rrs_412:coordinates = "time lat lon lat lon" ;
	float Rrs_443(time, lat, lon) ;
		Rrs_443:_FillValue = 9.96920997e+36 ;
		Rrs_443:ancillary_variables = "Rrs_443_rmsd Rrs_443_bias" ;
		Rrs_443:long_name = "Sea surface reflectance defined as the ratio of water-leaving radiance to surface irradiance at 443 nm." ;
		Rrs_443:parameter_vocab_uri = "http://vocab.ndg.nerc.ac.uk/term/P071/19/CFV13N26" ;
		Rrs_443:standard_name = "surface_ratio_of_upwelling_radiance_emerging_from_sea_water_to_downwelling_radiative_flux_in_air" ;
		Rrs_443:units = "sr-1" ;
		Rrs_443:units_nonstandard = "sr^-1" ;
		Rrs_443:wavelength = 443 ;
		Rrs_443:_ChunkSizes = 1, 270, 270 ;
		Rrs_443:coordinates = "time lat lon lat lon" ;
	float Rrs_490(time, lat, lon) ;
		Rrs_490:_FillValue = 9.96920997e+36 ;
		Rrs_490:ancillary_variables = "Rrs_490_rmsd Rrs_490_bias" ;
		Rrs_490:long_name = "Sea surface reflectance defined as the ratio of water-leaving radiance to surface irradiance at 490 nm." ;
		Rrs_490:parameter_vocab_uri = "http://vocab.ndg.nerc.ac.uk/term/P071/19/CFV13N26" ;
		Rrs_490:standard_name = "surface_ratio_of_upwelling_radiance_emerging_from_sea_water_to_downwelling_radiative_flux_in_air" ;
		Rrs_490:units = "sr-1" ;
		Rrs_490:units_nonstandard = "sr^-1" ;
		Rrs_490:wavelength = 490 ;
		Rrs_490:_ChunkSizes = 1, 270, 270 ;
		Rrs_490:coordinates = "time lat lon lat lon" ;
	float Rrs_510(time, lat, lon) ;
		Rrs_510:_FillValue = 9.96920997e+36 ;
		Rrs_510:ancillary_variables = "Rrs_510_rmsd Rrs_510_bias" ;
		Rrs_510:long_name = "Sea surface reflectance defined as the ratio of water-leaving radiance to surface irradiance at 510 nm." ;
		Rrs_510:parameter_vocab_uri = "http://vocab.ndg.nerc.ac.uk/term/P071/19/CFV13N26" ;
		Rrs_510:standard_name = "surface_ratio_of_upwelling_radiance_emerging_from_sea_water_to_downwelling_radiative_flux_in_air" ;
		Rrs_510:units = "sr-1" ;
		Rrs_510:units_nonstandard = "sr^-1" ;
		Rrs_510:wavelength = 510 ;
		Rrs_510:_ChunkSizes = 1, 270, 270 ;
		Rrs_510:coordinates = "time lat lon lat lon" ;
	float Rrs_560(time, lat, lon) ;
		Rrs_560:_FillValue = 9.96920997e+36 ;
		Rrs_560:ancillary_variables = "Rrs_560_rmsd Rrs_560_bias" ;
		Rrs_560:long_name = "Sea surface reflectance defined as the ratio of water-leaving radiance to surface irradiance at 560 nm." ;
		Rrs_560:parameter_vocab_uri = "http://vocab.ndg.nerc.ac.uk/term/P071/19/CFV13N26" ;
		Rrs_560:standard_name = "surface_ratio_of_upwelling_radiance_emerging_from_sea_water_to_downwelling_radiative_flux_in_air" ;
		Rrs_560:units = "sr-1" ;
		Rrs_560:units_nonstandard = "sr^-1" ;
		Rrs_560:wavelength = 560 ;
		Rrs_560:_ChunkSizes = 1, 270, 270 ;
		Rrs_560:coordinates = "time lat lon lat lon" ;
	float Rrs_665(time, lat, lon) ;
		Rrs_665:_FillValue = 9.96920997e+36 ;
		Rrs_665:ancillary_variables = "Rrs_665_rmsd Rrs_665_bias" ;
		Rrs_665:long_name = "Sea surface reflectance defined as the ratio of water-leaving radiance to surface irradiance at 665 nm." ;
		Rrs_665:parameter_vocab_uri = "http://vocab.ndg.nerc.ac.uk/term/P071/19/CFV13N26" ;
		Rrs_665:standard_name = "surface_ratio_of_upwelling_radiance_emerging_from_sea_water_to_downwelling_radiative_flux_in_air" ;
		Rrs_665:units = "sr-1" ;
		Rrs_665:units_nonstandard = "sr^-1" ;
		Rrs_665:wavelength = 665 ;
		Rrs_665:_ChunkSizes = 1, 270, 270 ;
		Rrs_665:coordinates = "time lat lon lat lon" ;
	float adg_443(time, lat, lon) ;
		adg_443:_FillValue = 9.96920997e+36 ;
		adg_443:long_name = "Absorption coefficient for dissolved and detrital material at 443 nm derived using the QAA model V6 (Lee et al 2014) as parameterised within SeaDAS." ;
		adg_443:paper_ref = "Lee, Z., et al. Update of the Quasi-Analytical Algorithm (QAA_v6) [R/OL]. International Ocean Color Group Software Report [2013-04-03]. http://www.ioccg.org/groups/Software-OCA/OAA_5.2014." ;
		adg_443:parameter_vocab_uri = "http://vocab.ndg.nerc.ac.uk/term/P071/19/CFSN0063" ;
		adg_443:standard_name = "volume_absorption_coefficient_of_radiative_flux_in_sea_water" ;
		adg_443:units = "m-1" ;
		adg_443:units_nonstandard = "m^-1" ;
		adg_443:wavelength = 443 ;
		adg_443:_ChunkSizes = 1, 270, 270 ;
		adg_443:coordinates = "time lat lon lat lon" ;
// time: first 18394, last 18394, count 1
// lat: first 51.90104166666667, last 45.203125, count 644
// lon: first -71.296875, last -55.40104166666667, count 1527
}