ERDDAP > info > bio_remote_sensing_modis_aqua_chl_poly4

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	files	NWA MODIS-AQUA CHL_POLY4 2023-07-31		F   I   M	background			dfo_bio	bio_remote_sensing_modis_aqua_chl_poly4

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	Conventions	String	CF-1.6, COARDS, ACDD-1.3
attribute	NC_GLOBAL	creator_email	String	Stephanie.Clay at dfo-mpo.gc.ca
attribute	NC_GLOBAL	creator_group	String	SOPhyE (Satellite Ocean colour and Phytoplankton Ecology group), Ocean Monitoring and Modelling Section
attribute	NC_GLOBAL	creator_name	String	Stephanie Clay
attribute	NC_GLOBAL	creator_type	String	person
attribute	NC_GLOBAL	creator_url	String	https://bio-rsg.github.io/
attribute	NC_GLOBAL	date_created	String	2024-02-26T13:42:26Z
attribute	NC_GLOBAL	Easternmost_Easting	double	-42.020833333333336
attribute	NC_GLOBAL	geographic_crs_epsg_code	String	EPSG:4326
attribute	NC_GLOBAL	geospatial_lat_max	double	81.97916666666667
attribute	NC_GLOBAL	geospatial_lat_min	double	39.020833333333336
attribute	NC_GLOBAL	geospatial_lat_resolution	double	0.04166666666666667
attribute	NC_GLOBAL	geospatial_lat_units	String	degrees_north
attribute	NC_GLOBAL	geospatial_lon_max	double	-42.020833333333336
attribute	NC_GLOBAL	geospatial_lon_min	double	-94.97916666666667
attribute	NC_GLOBAL	geospatial_lon_resolution	double	0.04166666666666667
attribute	NC_GLOBAL	geospatial_lon_units	String	degrees_east
attribute	NC_GLOBAL	history	String	Created with make_mapped_netcdf.R. Input data are 4km-resolution level-3 binned remote sensing reflectances (Rrs) from NASA OBPG, subset to the region of interest and used in conjunction with the most recent set of regionally-tuned parameters to generate the level-3 binned product. The data is then mapped using a Plate Carrée projection and an area-weighted mean for pixels with multiple overlapping bins.
attribute	NC_GLOBAL	infoUrl	String	https://bio-rsg.github.io/
attribute	NC_GLOBAL	institution	String	dfo_bio
attribute	NC_GLOBAL	keywords	String	agencies, agencies-non-us, aqua, atlantic, based, bio, ca/dfo/bio, canada, chemistry, chl, chlor_a, chlorophyll, chlorophyll-a, coefficients, color, concentration, data, department, dfo, earth, Earth Science > Oceans > Ocean Chemistry > Chlorophyll, Earth Science > Oceans > Ocean Chemistry > Pigments > Chlorophyll, Earth Science > Oceans > Ocean Optics > Chlorophyll > Chlorophyll Concentration, fisheries, government, imaging, latitude, longitude, mass, mass_concentration_of_chlorophyll_a_in_sea_water, model, moderate, modis, modis-aqua, non, northwest, nwa, observation, ocean, ocean color, oceans, optics, optimized, pigments, platforms, Platforms > Space-based Platforms > Earth Observation Satellites > Aqua, poly4, poly4v2, providers, Providers > GOVERNMENT AGENCIES-NON-US > CANADA > CA/DFO/BIO, resolution, satellites, science, sea, seawater, space, space-based, spectroradiometer, time, water, with
attribute	NC_GLOBAL	keywords_vocabulary	String	GCMD Science Keywords
attribute	NC_GLOBAL	license	String	https://creativecommons.org/licenses/by/4.0/
attribute	NC_GLOBAL	map_projection	String	Equidistant Cylindrical (Plate Carrée)
attribute	NC_GLOBAL	mission	String	AQUA
attribute	NC_GLOBAL	Northernmost_Northing	double	81.97916666666667
attribute	NC_GLOBAL	platform	String	AQUA
attribute	NC_GLOBAL	POLY4v2_coefficients	String	0.49318,-3.86911,-0.83267,1.19094,0.9436
attribute	NC_GLOBAL	processing_level	String	L3 Mapped
attribute	NC_GLOBAL	product_name	String	AQUA_MODIS.20230731.L3b.DAY.CHL_POLY4.NWA.mapped.nc
attribute	NC_GLOBAL	projected_crs_epsg_code	String	EPSG:4087
attribute	NC_GLOBAL	references	String	Clay, S.; Peña, A.; DeTracey, B.; Devred, E. Evaluation of Satellite-Based Algorithms to Retrieve Chlorophyll-a Concentration in the Canadian Atlantic and Pacific Oceans. Remote Sens. 2019, 11, 2609.
attribute	NC_GLOBAL	region	String	Northwest Atlantic
attribute	NC_GLOBAL	reprocessing	String	R2022.0
attribute	NC_GLOBAL	sensor	String	MODIS
attribute	NC_GLOBAL	source	String	POLY4v2 chlorophyll-a generated using remote sensing reflectance (Rrs) data from NASA Ocean Biology Processing Group (OBPG, https://oceancolor.gsfc.nasa.gov)
attribute	NC_GLOBAL	sourceUrl	String	(local files)
attribute	NC_GLOBAL	Southernmost_Northing	double	39.020833333333336
attribute	NC_GLOBAL	spatial_resolution	String	4.64 km at equator
attribute	NC_GLOBAL	standard_name_vocabulary	String	CF Standard Name Table v79
attribute	NC_GLOBAL	summary	String	NWA Moderate Resolution Imaging Spectroradiometer (MODIS)-AQUA CHL_POLY4
attribute	NC_GLOBAL	temporal_range	String	day
attribute	NC_GLOBAL	time	String	2023-07-31
attribute	NC_GLOBAL	time_coverage_end	String	2023-07-31T00:00:00Z
attribute	NC_GLOBAL	time_coverage_start	String	2002-07-04T00:00:00Z
attribute	NC_GLOBAL	title	String	NWA MODIS-AQUA CHL_POLY4 2023-07-31
attribute	NC_GLOBAL	tools	String	https://github.com/BIO-RSG/oceancolouR
attribute	NC_GLOBAL	Westernmost_Easting	double	-94.97916666666667
dimension	time		double	nValues=7670, evenlySpaced=false, averageSpacing=1 day 0h 5m 15s
attribute	time	_CoordinateAxisType	String	Time
attribute	time	actual_range	double	1.0257408E9, 1.6907616E9
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=1032, evenlySpaced=true, averageSpacing=-0.04166666666666667
attribute	latitude	_CoordinateAxisType	String	Lat
attribute	latitude	actual_range	double	39.020833333333336, 81.97916666666667
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
dimension	longitude		double	nValues=1272, evenlySpaced=true, averageSpacing=0.04166666666666667
attribute	longitude	_CoordinateAxisType	String	Lon
attribute	longitude	actual_range	double	-94.97916666666667, -42.020833333333336
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
variable	chlor_a		float	time, latitude, longitude
attribute	chlor_a	_FillValue	float	NaN
attribute	chlor_a	colorBarMaximum	double	30.0
attribute	chlor_a	colorBarMinimum	double	0.03
attribute	chlor_a	colorBarScale	String	Log
attribute	chlor_a	ioos_category	String	Ocean Color
attribute	chlor_a	long_name	String	Chlorophyll-a Concentration (POLY4v2 model with coefficients optimized to MODIS-AQUA and Northwest Atlantic)
attribute	chlor_a	standard_name	String	mass_concentration_of_chlorophyll_a_in_sea_water
attribute	chlor_a	units	String	mg m-3
attribute	chlor_a	valid_max	float	100.0
attribute	chlor_a	valid_min	float	0.0

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.