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ERDDAP > info > bio_remote_sensing_modis_aqua_chl_poly4

Title Sum-
Institution Dataset ID
 data       graph  M    files  NWA MODIS-AQUA CHL_POLY4 2023-07-31    ?   F   I   M   background (external link) RSS Subscribe 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
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 (external link)
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 (external link)
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 (external link)
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
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,
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 (external link)
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.

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