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ERDDAP > info > productivity_viirs_noaa20_monthly

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 data       graph  M    files  public Primary Productivity, VIIRS NOAA20, Science Quality, Global, 4km, 2017-present, (Monthly
Composite)
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productivity_viirs_noaa20_monthly

The Dataset's Variables and Attributes

Row Type Variable Name Attribute Name Data Type Value
attribute NC_GLOBAL acknowledgement String This project was supported by the NOAA Office of Satellite Ground Services to CoastWatch West Coast Node via NOAA SWFSC.
attribute NC_GLOBAL cdm_data_type String Grid
attribute NC_GLOBAL Conventions String CF-1.10, ACDD-1.3, COARDS
attribute NC_GLOBAL creator_email String coastwatch.info at noaa.gov
attribute NC_GLOBAL creator_name String NOAA/STAR/NESDIS/CoastWatch/WestCoastNode
attribute NC_GLOBAL creator_url String https://coastwatch.pfeg.noaa.gov/
attribute NC_GLOBAL date_created String 2025-07-07T13:21:41Z
attribute NC_GLOBAL Easternmost_Easting double 179.9792
attribute NC_GLOBAL easternmost_longitude float 180.0
attribute NC_GLOBAL geospatial_lat_max double 89.97916
attribute NC_GLOBAL geospatial_lat_min double -89.97917
attribute NC_GLOBAL geospatial_lat_units String degrees_north
attribute NC_GLOBAL geospatial_lon_max double 179.9792
attribute NC_GLOBAL geospatial_lon_min double -179.9792
attribute NC_GLOBAL geospatial_lon_units String degrees_east
attribute NC_GLOBAL history String Chlorophyll a, PAR, and SST satellite data from VIIRS NOAA-20 were applied to the equation of Behrenfeld and Falkowski, 1997 to make daily composite files. The monthly file are means of the daily files.
attribute NC_GLOBAL id String productivity_noaa20_mday
attribute NC_GLOBAL infoUrl String coastwatch-wcn.github.io/primary-productivity
attribute NC_GLOBAL institution String NOAA CoastWatch West Coast Node
attribute NC_GLOBAL instrument String VIIRS
attribute NC_GLOBAL keywords String 2017-present, 2018-present, 4km, active, air, available, biosphere, carbon, chemistry, chla, chlor_a, chlorophyll, chlorophyll-a, coast, coastwatch, color, composite, concentration, data, day, downwelling, dynamics, earth, Earth Science > Biosphere > Ecological Dynamics > Ecosystem Functions > Primary Production, Earth Science > Biosphere > Vegetation > Carbon, Earth Science > Biosphere > Vegetation > Photosynthetically Active Radiation, Earth Science > Oceans > Ocean Chemistry > Carbon, Earth Science > Oceans > Ocean Chemistry > Chlorophyll, Earth Science > Oceans > Ocean Chemistry > Pigments > Chlorophyll, Earth Science > Oceans > Ocean Optics > Photosynthetically Available Radiation, Earth Science > Oceans > Ocean Temperature > Sea Surface Temperature, ecological, ecosystem, flux, functions, global, image, imager, imager/radiometer, imaging, infrared, latitude, longitude, mapped, mass, mass_concentration_of_chlorophyll_in_sea_water, net, net_primary_productivity_of_carbon, noaa, noaa-20, noaa20, node, ocean, ocean color, oceans, optics, par, photon, photosynthetic, photosynthetically, pigments, present, primary, production, productivity, quality, radiation, radiometer, science, science quality, sea, sea_surface_temperature, seawater, smi, sst, standard, suite, surface, surface_downwelling_photosynthetic_photon_flux_in_air, temperature, time, vegetation, viirs, visible, water, west, west coast node
attribute NC_GLOBAL keywords_vocabulary String NASA Global Change Master Directory (GCMD) Science Keywords
attribute NC_GLOBAL license String The data may be used and redistributed for free but is not intended
for legal use, since it may contain inaccuracies. Neither the data
Contributor, ERD, NOAA, nor the United States Government, nor any
of their employees or contractors, makes any warranty, express or
implied, including warranties of merchantability and fitness for a
particular purpose, or assumes any legal liability for the accuracy,
completeness, or usefulness, of this information.
attribute NC_GLOBAL map_projection String Equidistant Cylindrical
attribute NC_GLOBAL naming_authority String griddap/erddap/gov.noaa.pfeg.coastwatch
attribute NC_GLOBAL northernmost_latitude float 90.0
attribute NC_GLOBAL Northernmost_Northing double 89.97916
attribute NC_GLOBAL platform String NOAA-20
attribute NC_GLOBAL processing_level String L3 Mapped
attribute NC_GLOBAL product_name String VIIRS NOAA-20 Primary Productivity
attribute NC_GLOBAL project String CoastWatch Primary Productivity Project
attribute NC_GLOBAL publisher_email String erd.data at noaa.gov
attribute NC_GLOBAL publisher_name String NOAA/NMFS/SWFSC/ITDS/ERD, NOAA/NESDIS/STAR/CoastWatch/West Coast
attribute NC_GLOBAL publisher_url String https://coastwatch.pfeg.noaa.gov/
attribute NC_GLOBAL reference String M.J. Behrenfeld and P. G. Falkowski, Photosynthetic rates derived from satellite-based chlorophyll concentration, Limnol. Oceanogr. 42(l), 1997. 1-20
attribute NC_GLOBAL source String satellite observations from VIIRS NOAA-20
attribute NC_GLOBAL sourceUrl String (local files)
attribute NC_GLOBAL southernmost_latitude float -90.0
attribute NC_GLOBAL Southernmost_Northing double -89.97917
attribute NC_GLOBAL spatialResolution String 4.638312 km
attribute NC_GLOBAL standard_name_vocabulary String CF Standard Name Table v36
attribute NC_GLOBAL summary String The VIIRS NOAA-20 Primary Productivity product estimates net carbon fixation by phytoplankton in oceanic waters using the algorithm of Behrenfeld and P. G. Falkowski (1997). Data sources used as in the algorithm are chlorophyll a, SST and PAR values from VIIRS NOAA-20. The chlorophyll a, SST, and PAR data used as inputs to the algorithm are included in the dataset. Data are mapped to a NASA 4km Standard Mapped Image. The monthly data are means of the daily composites
attribute NC_GLOBAL sw_point_latitude float -89.97916
attribute NC_GLOBAL sw_point_longitude float -179.9792
attribute NC_GLOBAL temporal_range String month
attribute NC_GLOBAL testOutOfDate String now-116days
attribute NC_GLOBAL time_coverage_end String 2025-06-16T07:00:00Z
attribute NC_GLOBAL time_coverage_resolution String P1M
attribute NC_GLOBAL time_coverage_start String 2018-02-16T08:00:00Z
attribute NC_GLOBAL title String Primary Productivity, VIIRS NOAA20, Science Quality, Global, 4km, 2017-present, (Monthly Composite)
attribute NC_GLOBAL Westernmost_Easting double -179.9792
attribute NC_GLOBAL westernmost_longitude float -180.0
dimension time   double nValues=89, evenlySpaced=false, averageSpacing=30 days 10h 4m 46s
attribute time _CoordinateAxisType String Time
attribute time actual_range double 1.518768E9, 1.7500572E9
attribute time axis String T
attribute time calendar String Gregorian
attribute time coverage_content_type String coordinate
attribute time ioos_category String Time
attribute time long_name String Centered 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   float nValues=4320, evenlySpaced=false, averageSpacing=-0.04166666589488307
attribute latitude _CoordinateAxisType String Lat
attribute latitude actual_range float -89.97917, 89.97916
attribute latitude axis String Y
attribute latitude coverage_content_type String coordinate
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 float 90.0
attribute latitude valid_min float -90.0
dimension longitude   float nValues=8640, evenlySpaced=false, averageSpacing=0.041666674383609215
attribute longitude _CoordinateAxisType String Lon
attribute longitude actual_range float -179.9792, 179.9792
attribute longitude axis String X
attribute longitude coverage_content_type String coordinate
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 float 180.0
attribute longitude valid_min float -180.0
variable productivity   float time, latitude, longitude
attribute productivity _FillValue float -999.0
attribute productivity cell_methods String time:mean
attribute productivity colorBarMaximum double 2000.0
attribute productivity colorBarMinimum double 20.0
attribute productivity colorBarScale String Log
attribute productivity coverage_content_type String physicalMeasurement
attribute productivity ioos_category String Productivity
attribute productivity long_name String Net Primary Productivity Of Carbon
attribute productivity missing_value float -999.0
attribute productivity standard_name String net_primary_productivity_of_carbon
attribute productivity units String mg C m-2 day-1

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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