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| Grid DAP Data | Sub- set | Table DAP Data | Make A Graph | W M S | Source Data Files | Acces- sible
| Title | Sum- mary | FGDC, ISO, Metadata | Back- ground Info | RSS | E | Institution | Dataset ID | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| data | graph | M | files | public | Primary Productivity, VIIRS NOAA20, NRT, Global, 4km, 2017-present (1 Day Composite) |
| F I M | background
| 
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| productivity_viirs_noaa20_daily_nrt |
| Row Type | Variable Name | Attribute Name | Data Type | Value |
|---|---|---|---|---|
| attribute | NC_GLOBAL | acknowledgement | String | The project was supported by funding from the Portfolio Management Branch of NESDIS and NOAA CoastWatch. |
| attribute | NC_GLOBAL | cdm_data_type | String | Grid |
| attribute | NC_GLOBAL | contributors | String | Dale Robinson, Isaac Shroeder, Ryan Vandermeulen, Jonathan Sherman, Jesse Espinoza, Madison Richardson |
| 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/West Coast Node |
| attribute | NC_GLOBAL | creator_type | String | institution |
| 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 | 180.0 |
| attribute | NC_GLOBAL | geospatial_lat_max | double | 90.0 |
| attribute | NC_GLOBAL | geospatial_lat_min | double | -90.0 |
| attribute | NC_GLOBAL | geospatial_lat_units | String | degrees_north |
| attribute | NC_GLOBAL | geospatial_lon_max | double | 180.0 |
| attribute | NC_GLOBAL | geospatial_lon_min | double | -180.0 |
| attribute | NC_GLOBAL | geospatial_lon_units | String | degrees_east |
| attribute | NC_GLOBAL | history | String | Chlorophyll a, PAR, and SST satellite data were applied to the equation of Behrenfeld and Falkowski, 1997. |
| attribute | NC_GLOBAL | id | String | productivity_noaa20_day_nrt |
| 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 | 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_Northing | double | 90.0 |
| attribute | NC_GLOBAL | platform | String | NOAA20 |
| attribute | NC_GLOBAL | processing_level | String | L3 Mapped |
| attribute | NC_GLOBAL | product_name | String | VIIRS NOAA20 Primary Productivity NRT |
| 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 |
| attribute | NC_GLOBAL | publisher_type | String | institution |
| attribute | NC_GLOBAL | publisher_url | String | https://coastwatch.pfeg.noaa.gov/ |
| attribute | NC_GLOBAL | references | String | M.J. Behrenfeld and P. G. Falkowski, Photosynthetic rates derived from satellite-based chlorophyll concentration, Limnol. Oceanogr. 42(l), 1997. 1-20. doi.org/10.1126/sciadv.aar3001 |
| attribute | NC_GLOBAL | source | String | satellite observations from VIIRS NOAA20 |
| attribute | NC_GLOBAL | sourceUrl | String | (local files) |
| attribute | NC_GLOBAL | Southernmost_Northing | double | -90.0 |
| 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 Visible and Infrared Imager/Radiometer Suite (VIIRS), NOAA20 Primary Productivity product estimates net carbon fixation by phytoplankton in oceanic waters using the algorithm of Behrenfeld and P. G. Falkowski (1997) with chlorophyll a and Photosynthetically Available Radiation (PAR) values from VIIRS NOAA20 and Sea Surface Temperature (SST) values from the NOAA Gridded Super-collated product as inputs. The science quality chlorophyll a, SST, and PAR data are included in the dataset. Data are mapped to a NASA 4km Standard Mapped Image. |
| attribute | NC_GLOBAL | temporal_range | String | day |
| attribute | NC_GLOBAL | testOutOfDate | String | now-10days |
| attribute | NC_GLOBAL | time_coverage_end | String | 2025-12-30T12:00:00Z |
| attribute | NC_GLOBAL | time_coverage_resolution | String | P1D |
| attribute | NC_GLOBAL | time_coverage_start | String | 2025-01-01T12:00:00Z |
| attribute | NC_GLOBAL | title | String | Primary Productivity, VIIRS NOAA20, NRT, Global, 4km, 2017-present (1 Day Composite) |
| attribute | NC_GLOBAL | Westernmost_Easting | double | -180.0 |
| dimension | time | double | nValues=363, evenlySpaced=false, averageSpacing=1 day 0h 3m 59s | |
| attribute | time | _CoordinateAxisType | String | Time |
| attribute | time | actual_range | double | 1.7357328E9, 1.767096E9 |
| 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 | 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=-0.041676313961565174 | |
| attribute | latitude | _CoordinateAxisType | String | Lat |
| attribute | latitude | actual_range | float | -90.0, 90.0 |
| 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=0.04167148975575877 | |
| attribute | longitude | _CoordinateAxisType | String | Lon |
| attribute | longitude | actual_range | float | -180.0, 180.0 |
| 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 | chlor_a | float | time, latitude, longitude | |
| attribute | chlor_a | _FillValue | float | -999.0 |
| attribute | chlor_a | cell_methods | String | time:mean |
| attribute | chlor_a | colorBarMaximum | double | 30.0 |
| attribute | chlor_a | colorBarMinimum | double | 0.03 |
| attribute | chlor_a | colorBarScale | String | Log |
| attribute | chlor_a | coverage_content_type | String | physicalMeasurement |
| attribute | chlor_a | ioos_category | String | Ocean Color |
| attribute | chlor_a | long_name | String | Chlorophyll a |
| attribute | chlor_a | missing_value | float | -999.0 |
| attribute | chlor_a | standard_name | String | mass_concentration_of_chlorophyll_in_sea_water |
| attribute | chlor_a | units | String | mg m-3 |
| variable | par | float | time, latitude, longitude | |
| attribute | par | _FillValue | float | -999.0 |
| attribute | par | cell_methods | String | time:mean |
| attribute | par | colorBarMaximum | double | 100.0 |
| attribute | par | colorBarMinimum | double | 0.0 |
| attribute | par | coverage_content_type | String | physicalMeasurement |
| attribute | par | ioos_category | String | Other |
| attribute | par | long_name | String | Photosynthetically Active Radiation |
| attribute | par | missing_value | float | -999.0 |
| attribute | par | standard_name | String | surface_downwelling_photosynthetic_photon_flux_in_air |
| attribute | par | units | String | mol m-2 day-1 |
| attribute | par | valid_max | float | 100.0 |
| attribute | par | valid_min | float | 0.0 |
| variable | sea_surface_temperature | float | time, latitude, longitude | |
| attribute | sea_surface_temperature | _FillValue | float | -999.0 |
| attribute | sea_surface_temperature | cell_methods | String | time:mean |
| attribute | sea_surface_temperature | colorBarMaximum | double | 40.0 |
| attribute | sea_surface_temperature | colorBarMinimum | double | 0.0 |
| attribute | sea_surface_temperature | comment | String | NOAA Gridded Super-collated SST, L3 product_version V4.9.0 |
| attribute | sea_surface_temperature | coverage_content_type | String | physicalMeasurement |
| attribute | sea_surface_temperature | ioos_category | String | Temperature |
| attribute | sea_surface_temperature | long_name | String | Sea Surface Temperature |
| attribute | sea_surface_temperature | missing_value | float | -999.0 |
| attribute | sea_surface_temperature | standard_name | String | sea_surface_temperature |
| attribute | sea_surface_temperature | units | String | degree_C |
| attribute | sea_surface_temperature | valid_max | float | 50.0 |
| attribute | sea_surface_temperature | valid_min | float | -2.0 |
| 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.