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ERDDAP > info > netpp_trends_viirssnpp_and_modisaqua

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 data       graph  M    files  public Temporal Trends, Primary Productivity, VIIRS S-NPP, MODIS Aqua, Global, 9km, 2013 to 2022.    ?   F   I   M   background (external link) RSS Subscribe
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netpp_trends_viirssnpp_and_modisaqua

The Dataset's Variables and Attributes

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 contributor String Dale Robinson, Isaac Schroeder, Madison Richardson, Ryan Vandermeulen, Jonathan Sherman, Jesse Espinoza
attribute NC_GLOBAL contributor_role String project management, development, production, development, development, production
attribute NC_GLOBAL Conventions String CF-1.10, COARDS, ACDD-1.3
attribute NC_GLOBAL creator_email String erd.data at noaa.gov
attribute NC_GLOBAL creator_name String NOAA CoastWatch West Coast Node
attribute NC_GLOBAL creator_type String institution
attribute NC_GLOBAL creator_url String https://coastwatch.pfeg.noaa.gov/ (external link)
attribute NC_GLOBAL date_created String 2025-04-09T09:07:56Z
attribute NC_GLOBAL Easternmost_Easting double 179.9583
attribute NC_GLOBAL geospatial_lat_max double 89.95834
attribute NC_GLOBAL geospatial_lat_min double -89.95834
attribute NC_GLOBAL geospatial_lat_units String degrees_north
attribute NC_GLOBAL geospatial_lon_max double 179.9583
attribute NC_GLOBAL geospatial_lon_min double -179.9583
attribute NC_GLOBAL geospatial_lon_units String degrees_east
attribute NC_GLOBAL history String Slope was calculated for each pixel location in the global grid from multi-year, monthly (9 km) primary productivity data. The probability that each slope was not different from zero was also determined. Calculations were run only on pixel timeseries where greater than 50% of the pixels contained data (50% of # of years times 12).
attribute NC_GLOBAL id String netpp_trends_viirssnpp_and_modisaqua
attribute NC_GLOBAL infoUrl String https://coastwatch.pfeg.noaa.gov/ (external link)
attribute NC_GLOBAL institution String NOAA/NESDIS/STAR/CoastWatch/West Coast
attribute NC_GLOBAL instrument String VIIRS, MODIS
attribute NC_GLOBAL keywords String 9km, active, aqua, aquatic, available, biosphere, chemistry, chlorophyll, coast, coastwatch, data, dynamics, earth, Earth Science > Biosphere > Ecological Dynamics > Ecosystem Functions > Primary Production, Earth Science > Biosphere > Ecosystems > Aquatic Ecosystems > Plankton > Phytoplankton, Earth Science > Oceans > Ocean Chemistry > Chlorophyll, Earth Science > Oceans > Ocean Optics > Photosynthetically Active Radiation, Earth Science > Oceans > Ocean Temperature > Sea Surface Temperature, ecological, ecosystem, ecosystems, environmental, functions, global, imager, imager/radiometer, imaging, information, infrared, latitude, level, linear, longitude, moderate, modis, modis_beta, modis_n, modis_pval, nasa, national, nesdis, noaa, npp, number, number_of_observations, observations, ocean, oceans, optics, orbiting, par, partnership, photosynthetically, phytoplankton, plankton, polar, polar-orbiting, primary, primary production, primary productivity, production, productivity, radiation, radiometer, regression, resolution, s-npp, satellite, science, sea, sea_surface_temperature, service, significance, slopes, spectroradiometer, sst, star, suite, surface, temperature, temporal, trends, used, viirs, viirs_beta, viirs_n, viirs_pval, visible, 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 geographic
attribute NC_GLOBAL naming_authority String gov.noaa.pfeg.coastwatch
attribute NC_GLOBAL Northernmost_Northing double 89.95834
attribute NC_GLOBAL platform String S-NPP, Aqua
attribute NC_GLOBAL proj4_string String +proj=eqc +lat_ts=0 +lat_0=0 +x_0=0 +y_0=0 +ellps=WGS84 +datum=WGS84 +units=m +no_defs +lon_0=0.000000
attribute NC_GLOBAL project String NOAA CoastWatch Interim Primary Productivity
attribute NC_GLOBAL publisher_name String NOAA/NMFS/SWFSC/ERD, NOAA/NESDIS/STAR/CoastWatch/West Coast Node
attribute NC_GLOBAL publisher_type String group
attribute NC_GLOBAL publisher_url String https://coastwatch.pfeg.noaa.gov (external link)
attribute NC_GLOBAL references String Melina et al. (2017) https://doi.org/10.1016/j.rse.2017.03.039 (external link), Behrenfeld and Falkowski (1997) https://doi.org/10.4319/lo.1997.42.1.0001 (external link)
attribute NC_GLOBAL source String S-NPP
attribute NC_GLOBAL sourceUrl String (local files)
attribute NC_GLOBAL Southernmost_Northing double -89.95834
attribute NC_GLOBAL spatialResolution String 9.28 km
attribute NC_GLOBAL standard_name_vocabulary String CF Standard Name Table v70
attribute NC_GLOBAL summary String Temporal trends for primary productivity derived for Visible and Infrared Imager/Radiometer Suite (VIIRS) S-National Polar-orbiting Partnership (NPP) and Moderate Resolution Imaging Spectroradiometer (MODIS) Aqua. Tends are reported as the slopes of linear regressions. Monthly, global primary productivity fields from January 2013 to December 2022 were derived from 9km chlorophyll, photosynthetically active radiation, and sea surface temperature data obtained from NASA. The number of observations and the level of significance (computed from a t-test) of the trends are also reported.
attribute NC_GLOBAL time_coverage_resolution String P10Y
attribute NC_GLOBAL title String Temporal Trends, Primary Productivity, VIIRS S-NPP, MODIS Aqua, Global, 9km, 2013 to 2022.
attribute NC_GLOBAL Westernmost_Easting double -179.9583
dimension latitude   double nValues=2160, evenlySpaced=false, averageSpacing=-0.08333333950903196
attribute latitude _CoordinateAxisType String Lat
attribute latitude actual_range double -89.95834, 89.95834
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 double 90.0
attribute latitude valid_min double -90.0
dimension longitude   double nValues=4320, evenlySpaced=false, averageSpacing=0.0833333178976615
attribute longitude _CoordinateAxisType String Lon
attribute longitude actual_range double -179.9583, 179.9583
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 double 180.0
attribute longitude valid_min double -180.0
variable modis_beta   float latitude, longitude
attribute modis_beta _FillValue float -999.0
attribute modis_beta colorBarMaximum double 25.0
attribute modis_beta colorBarMinimum double -25.0
attribute modis_beta colorBarPalette String RedWhiteBlue
attribute modis_beta coverage_content_type String modelResult
attribute modis_beta ioos_category String Other
attribute modis_beta long_name String Slopes of MODIS Linear Regression
attribute modis_beta missing_value float -999.0
attribute modis_beta source String NOAA CoastWatch West Coast Node
attribute modis_beta units String mg C m-2 d-1 y-1
variable modis_pval   float latitude, longitude
attribute modis_pval _FillValue float -999.0
attribute modis_pval colorBarMaximum double 1.0
attribute modis_pval colorBarMinimum double 0.0
attribute modis_pval colorBarPalette String KT_dense
attribute modis_pval coverage_content_type String modelResult
attribute modis_pval ioos_category String Other
attribute modis_pval long_name String Level of Significance for the Slopes of the MODIS Linear Regression
attribute modis_pval missing_value float -999.0
attribute modis_pval source String NOAA CoastWatch West Coast Node
variable modis_n   float latitude, longitude
attribute modis_n _FillValue float -999.0
attribute modis_n colorBarMaximum double 120.0
attribute modis_n colorBarMinimum double 0.0
attribute modis_n colorBarPalette String KT_deep
attribute modis_n coverage_content_type String modelResult
attribute modis_n ioos_category String Other
attribute modis_n long_name String Number of Observations Used for MODIS Linear Regression.
attribute modis_n missing_value float -999.0
attribute modis_n source String NOAA CoastWatch West Coast Node
attribute modis_n standard_name String number_of_observations
variable viirs_beta   float latitude, longitude
attribute viirs_beta _FillValue float -999.0
attribute viirs_beta colorBarMaximum double 25.0
attribute viirs_beta colorBarMinimum double -25.0
attribute viirs_beta colorBarPalette String RedWhiteBlue
attribute viirs_beta coverage_content_type String modelResult
attribute viirs_beta ioos_category String Other
attribute viirs_beta long_name String Slopes of Linear Regression for VIIRS Data
attribute viirs_beta missing_value float -999.0
attribute viirs_beta source String NOAA CoastWatch West Coast Node
attribute viirs_beta units String mg C m-2 d-1 y-1
variable viirs_pval   float latitude, longitude
attribute viirs_pval _FillValue float -999.0
attribute viirs_pval colorBarMaximum double 1.0
attribute viirs_pval colorBarMinimum double 0.0
attribute viirs_pval colorBarPalette String KT_dense
attribute viirs_pval coverage_content_type String modelResult
attribute viirs_pval ioos_category String Other
attribute viirs_pval long_name String Level of Significance for the Slopes of the VIIRS Linear Regression
attribute viirs_pval missing_value float -999.0
attribute viirs_pval source String NOAA CoastWatch West Coast Node
variable viirs_n   float latitude, longitude
attribute viirs_n _FillValue float -999.0
attribute viirs_n colorBarMaximum double 120.0
attribute viirs_n colorBarMinimum double 0.0
attribute viirs_n colorBarPalette String KT_deep
attribute viirs_n coverage_content_type String modelResult
attribute viirs_n ioos_category String Other
attribute viirs_n long_name String Number of Observations Used for the VIIRS Linear Regression.
attribute viirs_n missing_value float -999.0
attribute viirs_n source String NOAA CoastWatch West Coast Node
attribute viirs_n standard_name String number_of_observations

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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