PolarWatch ERDDAP
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Dataset Title: | Kd490 (Gap-filled DINEOF), NOAA S-NPP NOAA-20 VIIRS and Copernicus S-3A OLCI, Science Quality, Global 9km, 2018-recent, Daily ![]() ![]() |
Institution: | NOAA NESDIS STAR (Dataset ID: nesdisNPPN20S3AkdSCIDINEOFDaily) |
Information: | Summary ![]() ![]() ![]() |
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Attributes { time { String _CoordinateAxisType "Time"; Float64 actual_range 1.5181776e+9, 1.6838064e+9; String axis "T"; String calendar "gregorian"; String ioos_category "Time"; String long_name "Time"; String standard_name "time"; String time_origin "01-JAN-1970 00:00:00"; String units "seconds since 1970-01-01T00:00:00Z"; } altitude { String _CoordinateAxisType "Height"; String _CoordinateZisPositive "up"; Float64 actual_range 0.0, 0.0; String axis "Z"; String ioos_category "Location"; String long_name "Altitude"; String positive "up"; String standard_name "altitude"; String units "m"; } latitude { String _CoordinateAxisType "Lat"; Float32 actual_range -89.95834, 89.95834; String axis "Y"; String ioos_category "Location"; String long_name "Latitude"; String source_name "lat"; String standard_name "latitude"; String units "degrees_north"; Float32 valid_max 90.0; Float32 valid_min -90.0; } longitude { String _CoordinateAxisType "Lon"; Float32 actual_range -179.9583, 179.9583; String axis "X"; String ioos_category "Location"; String long_name "Longitude"; String source_name "lon"; String standard_name "longitude"; String units "degrees_east"; Float32 valid_max 180.0; Float32 valid_min -180.0; } kd_490 { Float32 _FillValue -6.5534; Float64 colorBarMaximum 10.0; Float64 colorBarMinimum 0.01; String display_scale "log"; String ioos_category "Optical Properties"; String long_name "Diffuse attenuation coefficient at 490 nm, kd2 algorithm"; String references "Wang, M., S. Son, and L. W. Harding, Jr. (2009), Retrieval of diffuse attenuation coefficient in the Chesapeake Bay and turbid ocean regions for satellite ocean color applications, J. Geoph ys. Res. Oceans, 114, C10011"; String standard_name "diffuse_attenuation_coefficient_of_downwelling_radiative_flux_in_sea_water"; String units "m^-1"; Float32 valid_max 6.0; Float32 valid_min 0.01; } NC_GLOBAL { String _lastModified "2023-05-21T20:30:09.000Z"; String cdm_data_type "Grid"; String Conventions "CF-1.6 ACDD-1.3, COARDS"; String creator_email "coastwatch.info@noaa.gov"; String creator_name "NOAA CoastWatch"; String creator_type "institution"; String creator_url "https://coastwatch.noaa.gov"; String date_created "2023-05-21T20:30:09.000Z"; Float64 Easternmost_Easting 179.9583; Float64 geospatial_lat_max 89.95834; Float64 geospatial_lat_min -89.95834; Float64 geospatial_lat_resolution 0.08333333950903196; String geospatial_lat_units "degrees_north"; Float64 geospatial_lon_max 179.9583; Float64 geospatial_lon_min -179.9583; Float64 geospatial_lon_resolution 0.0833333178976615; String geospatial_lon_units "degrees_east"; Float64 geospatial_vertical_max 0.0; Float64 geospatial_vertical_min 0.0; String geospatial_vertical_positive "up"; String geospatial_vertical_units "m"; String grid_mapping_epsg_code "EPSG:4326"; Float32 grid_mapping_inverse_flattening 298.2572; Float32 grid_mapping_longitude_of_prime_meridian 0.0; String grid_mapping_name "latitude_longitude"; String grid_mapping_proj4_params "+proj=longlat +ellps=WGS84 +datum=WGS84 +no_defs"; Float32 grid_mapping_semi_major_axis 6378137.0; String history "/data/data369/hgu/ocssw/bin/l3mapgen par=/data/data652/coastwatch/oc/L3/scripts/bin/../config/l3mapgen_par_dineof_kd_490 ifile=/data/data652/coastwatch/oc/L3/scripts/bin/../temp/Config_dineof3_kd490/V2023131_kd_L3.nc ofile=/data/data369/viirs/L3_dineof/131/B2023131_A1_WW00_kd_490.nc Sun May 21 20:30:12 2023 : /data/data652/coastwatch/oc/L3/scripts/bin/l3cnvtr -b -s Suomi-NPP,NOAA-20,Sentinel-3A /data/data369/viirs/L3_dineof/131/B2023131_A1_WW00_kd_490.nc /data/aftp/socd1/mecb/coastwatch/viirs/science/L3/global/kd/dineof3/2023/B2023131_A1_WW00_kd490.nc 2023-05-28T22:23:26Z (local files) 2023-05-28T22:23:26Z https://polarwatch.noaa.gov/griddap/nesdisNPPN20S3AkdSCIDINEOFDaily.das"; String id "L3//data/data540/DINEOF/EOF-viirs-olci/reconstructed_mix_nsw/V2023131_kd_L3.nc"; String infoUrl "https://coastwatch.noaa.gov"; String institution "NOAA NESDIS STAR"; String instrument "VIIRS, OLCI"; String keywords "algorithm, altitude, attenuation, coefficient, data, diffuse, diffuse_attenuation_coefficient_of_downwelling_radiative_flux_in_sea_water, dineof, downwelling, environmental, filled, flux, gap, information, kd2, kd_490, L4, national, nesdis, noaa, optical, optical properties, properties, radiative, satellite, sea, seawater, service, star, time, water"; String l2_flag_names "ATMFAIL,LAND,HIGLINT,HILT,HISATZEN,CLOUD,HISOLZEN,LOWLW,CHLFAIL,NAVWARN,CLDSHDSTL,MAXAERITER,CHLWARN,ALGICE,SEAICE,NAVFAIL,FILTER"; String license "These data may be redistributed and used without restriction."; String map_projection "geographic"; String measure "Mean"; String naming_authority "gov.noaa.coastwatch"; Float64 Northernmost_Northing 89.95834; String platform "Suomi-NPP, NOAA-20, Sentinel-3A"; String processing_level "L3 Mapped"; String product_name "B2023131_A1_WW00_kd490.nc"; String proj4_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"; String project "Ocean Color Science Team (NOAA/NESDIS/STAR/OCST)"; String publisher_email "coastwatch.info@noaa.gov;ncei.info@noaa.gov"; String publisher_name "NOAA CoastWatch;National Centers for Environmental Information (NCEI)"; String publisher_type "group"; String publisher_url "https://coastwatch.noaa.gov;https://www.ncei.noaa.gov/"; String Satellite "Suomi-NPP NOAA-20, Sentinel-3A"; String Sensor "VIIRS, OLCI"; String sourceUrl "(local files)"; Float64 Southernmost_Northing -89.95834; String spatialResolution "9.28 km"; String standard_name_vocabulary "CF Standard Name Table v36"; String summary "DINEOF gap filled L4 data. NOAA National Environmental Satellite, Data, and Information Service (NESDIS) STAR data from a local source."; String temporal_range "daily"; String testOutOfDate "now-23days"; String time_coverage_end "2023-05-11T12:00:00Z"; String time_coverage_start "2018-02-09T12:00:00Z"; String title "Kd490 (Gap-filled DINEOF), NOAA S-NPP NOAA-20 VIIRS and Copernicus S-3A OLCI, Science Quality, Global 9km, 2018-recent, Daily"; Float64 Westernmost_Easting -179.9583; } }
The URL specifies what you want: the dataset, a description of the graph or the subset of the data, and the file type for the response.
griddap request URLs must be in the form
https://coastwatch.pfeg.noaa.gov/erddap/griddap/datasetID.fileType{?query}
For example,
https://coastwatch.pfeg.noaa.gov/erddap/griddap/jplMURSST41.htmlTable?analysed_sst[(2002-06-01T09:00:00Z)][(-89.99):1000:(89.99)][(-179.99):1000:(180.0)]
Thus, the query is often a data variable name (e.g., analysed_sst),
followed by [(start):stride:(stop)]
(or a shorter variation of that) for each of the variable's dimensions
(for example, [time][latitude][longitude]).
For details, see the griddap Documentation.