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ERDDAP > info > noaacwecnNPPVIIRSSQkd490EastCoastSeasonal

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 data       graph  M    files  Kd490, NOAA S-NPP VIIRS, Science Quality, U.S. East Coast 750m, Level 3, 2012-present,
Seasonal
   ?   F   I   M   background (external link) RSS
NOAA NESDIS Coast...  ?
noaacwecnNPPVIIRSSQkd490EastCoastSeasonal

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 ronald.vogel at noaa.gov
attribute NC_GLOBAL creator_name String NOAA CoastWatch East Coast Node
attribute NC_GLOBAL creator_type String institution
attribute NC_GLOBAL creator_url String https://eastcoast.coastwatch.noaa.gov (external link)
attribute NC_GLOBAL cw:orbit_type String ascending
attribute NC_GLOBAL cw:pass_type String day
attribute NC_GLOBAL cw:polygon_latitude double 46.0659239654323, 46.0659239654323, 46.0659239654323, 46.0659239654323, 46.0659239654323, 40.07622512311245, 34.0865262807926, 28.096827438472747, 22.107128596152897, 22.107128596152897, 22.107128596152897, 22.107128596152897, 22.107128596152897, 28.096827438472747, 34.0865262807926, 40.07622512311245, 46.0659239654323
attribute NC_GLOBAL cw:polygon_longitude double -85.07597103632074, -78.7948064161434, -72.51364179596608, -66.23247717578874, -59.95131255561142, -59.95131255561142, -59.95131255561142, -59.95131255561142, -59.95131255561142, -66.23247717578874, -72.51364179596608, -78.7948064161434, -85.07597103632074, -85.07597103632074, -85.07597103632074, -85.07597103632074, -85.07597103632074
attribute NC_GLOBAL dcs:acquisitionEndDateTime String 2022-06-30T19:13:51Z
attribute NC_GLOBAL dcs:acquisitionStartDateTime String 2022-04-01T15:36:33Z
attribute NC_GLOBAL dcs:createDateTime String 2022-07-12T16:54:49Z
attribute NC_GLOBAL dcs:createInstitution String NOAA/NESDIS Center for Satellite Applications and Research (STAR)
attribute NC_GLOBAL dcs:easternLongitude double -59.95131255561142
attribute NC_GLOBAL dcs:geodeticDatum String WGS 84
attribute NC_GLOBAL dcs:mapProjection String Geographic
attribute NC_GLOBAL dcs:northernLatitude double 46.0659239654323
attribute NC_GLOBAL dcs:observedProperty String Unknown
attribute NC_GLOBAL dcs:observedPropertyAlgorithm String Unknown
attribute NC_GLOBAL dcs:processingLevel String Level 3
attribute NC_GLOBAL dcs:sensor String VIIRS
attribute NC_GLOBAL dcs:sensorPlatform String NPP
attribute NC_GLOBAL dcs:southernLatitude double 22.107128596152897
attribute NC_GLOBAL dcs:westernLongitude double -85.07597103632074
attribute NC_GLOBAL Easternmost_Easting double -59.95131255561142
attribute NC_GLOBAL geospatial_lat_max double 46.0659239654323
attribute NC_GLOBAL geospatial_lat_min double 22.107128596152897
attribute NC_GLOBAL geospatial_lat_resolution double 0.006168587891163594
attribute NC_GLOBAL geospatial_lat_units String degrees_north
attribute NC_GLOBAL geospatial_lon_max double -59.95131255561142
attribute NC_GLOBAL geospatial_lon_min double -85.07597103632074
attribute NC_GLOBAL geospatial_lon_resolution double 0.006168587891163593
attribute NC_GLOBAL geospatial_lon_units String degrees_east
attribute NC_GLOBAL infoUrl String https://eastcoast.coastwatch.noaa.gov/cw_viirs_k490.php (external link)
attribute NC_GLOBAL institution String NOAA NESDIS CoastWatch East Coast Node
attribute NC_GLOBAL instrument String Visible Infrared Imaging Radiometer Suite (VIIRS)
attribute NC_GLOBAL keywords String color, data, diffuse attenuation coefficient at 490nm, downwelling radiative flux, downwelling spectral irradiance, Earth Science > Oceans > Ocean Optics > Attenuation/Transmission, Earth Science > Oceans > Ocean Optics > Extinction Coefficients, Earth Science > Oceans > Ocean Optics > Ocean Color, Earth Science > Oceans > Ocean Optics > Turbidity, Earth Science > Oceans > Water Quality, image, imager, imager/radiometer, Kd-490, Kd490, kd490, kd_490, L3, level 3, level-3, light attenuation, mapped, ocean, ocean color, oceans, optical, polar-orbiting, radiance, radiometer, remote sensing, s-npp, satellite, sea, seasonal, seawater, snpp, VIIRS, viirs, visible, water, water quality
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, CoastWatch, NOAA, nor the US Government, nor any of their employees or contractors, make 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 Northernmost_Northing double 46.0659239654323
attribute NC_GLOBAL satellite String Suomi National Polar-orbiting Partnership (S-NPP)
attribute NC_GLOBAL sourceUrl String (local files)
attribute NC_GLOBAL Southernmost_Northing double 22.107128596152897
attribute NC_GLOBAL standard_name_vocabulary String CF Standard Name Table v29
attribute NC_GLOBAL summary String Seasonal average diffuse attenuation coefficient at 490nm (Kd490) for the U.S. East Coast, from the VIIRS instrument aboard the S-NPP satellite, 2012-present, is produced using the Wang et al. (2009) algorithm, in which separate algorithms for clear open ocean and turbid coastal waters are weighted into a combined product. This approach improves accuracy across ocean conditions. Atmospheric correction uses the near-infrared (NIR) approach of Jiang and Wang (2014), referred to as the BMW atmospheric correction. The individual overpasses are composited into daily mean grids (~840m), then the daily mean grids are averaged into seasonal gridded chlorophyll-a. Data in the last year of the series represent near real-time data and are of lesser accuracy than the science-quality data of the years before the last year. Seasons represent the periods January to March, April to June, July to September, and October to December. More info: https://eastcoast.coastwatch.noaa.gov/cw_viirs_k490.php
attribute NC_GLOBAL time_coverage_end String 2022-05-16T17:25:12Z
attribute NC_GLOBAL time_coverage_start String 2012-02-16T09:58:03Z
attribute NC_GLOBAL title String Kd490, NOAA S-NPP VIIRS, Science Quality, U.S. East Coast 750m, Level 3, 2012-present, Seasonal
attribute NC_GLOBAL Westernmost_Easting double -85.07597103632074
dimension time   double nValues=42, evenlySpaced=false, averageSpacing=91 days 6h 37m 15s
attribute time _CoordinateAxisType String Time
attribute time actual_range double 1.32938628391E9, 1.652721912896E9
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 level   double nValues=1, onlyValue=0.0
attribute level actual_range double 0.0, 0.0
attribute level ioos_category String Location
attribute level long_name String Altitude
attribute level positive String up
attribute level standard_name String altitude
attribute level units String m
dimension latitude   double nValues=3885, evenlySpaced=true, averageSpacing=-0.006168587891163594
attribute latitude _CoordinateAxisType String Lat
attribute latitude actual_range double 22.107128596152897, 46.0659239654323
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=4074, evenlySpaced=true, averageSpacing=0.006168587891163593
attribute longitude _CoordinateAxisType String Lon
attribute longitude actual_range double -85.07597103632074, -59.95131255561142
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 kd_490   float time, level, latitude, longitude
attribute kd_490 _ChunkSizes int 1, 1, 512, 512
attribute kd_490 _FillValue float NaN
attribute kd_490 cell_methods String area: mean
attribute kd_490 colorBarMaximum double 6.0
attribute kd_490 colorBarMinimum double 0.02
attribute kd_490 colorBarPalette String Rainbow
attribute kd_490 colorBarScale String Log
attribute kd_490 grid_mapping String coord_ref
attribute kd_490 ioos_category String Optical Properties
attribute kd_490 long_name String Diffuse Attenuation Coefficient at 490 nm
attribute kd_490 missing_value float NaN
attribute kd_490 source String noaa_mecb_kd_490_algorithm noaa_mecb_bmw_atmospheric_correction
attribute kd_490 standard_name String diffuse_attenuation_coefficient_of_downwelling_radiative_flux_in_sea_water
attribute kd_490 units String m^-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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