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| Grid DAP Data | Sub- set | Table DAP Data | Make A Graph | W M S | Source Data Files | Title | Sum- mary | FGDC, ISO, Metadata | Back- ground Info | RSS | Institution | Dataset ID | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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
| 
|
| noaacwecnNPPVIIRSSQkd490EastCoastSeasonal |
| 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 |
| 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 |
| 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 | 2025-02-15T06:07:58Z |
| 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=53, evenlySpaced=false, averageSpacing=91 days 7h 18m 39s | |
| attribute | time | _CoordinateAxisType | String | Time |
| attribute | time | actual_range | double | 1.32938628391E9, 1.739599678266E9 |
| 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 | uint | 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.