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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 | VIIRSN, Suomi-NPP, Level-3 SMI, NASA, Global, 4km, Chlorophyll a, OCI Algorithm, R2018, 2012- present, 8-Day |
| F I M | background
| 
| 
| NASA/GSFC OBPG | erdVH2018chla8day |
| Row Type | Variable Name | Attribute Name | Data Type | Value |
|---|---|---|---|---|
| attribute | NC_GLOBAL | _lastModified | String | 2022-08-15T00:20:56.000Z |
| 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 | data at oceancolor.gsfc.nasa.gov |
| attribute | NC_GLOBAL | creator_name | String | NASA/GSFC/OBPG |
| attribute | NC_GLOBAL | creator_type | String | group |
| attribute | NC_GLOBAL | creator_url | String | https://oceandata.sci.gsfc.nasa.gov |
| attribute | NC_GLOBAL | date_created | String | 2022-08-15T00:20:56.000Z |
| attribute | NC_GLOBAL | Easternmost_Easting | double | 179.9792 |
| attribute | NC_GLOBAL | geospatial_lat_max | double | 89.97916 |
| attribute | NC_GLOBAL | geospatial_lat_min | double | -89.97917 |
| attribute | NC_GLOBAL | geospatial_lat_resolution | double | 0.04166666589488307 |
| attribute | NC_GLOBAL | geospatial_lat_units | String | degrees_north |
| attribute | NC_GLOBAL | geospatial_lon_max | double | 179.9792 |
| attribute | NC_GLOBAL | geospatial_lon_min | double | -179.9792 |
| attribute | NC_GLOBAL | geospatial_lon_resolution | double | 0.041666674383609215 |
| attribute | NC_GLOBAL | geospatial_lon_units | String | degrees_east |
| attribute | NC_GLOBAL | history | String | SNPP data files are downloaded ASAP from https://oceandata.sci.gsfc.nasa.gov/VIIRS-SNPP/Mapped/8-Day/4km/chlor_a/ to NOAA NMFS SWFSC ERD (erd.data@noaa.gov). NOAA NMFS SWFSC ERD (erd.data@noaa.gov) uses ERDDAP to add the time variable and slightly modify the metadata. Direct read of HDF4 file through CDM library. |
| attribute | NC_GLOBAL | identifier_product_doi | String | 10.5067/NPP/VIIRS/L3M/CHL/2018 |
| attribute | NC_GLOBAL | identifier_product_doi_authority | String | https://dx.doi.org |
| attribute | NC_GLOBAL | infoUrl | String | https://oceancolor.gsfc.nasa.gov/data/viirs-snpp/ |
| attribute | NC_GLOBAL | institution | String | NASA/GSFC OBPG |
| attribute | NC_GLOBAL | instrument | String | VIIRS |
| attribute | NC_GLOBAL | keywords | String | 4km, 8-day, chemistry, chlorophyll, color, composite, concentration, concentration_of_chlorophyll_in_sea_water, Earth Science > Oceans > Ocean Chemistry > Chlorophyll, gsfc, image, joint, jpss, level, level-3, mapped, mean, nasa, noaa, npoess, npp, obpg, ocean, ocean color, oceans, orbiting, polar, satellite, sea, seawater, smi, standard, suomi, viirs, viirsn, water |
| attribute | NC_GLOBAL | keywords_vocabulary | String | GCMD Science Keywords |
| attribute | NC_GLOBAL | l2_flag_names | String | ATMFAIL,LAND,HILT,HISATZEN,STRAYLIGHT,CLDICE,COCCOLITH,LOWLW,CHLWARN,CHLFAIL,NAVWARN,MAXAERITER,ATMWARN,HISOLZEN,NAVFAIL,FILTER,HIGLINT |
| attribute | NC_GLOBAL | license | String | https://science.nasa.gov/earth-science/earth-science-data/data-information-policy/ 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 | measure | String | Mean |
| attribute | NC_GLOBAL | naming_authority | String | gov.noaa.pfeg.coastwatch |
| attribute | NC_GLOBAL | Northernmost_Northing | double | 89.97916 |
| attribute | NC_GLOBAL | platform | String | Suomi-NPP |
| attribute | NC_GLOBAL | processing_level | String | L3 Mapped |
| attribute | NC_GLOBAL | processing_version | String | 2018.0 |
| attribute | NC_GLOBAL | project | String | Ocean Biology Processing Group (NASA/GSFC/OBPG) |
| attribute | NC_GLOBAL | publisher_email | String | data at oceancolor.gsfc.nasa.gov |
| attribute | NC_GLOBAL | publisher_name | String | NASA/GSFC/OBPG |
| attribute | NC_GLOBAL | publisher_url | String | https://oceandata.sci.gsfc.nasa.gov |
| attribute | NC_GLOBAL | references | String | Hu, C., Lee Z., and Franz, B.A. (2012). Chlorophyll-a algorithms for oligotrophic oceans: A novel approach based on three-band reflectance difference, J. Geophys. Res., 117, C01011, doi:10.1029/2011JC007395. |
| attribute | NC_GLOBAL | sourceUrl | String | https://oceandata.sci.gsfc.nasa.gov/VIIRS-SNPP/Mapped/8Day/4km/chlor_a/ |
| attribute | NC_GLOBAL | Southernmost_Northing | double | -89.97917 |
| attribute | NC_GLOBAL | spatialResolution | String | 4.64 km |
| attribute | NC_GLOBAL | standard_name_vocabulary | String | CF Standard Name Table v70 |
| attribute | NC_GLOBAL | summary | String | R2018 version of Level-3 Standard Mapped Image (SMI), Global, 4km, Chlorophyll a, OCI Algorithm, 8-Day composite data from the Visible and Infrared Imager/Radiometer Suite (VIIRS), as processed by NASA GSFC Ocean Biology Processing Group (OBPG). VIIRS is a multi-disciplinary instrument that flies on the Suomi-NPP (National Polar-orbiting Partnership) satellite. Suomi-NPP is the initial spacecraft in the JPSS (Joint Polar Satellite Systems) series of spacecraft. JPSS is our Nation's next generation polar-orbiting operational environmental satellite system. JPSS is a collaborative program between NOAA and its acquisition agent NASA. VIIRS is the successor to MODIS for Earth science data product generation. (This version of the VH data was first released on 2017-12-12.) |
| attribute | NC_GLOBAL | temporal_range | String | 8-day |
| attribute | NC_GLOBAL | testOutOfDate | String | now-35days |
| attribute | NC_GLOBAL | time_coverage_end | String | 2022-07-24T00:00:00Z |
| attribute | NC_GLOBAL | time_coverage_start | String | 2012-01-05T00:00:00Z |
| attribute | NC_GLOBAL | title | String | VIIRSN, Suomi-NPP, Level-3 SMI, NASA, Global, 4km, Chlorophyll a, OCI Algorithm, R2018, 2012-present, 8-Day |
| attribute | NC_GLOBAL | Westernmost_Easting | double | -179.9792 |
| dimension | time | double | nValues=477, evenlySpaced=false, averageSpacing=8 days 2h 16m 8s | |
| attribute | time | _CoordinateAxisType | String | Time |
| attribute | time | actual_range | double | 1.3257216E9, 1.6586208E9 |
| attribute | time | axis | String | T |
| attribute | time | ioos_category | String | Time |
| attribute | time | long_name | String | Centered 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=true, averageSpacing=-0.04166666589488307 | |
| attribute | latitude | _CoordinateAxisType | String | Lat |
| attribute | latitude | actual_range | float | -89.97917, 89.97916 |
| 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 |
| attribute | latitude | valid_max | float | 90.0 |
| attribute | latitude | valid_min | float | -90.0 |
| dimension | longitude | float | nValues=8640, evenlySpaced=true, averageSpacing=0.041666674383609215 | |
| attribute | longitude | _CoordinateAxisType | String | Lon |
| attribute | longitude | actual_range | float | -179.9792, 179.9792 |
| 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 |
| attribute | longitude | valid_max | float | 180.0 |
| attribute | longitude | valid_min | float | -180.0 |
| variable | chla | float | time, latitude, longitude | |
| attribute | chla | _FillValue | float | -32767.0 |
| attribute | chla | colorBarMaximum | double | 30.0 |
| attribute | chla | colorBarMinimum | double | 0.03 |
| attribute | chla | colorBarScale | String | Log |
| attribute | chla | ioos_category | String | Ocean Color |
| attribute | chla | long_name | String | Chlorophyll Concentration, OCI Algorithm |
| attribute | chla | references | String | Hu, C., Lee Z., and Franz, B.A. (2012). Chlorophyll-a algorithms for oligotrophic oceans: A novel approach based on three-band reflectance difference, J. Geophys. Res., 117, C01011, doi:10.1029/2011JC007395. |
| attribute | chla | standard_name | String | concentration_of_chlorophyll_in_sea_water |
| attribute | chla | units | String | mg m^-3 |
| attribute | chla | valid_max | float | 100.0 |
| attribute | chla | valid_min | float | 0.001 |
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.