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ERDDAP > info > noaa_snpp_chla_daily

Title Sum-
Institution Dataset ID
 data       graph  M    Chlorophyll a Concentration, NPP VIIRS - CoastWatch - Daily, 2012-present    ?   F   I   M   background (external link) RSS Subscribe STAR noaa_snpp_chla_daily

The Dataset's Variables and Attributes

Row Type Variable Name Attribute Name Data Type Value
attribute NC_GLOBAL _lastModified String 2023-10-02T02:38:51.000Z
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 at
attribute NC_GLOBAL creator_name String NOAA CoastWatch
attribute NC_GLOBAL creator_type String institution
attribute NC_GLOBAL creator_url String (external link)
attribute NC_GLOBAL date_created String 2019-03-11T15:22:04Z
attribute NC_GLOBAL Easternmost_Easting double 359.98125000000005
attribute NC_GLOBAL geospatial_lat_max double 89.75625
attribute NC_GLOBAL geospatial_lat_min double -89.75625
attribute NC_GLOBAL geospatial_lat_resolution double 0.0375
attribute NC_GLOBAL geospatial_lat_units String degrees_north
attribute NC_GLOBAL geospatial_lon_max double 359.98125000000005
attribute NC_GLOBAL geospatial_lon_min double 0.01875000000001137
attribute NC_GLOBAL geospatial_lon_resolution double 0.037500000000000006
attribute NC_GLOBAL geospatial_lon_units String degrees_east
attribute NC_GLOBAL geospatial_vertical_max double 0.0
attribute NC_GLOBAL geospatial_vertical_min double 0.0
attribute NC_GLOBAL geospatial_vertical_positive String up
attribute NC_GLOBAL geospatial_vertical_units String m
attribute NC_GLOBAL grid_mapping_name String latitude_longitude
attribute NC_GLOBAL history String Mon Oct 2 07:41:10 2023: ncatted -O -a sw_point_longitude,global,o,f,0.01875
Mon Oct 2 07:41:10 2023: ncatted -O -a geospatial_lon_min,global,o,f,0.0
Mon Oct 2 07:41:10 2023: ncatted -O -a geospatial_lon_max,global,o,f,360.0
Mon Oct 2 07:41:10 2023: ncatted -O -a easternmost_longitude,global,o,f,360.0
Mon Oct 2 07:41:10 2023: ncatted -O -a westernmost_longitude,global,o,f,0.0
Mon Oct 2 07:41:10 2023: ncatted -O -a valid_max,lon,o,f,360.0
Mon Oct 2 07:41:10 2023: ncatted -O -a valid_min,lon,o,f,0.0
Mon Oct 2 07:41:08 2023: ncap2 -O -s where(lon<0) lon=lon+360
Mon Oct 2 07:41:06 2023: ncks -O --msa_usr_rdr -d lon,0.0,180.0 -d lon,-180.0,0.0
/data/socd5/tmp/hgu/v224/bin/l3mapgen par=/data/data652/coastwatch/oc/L3/scripts/bin/../config/l3mapgen_par_chlor_a ifile=/data/data652/coastwatch/oc/L3/scripts/bin/../temp/Config_bmw/ ofile=/data/data369/viirs/L3/2023/09/22/ Mon Oct 2 02:38:55 2023
: /data/data652/coastwatch/oc/L3/scripts/bin/l3cnvtr -r 4 /data/data369/viirs/L3/2023/09/22/ /data/aftp/socd1/mecb/coastwatch/viirs/science/L3/global/chlora/daily/WW00/
attribute NC_GLOBAL id String L3/2km/
attribute NC_GLOBAL identifier_product_doi String (external link)
attribute NC_GLOBAL identifier_product_doi_authority String (external link)
attribute NC_GLOBAL infoUrl String (external link)
attribute NC_GLOBAL institution String STAR
attribute NC_GLOBAL instrument String VIIRS
attribute NC_GLOBAL keywords String algorithm, altitude, chemistry, chlor_a, chlorophyll, color, concentration, data, default, earth, Earth Science > Oceans > Ocean Chemistry > Chlorophyll, Earth Science > Oceans > Ocean Optics > Ocean Color, image, imager, imager/radiometer, imaging, infrared, L3, level, level-3, mapped, mass, mass_concentration_of_chlorophyll_a_in_sea_water, national, npp, ocean, ocean color, oceans, optics, orbiting, partnership, polar, polar-orbiting, radiometer, science, sea, seawater, smi, standard, star, suite, suite/suomi-npp, suomi, time, viirs, viirs-n, viirsn, visible, water
attribute NC_GLOBAL keywords_vocabulary String GCMD Science Keywords
attribute NC_GLOBAL license String These data may be redistributed and used without restriction.
attribute NC_GLOBAL map_projection String geographic
attribute NC_GLOBAL measure String Mean
attribute NC_GLOBAL naming_authority String gov.noaa.coastwatch
attribute NC_GLOBAL NCO String netCDF Operators version 4.7.5 (Homepage =, Code =
attribute NC_GLOBAL nco_openmp_thread_number int 1
attribute NC_GLOBAL Northernmost_Northing double 89.75625
attribute NC_GLOBAL platform String Suomi-NPP
attribute NC_GLOBAL processing_level String L3 Mapped
attribute NC_GLOBAL processing_version String Unspecified
attribute NC_GLOBAL product_name String
attribute NC_GLOBAL project String Ocean Color Science Team (NOAA/NESDIS/STAR/OCST)
attribute NC_GLOBAL publisher_email String;
attribute NC_GLOBAL publisher_name String NOAA CoastWatch;National Centers for Environmental Information (NCEI)
attribute NC_GLOBAL publisher_type String group
attribute NC_GLOBAL publisher_url String; (external link)
attribute NC_GLOBAL Satellite String Suomi-NPP
attribute NC_GLOBAL Sensor String VIIRS
attribute NC_GLOBAL sourceUrl String (local files)
attribute NC_GLOBAL Southernmost_Northing double -89.75625
attribute NC_GLOBAL spatialResolution String 4.17 km
attribute NC_GLOBAL standard_name_vocabulary String CF Standard Name Table v29
attribute NC_GLOBAL summary String Visible and Infrared Imager/Radiometer Suite/Suomi-NPP (VIIRSN) produced by NOAA/STAR Ocean Color Team through NOAA Multi-Sensor Level 1 to Level 2 processing system (MSL12) using the Ocean Color improved satellite data record. This is daily data, 4-km resolution. More info:
attribute NC_GLOBAL temporal_range String day
attribute NC_GLOBAL testOutOfDate String now-93days
attribute NC_GLOBAL time_coverage_end String 2023-09-22T12:00:00Z
attribute NC_GLOBAL time_coverage_start String 2012-01-02T12:00:00Z
attribute NC_GLOBAL title String Chlorophyll a Concentration, NPP VIIRS - CoastWatch - Daily, 2012-present
attribute NC_GLOBAL Westernmost_Easting double 0.01875000000001137
dimension time   double nValues=4264, evenlySpaced=false, averageSpacing=1 day 0h 6m 5s
attribute time _CoordinateAxisType String Time
attribute time actual_range double 1.3255056E9, 1.695384E9
attribute time axis String T
attribute time calendar String gregorian
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 altitude   double nValues=1, onlyValue=0.0
attribute altitude _CoordinateAxisType String Height
attribute altitude _CoordinateZisPositive String up
attribute altitude actual_range double 0.0, 0.0
attribute altitude axis String Z
attribute altitude ioos_category String Location
attribute altitude long_name String Altitude
attribute altitude positive String up
attribute altitude standard_name String altitude
attribute altitude units String m
dimension latitude   double nValues=4788, evenlySpaced=true, averageSpacing=-0.0375
attribute latitude _CoordinateAxisType String Lat
attribute latitude actual_range double -89.75625, 89.75625
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 double 90.0
attribute latitude valid_min double -90.0
dimension longitude   double nValues=9600, evenlySpaced=true, averageSpacing=0.037500000000000006
attribute longitude _ChunkSizes uint 9600
attribute longitude _CoordinateAxisType String Lon
attribute longitude actual_range double 0.01875000000001137, 359.98125000000005
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 double 360.0
attribute longitude valid_min double 0.0
variable chlor_a   float time, altitude, latitude, longitude
attribute chlor_a _FillValue float NaN
attribute chlor_a C_format String %.4g
attribute chlor_a cell_methods String time:mean
attribute chlor_a colorBarMaximum double 30.0
attribute chlor_a colorBarMinimum double 0.03
attribute chlor_a colorBarScale String Log
attribute chlor_a coverage_content_type String physicalMeasurement
attribute chlor_a grid_mapping String coord_ref
attribute chlor_a ioos_category String Ocean Color
attribute chlor_a long_name String Diffuse attenuation coefficient at 490 nm, KD2 algorithm
attribute chlor_a references String O\'Reilly J. E. et al. (1998), Ocean color chlorophyll algorithms for SeaWiFS, J. Geophys. Res., 103(C11), 2493724953
attribute chlor_a standard_name String mass_concentration_of_chlorophyll_a_in_sea_water
attribute chlor_a units String mg m^-3
attribute chlor_a valid_max float 100.0
attribute chlor_a 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.

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