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Dataset Title:  VIIRS SST Day and Night 3 Day Composite Subscribe RSS
Institution:  NOAA/NESDIS   (Dataset ID: erdVHsstaWS3day)
Information:  Summary ? | License ? | FGDC | ISO 19115 | Metadata | Background (external link) | Files | Make a graph
 
Dimensions ? Start ? Stride ? Stop ?  Size ?    Spacing ?
 time (Centered Time, UTC) ?      3475    1 day 1h 4m 40s (uneven)
  < slider >
 altitude (m) ?      1    (just one value)
  < slider >
 latitude (degrees_north) ?      1504    -0.007247808 (uneven)
  < slider >
 longitude (degrees_east) ?      1504    0.008983153 (even)
  < slider >
 
Grid Variables (which always also download all of the dimension variables) 
 sst (Sea Surface Temperature, degree_C) ?
 nobs (Number of Observations) ?

File type: (more information)

(Documentation / Bypass this form) ?
 
(Please be patient. It may take a while to get the data.)


 

The Dataset Attribute Structure (.das) for this Dataset

Attributes {
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.4149296e+9, 1.7285616e+9;
    String axis "T";
    Int32 fraction_digits 0;
    String ioos_category "Time";
    String long_name "Centered 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";
    Float64 actual_range 30.860437023511412, 41.753893186176605;
    String axis "Y";
    String coordsys "geographic";
    String ioos_category "Location";
    String long_name "Latitude";
    String point_spacing "even";
    String standard_name "latitude";
    String units "degrees_north";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float64 actual_range -128.2508393601582, -114.7491606398418;
    String axis "X";
    String coordsys "geographic";
    String ioos_category "Location";
    String long_name "Longitude";
    String point_spacing "even";
    String standard_name "longitude";
    String units "degrees_east";
  }
  sst {
    Float32 _FillValue -100000.0;
    Float64 colorBarMaximum 32.0;
    Float64 colorBarMinimum 0.0;
    String ioos_category "Temperature";
    String long_name "Sea Surface Temperature";
    Int32 missing -100000;
    String standard_name "sea_surface_temperature";
    String units "degree_C";
  }
  nobs {
    Int32 _FillValue 2147483647;
    Float64 colorBarMaximum 100.0;
    Float64 colorBarMinimum 0.0;
    String ioos_category "Statistics";
    String long_name "Number of Observations";
  }
  NC_GLOBAL {
    String cdm_data_type "Grid";
    String contact "John Sapper - NOAA Federal <john.sapper@noaa.gov>";
    String Conventions "CF-1.10, COARDS, ACDD-1.3";
    String creation_date "2014-01-28 UTC";
    String creator_email "erd.data@noaa.gov";
    String creator_name "NOAA PFEG";
    String creator_type "institution";
    String creator_url "https://www.pfeg.noaa.gov";
    Float64 Easternmost_Easting -114.7491606398418;
    Float64 geospatial_lat_max 41.753893186176605;
    Float64 geospatial_lat_min 30.860437023511412;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -114.7491606398418;
    Float64 geospatial_lon_min -128.2508393601582;
    Float64 geospatial_lon_resolution 0.008983152841195214;
    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 history 
"3-day composite mean of files CWR_2022_251_0910_npp_ws.hdf CWR_2022_251_1050_npp_ws.hdf CWR_2022_251_2030_npp_ws.hdf CWR_2022_251_2210_npp_ws.hdf CWR_2022_252_0850_npp_ws.hdf CWR_2022_252_1030_npp_ws.hdf CWR_2022_252_2010_npp_ws.hdf CWR_2022_252_2200_npp_ws.hdf CWR_2022_253_0840_npp_ws.hdf CWR_2022_253_1020_npp_ws.hdf CWR_2022_253_2000_npp_ws.hdf CWR_2022_253_2140_npp_ws.hdf with acspo_mask set to 0 or 2  (day and night values)
2024-10-13T06:38:38Z (local files)
2024-10-13T06:38:38Z https://coastwatch.pfeg.noaa.gov/erddap/griddap/erdVHsstaWS3day.das";
    String infoUrl "https://www.pfeg.noaa.gov";
    String institution "NOAA/NESDIS";
    String keywords "altitude, composite, data, day, earth, Earth Science > Oceans > Ocean Temperature > Sea Surface Temperature, environmental, imager, imager/radiometer, imaging, information, infrared, national, nesdis, night, noaa, nobs, number, observations, ocean, oceans, radiometer, satellite, science, sea, sea_surface_temperature, service, sst, statistics, suite, surface, temperature, time, viirs, visible";
    String keywords_vocabulary "GCMD Science Keywords";
    String license 
"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.";
    Float64 Northernmost_Northing 41.753893186176605;
    String product_version "ACSPO version 2.3";
    String references "Boris Petrenko and John Stroup (2013), ACSPO-VIIRS ALGORITHM THEORETICAL BASIS DOCUMENT, ftp://www.star.nesdis.noaa.gov/pub/sod/osb/aignatov/ACSPO";
    String rights "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 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.";
    String source_data "NPP_VIIRS";
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 30.860437023511412;
    String spatial_resolution "0.8km";
    String standard_name_vocabulary "CF Standard Name Table v70";
    String summary "Visible and Infrared Imager/Radiometer Suite (VIIRS) Sea Surface Temperature (SST) Day and Night 3 Day Composite";
    String time_coverage_end "2024-10-10T12:00:00Z";
    String time_coverage_start "2014-11-02T12:00:00Z";
    String title "VIIRS SST Day and Night 3 Day Composite";
    Float64 Westernmost_Easting -128.2508393601582;
  }
}

 

Using griddap to Request Data and Graphs from Gridded Datasets

griddap lets you request a data subset, graph, or map from a gridded dataset (for example, sea surface temperature data from a satellite), via a specially formed URL. griddap uses the OPeNDAP (external link) Data Access Protocol (DAP) (external link) and its projection constraints (external link).

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.


 
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