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ERDDAP > griddap > Data Access Form ?

Dataset Title:  Great Lakes GLSEA & NIC Ice. NOAA/GLERL/COASTWATCH data from a local source. Subscribe RSS
Institution:  NOAA/GLERL/COASTWATCH   (Dataset ID: test_greg)
Information:  Summary ? | License ? | Metadata | Background (external link) | Make a graph
 
Dimensions ? Start ? Stride ? Stop ?  Size ?    Spacing ?
 time (UTC, UTC) ?      365    1 day (even)
  < slider >
 nx (count) ?      1024    1.0 (even)
  < slider >
 ny (count) ?      1024    1.0 (even)
  < slider >
 
Grid Variables (which always also download all of the dimension variables)
 temp (Temperature, degree_C) ?

File type: (more info)

(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 1.5147648e+9, 1.5462144e+9;
    String axis "T";
    String base_date "1970,1,1,0";
    String ioos_category "Time";
    String long_name "UTC";
    String standard_name "time";
    String time_origin "01-JAN-1970 00:00:00";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  nx {
    Int16 actual_range 0, 1023;
    String ioos_category "Statistics";
    String long_name "NX";
    String units "count";
  }
  ny {
    Int16 actual_range 0, 1023;
    String ioos_category "Statistics";
    String long_name "NY";
    String units "count";
  }
  temp {
    Float64 colorBarMaximum 32.0;
    Float64 colorBarMinimum 0.0;
    String comment "negative values indicate ice fraction (0-1)";
    String ioos_category "Temperature";
    String long_name "Temperature";
    Float32 missing_value -99999.0;
    String standard_name "sea_water_temperature";
    String units "degree_C";
  }
  NC_GLOBAL {
    String author "gregory.lang@noaa.gov";
    String cdm_data_type "Grid";
    String comment "Great Lakes GLSEA & NIC Ice";
    String Conventions "COARDS, CF-1.6, ACDD-1.3";
    String creation_date "Mon Feb 11 13:59:20 2019 GMT";
    String creator_email "gregory.lang@noaa.gov";
    String creator_name "Gregory Lang";
    String creator_type "person";
    String creator_url "https://coastwatch.glerl.noaa.gov/";
    String disclaimer "https://www.glerl.noaa.gov/home/notice.html";
    String history 
"2019-04-23T02:56:53Z (local files)
2019-04-23T02:56:53Z http://coastwatch.glerl.noaa.gov/erddap/griddap/test_greg.das";
    String infoUrl "https://coastwatch.glerl.noaa.gov/";
    String institution "NOAA/GLERL/COASTWATCH";
    String keywords "coastwatch, data, earth, Earth Science > Oceans > Ocean Temperature > Water Temperature, environmental, glerl, glsea, great, great lakes, ice, laboratory, lakes, local, nic, noaa, ocean, oceans, research, science, sea, sea_water_temperature, seawater, source, temperature, time, water";
    String keywords_vocabulary "GCMD Science Keywords";
    String license "https://www.glerl.noaa.gov/home/notice.html";
    String references "https://coastwatch.glerl.noaa.gov/";
    String sourceUrl "(local files)";
    String standard_name_vocabulary "CF Standard Name Table v29";
    String summary "Great Lakes GLSEA & NIC Ice. NOAA/GLERL/COASTWATCH data from a local source.";
    String time_coverage_end "2018-12-31T00:00:00Z";
    String time_coverage_start "2018-01-01T00:00:00Z";
    String title "Great Lakes GLSEA & NIC Ice. NOAA/GLERL/COASTWATCH data from a local source.";
  }
}

 

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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