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ERDDAP > griddap > Make A Graph ?

Dataset Title:  Top Dataset, B2000, PRECT CESM1-CAM5 B2000 1920-2079 3moRunMeans [time] Subscribe RSS
Institution:  NOAA ESRL   (Dataset ID: noaa_esrl_4985_ca76_f751)
Information:  Summary ? | License ? | Metadata | Background (external link) | Data Access Form
 
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Things You Can Do With Your Graphs

Well, you can do anything you want with your graphs, of course. But some things you might not have considered are:

The Dataset Attribute Structure (.das) for this Dataset

Attributes {
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range -1.5767136e+9, 3.469824e+9;
    String axis "T";
    String calendar "standard";
    String ioos_category "Time";
    String long_name "Time";
    String standard_name "time";
    String time_origin "01-JAN-1970 00:00:00";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  date {
    String calendar "standard";
    String ioos_category "Currents";
    String long_name "current date (YYYYMM)";
  }
  NC_GLOBAL {
    String cdm_data_type "Grid";
    String Conventions "null, COARDS, CF-1.6, ACDD-1.3";
    String creation_date "Thu Nov 30 16:44:08 MST 2017";
    String creator_email "esrl.psd.data@noaa.gov";
    String creator_name "NOAA ESRL PSD";
    String creator_type "institution";
    String creator_url "https://www.esrl.noaa.gov/psd/";
    String history 
"2018-04-25T02:54:21Z https://www.esrl.noaa.gov/psd/thredds/dodsC/Datasets/SERDP_regimeshifts/data/CESM1-CAM5/B2000/PRECT_CESM1-CAM5_B2000_1920-2079_3moRunMeans.nc
2018-04-25T02:54:21Z http://upwell.pfeg.noaa.gov/griddap/noaa_esrl_4985_ca76_f751.das";
    String id "Datasets/SERDP_regimeshifts/data/CESM1-CAM5/B2000/PRECT_CESM1-CAM5_B2000_1920-2079_3moRunMeans.nchttps://www.esrl.noaa.gov/psd/thredds/dodsC/Datasets/SERDP_regimeshifts/data/CESM1-CAM5/B2000/PRECT_CESM1-CAM5_B2000_1920-2079_3moRunMeans.nc";
    String infoUrl "https://www.esrl.noaa.gov/psd/thredds/dodsC/Datasets/SERDP_regimeshifts/data/CESM1-CAM5/B2000/PRECT_CESM1-CAM5_B2000_1920-2079_3moRunMeans.nc.html";
    String institution "NOAA ESRL";
    String keywords "1920-2079, 3morunmeans, b2000, cam5, cesm1, cesm1-cam5, current, currents, data, dataset, date, earth, esrl, laboratory, noaa, prect, research, system, time, top, yyyymm";
    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.";
    String sourceUrl "https://www.esrl.noaa.gov/psd/thredds/dodsC/Datasets/SERDP_regimeshifts/data/CESM1-CAM5/B2000/PRECT_CESM1-CAM5_B2000_1920-2079_3moRunMeans.nc";
    String standard_name_vocabulary "CF Standard Name Table v29";
    String summary "Top Dataset, B2000, PRECT CESM1-CAM5 B2000 1920-2079 3moRunMeans";
    String time_coverage_end "2079-12-15T00:00:00Z";
    String time_coverage_start "1920-01-15T00:00:00Z";
    String title "Top Dataset, B2000, PRECT CESM1-CAM5 B2000 1920-2079 3moRunMeans [time]";
  }
}

 

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://upwell.pfeg.noaa.gov/erddap/griddap/datasetID.fileType{?query}
For example,
https://upwell.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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