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ERDDAP > griddap > Make A Graph ?

Dataset Title:  Bantry Bay model particle track analysis   RSS
Institution:  Irish Marine Institute   (Dataset ID: BANTRY_PARTICLES)
Information:  Summary ? | License ? | FGDC | ISO 19115 | Metadata | Background (external link) | Data Access Form
 
Graph Type:  ?
X Axis:  ?
Y Axis:  ?
Color:  ?
 
Dimensions ?    Start ?    Stop ?
time (UTC) ?     specify just 1 value →
    << -
< <
release_location (count) ?     specify just 1 value →
    << -
< <
latitude (degrees_north) ?
    +
    -
< slider >
longitude (degrees_east) ?
    +
    -
< slider >
 
Graph Settings
Color Bar:   Continuity:   Scale: 
   Minimum:   Maximum:   N Sections: 
Draw land mask: 
Y Axis Minimum:   Maximum:   Ascending: 
 
(Please be patient. It may take a while to get the data.)
 
Optional:
Then set the File Type: (File Type information)
and
or view the URL:
(Documentation / Bypass this form ? )
    Click on the map to specify a new center point. ?
Zoom:
[The graph you specified. Please be patient.]

 

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 1.5423264e+9, 1.5443136e+9;
    String axis "T";
    String ioos_category "Time";
    String long_name "time since initialization, 2000-1-1";
    String standard_name "time";
    String time_origin "01-JAN-1970 00:00:00";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  release_location {
    Int16 actual_range 0, 5;
    String ioos_category "Unknown";
    String units "count";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float64 actual_range 51.140912310003, 51.899102770785255;
    String axis "Y";
    String ioos_category "Location";
    String long_name "Latitude";
    String standard_name "latitude";
    String units "degrees_north";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float64 actual_range -10.848548076923, -9.3414519231008;
    String axis "X";
    String ioos_category "Location";
    String long_name "Longitude";
    String standard_name "longitude";
    String units "degrees_east";
  }
  particle_hours {
    String colorBarMaximum "200";
    String colorBarMinimum "0";
    String colorBarPalette "KT_turbid";
    String coordinates "release latitude longitude";
    Float64 FillValue_ -999.0;
    String ioos_category "Statistics";
    String long_name "particle transport probability";
    Float32 missing_value -999.0;
    String standard_name "particle_hours";
    String units "hours";
  }
  NC_GLOBAL {
    String cdm_data_type "Grid";
    Float64 Easternmost_Easting -9.3414519231008;
    Float64 geospatial_lat_max 51.899102770785255;
    Float64 geospatial_lat_min 51.140912310003;
    Float64 geospatial_lat_resolution 0.0018095237727500054;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -9.3414519231008;
    Float64 geospatial_lon_min -10.848548076923;
    Float64 geospatial_lon_resolution 0.0029038461538;
    String geospatial_lon_units "degrees_east";
    String history 
"2018-12-09T20:23:26Z http://milas.marine.ie/thredds/dodsC/BANTRY_PARTICLES/PARTICLE_TRACKS
2018-12-09T20:23:26Z https://erddap.marine.ie/griddap/BANTRY_PARTICLES.das";
    String infoUrl "http://milas.marine.ie/thredds/";
    String institution "Irish Marine Institute";
    String license "Creative Commons Attribution 4.0 (https://creativecommons.org/licenses/by/4.0/)";
    Float64 Northernmost_Northing 51.899102770785255;
    String sourceUrl "http://milas.marine.ie/thredds/dodsC/BANTRY_PARTICLES/PARTICLE_TRACKS";
    Float64 Southernmost_Northing 51.140912310003;
    String summary "Aggregate model particle track data";
    String time_coverage_end "2018-12-09T00:00:00Z";
    String time_coverage_start "2018-11-16T00:00:00Z";
    String title "Bantry Bay model particle track analysis";
    Float64 Westernmost_Easting -10.848548076923;
  }
}

 

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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