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ERDDAP > griddap > Data Access Form ?

Dataset Title:  Data from a local source. Subscribe RSS
Institution:  ???   (Dataset ID: WRF_MPH)
Information:  Summary ? | License ? | Metadata | Background (external link) | Make a graph
 
Dimensions ? Start ? Stride ? Stop ?  Size ?    Spacing ?
 time (date time, UTC) ?      13075    1h 5m 2s (uneven)
  < slider >
 south_north (count) ?      189    1.0 (even)
  < slider >
 west_east (count) ?      299    1.0 (even)
  < slider >
 
Grid Variables (which always also download all of the dimension variables)
 GLW (W m-2) ?
 Q2 (kg kg-1) ?
 RAINC (mm) ?
 RAINNC (mm) ?
 SST (Sea Surface Temperature, degrees C) ?
 SWDOWN (W m-2) ?
 T2 (degrees C) ?
 U10 (Eastward Wind, m.s-1) ?
 V10 (Northward Wind, m.s-1) ?
 XLAT (degrees_north) ?
 XLONG (degrees_east) ?

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 1.3512096e+9, 1.4022288e+9;
    String axis "T";
    String ioos_category "Time";
    String long_name "date time";
    String standard_name "time";
    String time_origin "01-JAN-1970 00:00:00";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  south_north {
    Int16 actual_range 0, 188;
    String ioos_category "Unknown";
    String long_name "South North";
    String units "count";
  }
  west_east {
    Int16 actual_range 0, 298;
    String ioos_category "Unknown";
    String long_name "West East";
    String units "count";
  }
  GLW {
    String description "DOWNWARD LONG WAVE FLUX AT GROUND SURFACE";
    Int32 FieldType 104;
    String ioos_category "Unknown";
    String long_name "GLW";
    String MemoryOrder "XY ";
    String units "W m-2";
  }
  Q2 {
    Float64 colorBarMaximum 200.0;
    Float64 colorBarMinimum 0.0;
    String description "QV at 2 M";
    Int32 FieldType 104;
    String ioos_category "Unknown";
    String long_name "Q2";
    String MemoryOrder "XY ";
    String units "kg kg-1";
  }
  RAINC {
    String description "ACCUMULATED TOTAL CUMULUS PRECIPITATION";
    Int32 FieldType 104;
    String ioos_category "Meteorology";
    String long_name "RAINC";
    String MemoryOrder "XY ";
    String units "mm";
  }
  RAINNC {
    String description "ACCUMULATED TOTAL GRID SCALE PRECIPITATION";
    Int32 FieldType 104;
    String ioos_category "Meteorology";
    String long_name "RAINNC";
    String MemoryOrder "XY ";
    String units "mm";
  }
  SST {
    Float64 colorBarMaximum 32.0;
    Float64 colorBarMinimum 0.0;
    String description "SEA SURFACE TEMPERATURE";
    Int32 FieldType 104;
    String ioos_category "Temperature";
    String long_name "Sea Surface Temperature";
    String MemoryOrder "XY ";
    String standard_name "sea_surface_temperature";
    String units "degrees C";
  }
  SWDOWN {
    String description "DOWNWARD SHORT WAVE FLUX AT GROUND SURFACE";
    Int32 FieldType 104;
    String ioos_category "Unknown";
    String long_name "SWDOWN";
    String MemoryOrder "XY ";
    String units "W m-2";
  }
  T2 {
    Float64 colorBarMaximum 40.0;
    Float64 colorBarMinimum -10.0;
    String description "TEMP at 2 M";
    Int32 FieldType 104;
    String ioos_category "Temperature";
    String long_name "T2";
    String MemoryOrder "XY ";
    String units "degrees C";
  }
  U10 {
    Float64 colorBarMaximum 15.0;
    Float64 colorBarMinimum -15.0;
    String description "U at 10 M";
    Int32 FieldType 104;
    String ioos_category "Wind";
    String long_name "Eastward Wind";
    String MemoryOrder "XY ";
    String standard_name "eastward_wind";
    String units "m.s-1";
  }
  V10 {
    Float64 colorBarMaximum 15.0;
    Float64 colorBarMinimum -15.0;
    String description "V at 10 M";
    Int32 FieldType 104;
    String ioos_category "Wind";
    String long_name "Northward Wind";
    String MemoryOrder "XY ";
    String standard_name "northward_wind";
    String units "m.s-1";
  }
  XLAT {
    String _CoordinateAxisType "Lat";
    Float64 colorBarMaximum 90.0;
    Float64 colorBarMinimum -90.0;
    String description "LATITUDE, SOUTH IS NEGATIVE";
    Int32 FieldType 104;
    String ioos_category "Unknown";
    String long_name "XLAT";
    String MemoryOrder "XY ";
    String units "degrees_north";
  }
  XLONG {
    String _CoordinateAxisType "Lon";
    Float64 colorBarMaximum 180.0;
    Float64 colorBarMinimum -180.0;
    String description "LONGITUDE, WEST IS NEGATIVE";
    Int32 FieldType 104;
    String ioos_category "Unknown";
    String long_name "XLONG";
    String MemoryOrder "XY ";
    String units "degrees_east";
  }
  NC_GLOBAL {
    String _CoordSysBuilder "ucar.nc2.dataset.conv.WRFConvention";
    Int32 BL_PBL_PHYSICS 2;
    Int32 BOTTOM_TOP_GRID_DIMENSION 49;
    Int32 BOTTOM_TOP_PATCH_END_STAG 49;
    Int32 BOTTOM_TOP_PATCH_END_UNSTAG 48;
    Int32 BOTTOM_TOP_PATCH_START_STAG 1;
    Int32 BOTTOM_TOP_PATCH_START_UNSTAG 1;
    String cdm_data_type "Grid";
    Float32 CEN_LAT 60.1;
    Float32 CEN_LON -149.3;
    String Conventions "COARDS, CF-1.6, Unidata Dataset Discovery v1.0";
    Int32 CU_PHYSICS 2;
    Int32 DAMP_OPT 3;
    Float32 DAMPCOEF 0.2;
    Float32 DIFF_6TH_FACTOR 0.12;
    Int32 DIFF_6TH_OPT 0;
    Int32 DIFF_OPT 1;
    Float32 DT 18.0;
    Float32 DX 3000.0;
    Float32 DY 3000.0;
    Int32 FEEDBACK 1;
    Int32 GFDDA_END_H 0;
    Int32 GFDDA_INTERVAL_M 0;
    Float32 GMT 0.0;
    Int32 GRID_FDDA 0;
    Int32 GRID_ID 1;
    Int32 GRID_SFDDA 0;
    String GRIDTYPE "C";
    String history 
"Sat Aug 17 22:49:53 2013: /sw/bin/ncks -v XLONG,XLAT,U10,V10,GLW,SST,RAINC,RAINNC,Q2,T2,SWDOWN wrfmph_d01_2013-08-18_09:00:00.230.00 ../jpl_wrfmph_d01_2013-08-18_09:00:00.230.00
2018-10-17T05:38:33Z (local files)
2018-10-17T05:38:33Z http://erddap.axiomdatascience.com/erddap/griddap/WRF_MPH.das";
    Int32 I_PARENT_START 1;
    String infoUrl "???";
    String institution "???";
    Int32 ISICE 24;
    Int32 ISLAKE -1;
    Int32 ISOILWATER 14;
    Int32 ISURBAN 1;
    Int32 ISWATER 16;
    Int32 J_PARENT_START 1;
    Int32 JULDAY 230;
    Int32 JULYR 2013;
    String keywords "atmosphere, atmospheric, data, Earth Science > Atmosphere > Atmospheric Winds > Surface Winds, Earth Science > Oceans > Ocean Temperature > Sea Surface Temperature, eastward, eastward_wind, glw, local, meteorology, northward, northward_wind, ocean, oceans, rainc, rainnc, sea, sea_surface_temperature, source, surface, swdown, temperature, wind, winds, xlat, xlong";
    String keywords_vocabulary "GCMD Science Keywords";
    Float32 KHDIF 0.0;
    Int32 KM_OPT 4;
    Float32 KVDIF 0.0;
    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.";
    Int32 MAP_PROJ 2;
    String Metadata_Conventions "COARDS, CF-1.6, Unidata Dataset Discovery v1.0";
    String MMINLU "USGS";
    Float32 MOAD_CEN_LAT 60.1;
    Int32 MOIST_ADV_OPT 1;
    Int32 MP_PHYSICS 16;
    Int32 NUM_LAND_CAT 24;
    Int32 OBS_NUDGE_OPT 0;
    Int32 PARENT_GRID_RATIO 1;
    Int32 PARENT_ID 1;
    Float32 POLE_LAT 90.0;
    Float32 POLE_LON 0.0;
    Int32 RA_LW_PHYSICS 1;
    Int32 RA_SW_PHYSICS 1;
    Int32 SCALAR_ADV_OPT 1;
    Int32 SF_SFCLAY_PHYSICS 2;
    Int32 SF_SURFACE_PHYSICS 2;
    Int32 SF_URBAN_PHYSICS 0;
    Int32 SGFDDA_END_H 0;
    Int32 SGFDDA_INTERVAL_M 0;
    String SIMULATION_START_DATE "2013-08-18_00:00:00";
    Int32 SMOOTH_OPTION 0;
    String sourceUrl "(local files)";
    Int32 SOUTH_NORTH_GRID_DIMENSION 190;
    Int32 SOUTH_NORTH_PATCH_END_STAG 190;
    Int32 SOUTH_NORTH_PATCH_END_UNSTAG 189;
    Int32 SOUTH_NORTH_PATCH_START_STAG 1;
    Int32 SOUTH_NORTH_PATCH_START_UNSTAG 1;
    Int32 SST_UPDATE 0;
    Float32 STAND_LON -149.3;
    String standard_name_vocabulary "CF-12";
    String START_DATE "2013-08-18_00:00:00";
    String summary "Data from a local source.";
    Int32 SURFACE_INPUT_SOURCE 1;
    Float32 SWRAD_SCAT 1.0;
    String time_coverage_end "2014-06-08T12:00:00Z";
    String time_coverage_start "2012-10-26T00:00:00Z";
    String TITLE " OUTPUT FROM WRF V3.1.1 MODEL";
    String title "Data from a local source.";
    Int32 TKE_ADV_OPT 1;
    Float32 TRUELAT1 60.1;
    Float32 TRUELAT2 90.0;
    Int32 W_DAMPING 1;
    Int32 WEST_EAST_GRID_DIMENSION 300;
    Int32 WEST_EAST_PATCH_END_STAG 300;
    Int32 WEST_EAST_PATCH_END_UNSTAG 299;
    Int32 WEST_EAST_PATCH_START_STAG 1;
    Int32 WEST_EAST_PATCH_START_UNSTAG 1;
  }
}

 

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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