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ERDDAP > griddap > Data Access Form ?

Dataset Title:  Data from a local source. Subscribe RSS
Institution:  ???   (Dataset ID: WRF_D01)
Information:  Summary ? | License ? | Metadata | Background (external link) | Make a graph
 
Dimensions ? Start ? Stride ? Stop ?  Size ?    Spacing ?
 time (UTC) ?      19450    1h 2m 0s (uneven)
  < slider >
 south_north (count) ?      72    1.0 (even)
  < slider >
 west_east (count) ?      90    1.0 (even)
  < slider >
 
Grid Variables (which always also download all of the dimension variables)
 T2 (Temperature at 2 meters, degree celsius) ?
 U10 (Eastward Wind, m.s-1) ?
 V10 (Northward Wind, m.s-1) ?
 SNOW (Liquid Water Content Of Surface Snow, kg.m-2) ?
 SNOWH (Physical Snow Amount, m) ?
 SST (Sea surface temperature, degree_Celsius) ?
 TSK (Surface Skin Temperature, degree_Celsius) ?
 RAINNC (Lwe Thickness Of Precipitation Amount, mm) ?
 SNOWNC (Thickness Of Snowfall Amount, mm) ?
 TMN (degree celsius) ?

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 1.2898656e+9, 1.3622256e+9;
    String axis "T";
    String ioos_category "Time";
    String long_name "synthesized time coordinate from Times(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, 71;
    String ioos_category "Unknown";
    String long_name "South North";
    String units "count";
  }
  west_east {
    Int16 actual_range 0, 89;
    String ioos_category "Unknown";
    String long_name "West East";
    String units "count";
  }
  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 "Temperature at 2 meters";
    String MemoryOrder "XY ";
    String standard_name "air_temperature";
    String units "degree celsius";
  }
  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";
  }
  SNOW {
    Float64 colorBarMaximum 1000.0;
    Float64 colorBarMinimum 0.0;
    String description "SNOW WATER EQUIVALENT";
    Int32 FieldType 104;
    String ioos_category "Ice Distribution";
    String long_name "Liquid Water Content Of Surface Snow";
    String MemoryOrder "XY ";
    Float32 missing_value -9999.0;
    String standard_name "liquid_water_content_of_surface_snow";
    String units "kg.m-2";
  }
  SNOWH {
    Float64 colorBarMaximum 1.0;
    Float64 colorBarMinimum 0.0;
    String description "PHYSICAL SNOW AMOUNT";
    Int32 FieldType 104;
    String ioos_category "Ice Distribution";
    String long_name "Physical Snow Amount";
    String MemoryOrder "XY ";
    Float32 missing_value -9999.0;
    String standard_name "thickness_of_snowfall_amount";
    String units "m";
  }
  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 ";
    Float32 missing_value -9999.0;
    String standard_name "sea_surface_temperature";
    String units "degree_Celsius";
  }
  TSK {
    Float64 colorBarMaximum 40.0;
    Float64 colorBarMinimum -10.0;
    String description "SURFACE SKIN TEMPERATURE";
    Int32 FieldType 104;
    String ioos_category "Temperature";
    String long_name "Surface Skin Temperature";
    String MemoryOrder "XY ";
    String standard_name "surface_temperature";
    String units "degree_Celsius";
  }
  RAINNC {
    Float64 colorBarMaximum 1.0;
    Float64 colorBarMinimum 0.0;
    String description "ACCUMULATED TOTAL GRID SCALE PRECIPITATION";
    Int32 FieldType 104;
    String ioos_category "Meteorology";
    String long_name "Lwe Thickness Of Precipitation Amount";
    String MemoryOrder "XY ";
    String standard_name "lwe_thickness_of_precipitation_amount";
    String units "mm";
  }
  SNOWNC {
    Float64 colorBarMaximum 1.0;
    Float64 colorBarMinimum 0.0;
    String description "ACCUMULATED TOTAL GRID SCALE SNOW AND ICE";
    Int32 FieldType 104;
    String ioos_category "Ice Distribution";
    String long_name "Thickness Of Snowfall Amount";
    String MemoryOrder "XY ";
    String standard_name "thickness_of_snowfall_amount";
    String units "mm";
  }
  TMN {
    Float64 colorBarMaximum 40.0;
    Float64 colorBarMinimum -10.0;
    String description "SOIL TEMPERATURE AT LOWER BOUNDARY";
    Int32 FieldType 104;
    String ioos_category "Temperature";
    String long_name "TMN";
    String MemoryOrder "XY ";
    Float32 missing_value -9999.0;
    String units "degree celsius";
  }
  NC_GLOBAL {
    String _CoordSysBuilder "ucar.nc2.dataset.conv.WRFConvention";
    Int32 BL_PBL_PHYSICS 1;
    Int32 BOTTOM_TOP_GRID_DIMENSION 43;
    Int32 BOTTOM_TOP_PATCH_END_STAG 43;
    Int32 BOTTOM_TOP_PATCH_END_UNSTAG 42;
    Int32 BOTTOM_TOP_PATCH_START_STAG 1;
    Int32 BOTTOM_TOP_PATCH_START_UNSTAG 1;
    String cdm_data_type "Grid";
    Float32 CEN_LAT 60.20001;
    Float32 CEN_LON -147.3;
    String Conventions "COARDS, CF-1.6, Unidata Dataset Discovery v1.0";
    Int32 CU_PHYSICS 1;
    Int32 DAMP_OPT 0;
    Float32 DAMPCOEF 0.2;
    Float32 DIFF_6TH_FACTOR 0.12;
    Int32 DIFF_6TH_OPT 0;
    Int32 DIFF_OPT 1;
    Float32 DT 72.0;
    Float32 DX 12000.0;
    Float32 DY 12000.0;
    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 
"2018-05-21T18:53:59Z (local files)
2018-05-21T18:53:59Z http://erddap.axiomdatascience.com/erddap/griddap/WRF_D01.das";
    Int32 I_PARENT_START 0;
    String infoUrl "???";
    String institution "???";
    Int32 ISICE 24;
    Int32 ISLAKE -1;
    Int32 ISOILWATER 14;
    Int32 ISURBAN 1;
    Int32 ISWATER 16;
    Int32 J_PARENT_START 0;
    Int32 JULDAY 236;
    Int32 JULYR 2012;
    String keywords "air, air_temperature, amount, atmosphere, atmospheric, content, cryosphere, data, depth, distribution, Earth Science > Atmosphere > Atmospheric Temperature > Air Temperature, Earth Science > Atmosphere > Atmospheric Temperature > Surface Air Temperature, Earth Science > Atmosphere > Atmospheric Winds > Surface Winds, Earth Science > Atmosphere > Precipitation > Liquid Water Equivalent, Earth Science > Atmosphere > Precipitation > Precipitation Amount, Earth Science > Atmosphere > Precipitation > Snow, Earth Science > Cryosphere > Snow/Ice > Snow Depth, Earth Science > Cryosphere > Snow/Ice > Snow Water Equivalent, Earth Science > Land Surface > Land Temperature > Land Surface Temperature, Earth Science > Oceans > Ocean Temperature > Sea Surface Temperature, Earth Science > Terrestrial Hydrosphere > Snow/Ice > Snow Depth, Earth Science > Terrestrial Hydrosphere > Snow/Ice > Snow Water Equivalent, eastward, eastward_wind, equivalent, hydrosphere, ice, ice distribution, land, liquid, liquid_water_content_of_surface_snow, local, lwe, lwe_thickness_of_precipitation_amount, meteorology, meters, northward, northward_wind, ocean, oceans, physical, precipitation, sea, sea_surface_temperature, seawater, skin, snow, snowfall, source, surface, surface_temperature, temperature, terrestrial, thickness, thickness_of_snowfall_amount, tmn, water, wind, winds";
    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 60.20001;
    Int32 MOIST_ADV_OPT 1;
    Int32 MP_PHYSICS 3;
    Int32 NUM_LAND_CAT 24;
    Int32 OBS_NUDGE_OPT 0;
    Int32 PARENT_GRID_RATIO 1;
    Int32 PARENT_ID 0;
    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 1;
    Int32 SF_SURFACE_PHYSICS 2;
    Int32 SF_URBAN_PHYSICS 0;
    Int32 SGFDDA_END_H 0;
    Int32 SGFDDA_INTERVAL_M 0;
    String SIMULATION_START_DATE "2012-08-23_00:00:00";
    Int32 SMOOTH_OPTION 0;
    String sourceUrl "(local files)";
    Int32 SOUTH_NORTH_GRID_DIMENSION 73;
    Int32 SOUTH_NORTH_PATCH_END_STAG 73;
    Int32 SOUTH_NORTH_PATCH_END_UNSTAG 72;
    Int32 SOUTH_NORTH_PATCH_START_STAG 1;
    Int32 SOUTH_NORTH_PATCH_START_UNSTAG 1;
    Int32 SST_UPDATE 0;
    Float32 STAND_LON -147.3;
    String standard_name_vocabulary "CF-12";
    String START_DATE "2012-08-23_00:00:00";
    String summary "Data from a local source.";
    Int32 SURFACE_INPUT_SOURCE 1;
    Float32 SWRAD_SCAT 1.0;
    String time_coverage_end "2013-03-02T12:00:00Z";
    String time_coverage_start "2010-11-16T00:00:00Z";
    String TITLE " OUTPUT FROM WRF V3.1.1 MODEL";
    String title "Data from a local source.";
    Int32 TKE_ADV_OPT 1;
    Float32 TRUELAT1 60.2;
    Float32 TRUELAT2 90.0;
    Int32 W_DAMPING 0;
    Int32 WEST_EAST_GRID_DIMENSION 91;
    Int32 WEST_EAST_PATCH_END_STAG 91;
    Int32 WEST_EAST_PATCH_END_UNSTAG 90;
    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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