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Dataset Title:  US National Weather Service - NCEP(WMC) Global Multi-Grid Wave Model Forecast
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Institution:  WMC (7)   (Dataset ID: WAVE_3)
Information:  Summary ? | License ? | FGDC | ISO 19115 | Metadata | Background (external link) | Make a graph
 
Dimensions ? Start ? Stride ? Stop ?  Size ?    Spacing ?
 time (UTC) ?      10464    2h 52m 23s (uneven)
  < slider >
 latitude (degrees_north) ?      187    -0.166667 (even)
  < slider >
 longitude (degrees_east) ?      401    0.25 (even)
  < slider >
 
Grid Variables (which always also download all of the dimension variables)
 U_component_of_wind (U-component_of_wind @ surface, m.s-1) ?
 Significant_height_of_swell_waves (m) ?
 Significant_height_of_wind_waves (m) ?
 Direction_of_swell_waves (degrees) ?
 Mean_period_of_swell_waves (s) ?
 Mean_period_of_wind_waves (s) ?
 Significant_height_of_combined_wind_waves_and_swell (m) ?
 Direction_of_wind_waves (degrees) ?
 Primary_wave_direction (degrees) ?
 V_component_of_wind (V-component_of_wind @ surface, m.s-1) ?
 Primary_wave_mean_period (s) ?

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 1.3963104e+9, 1.5045264e+9;
    String axis "T";
    String ioos_category "Time";
    String long_name "the time the model represents";
    String standard_name "time";
    String time_origin "01-JAN-1970 00:00:00";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float64 actual_range 43.9999381005764, 75.0;
    String axis "Y";
    String grid_spacing "-0.16666699945926666 degrees_north";
    String ioos_category "Location";
    String long_name "Latitude";
    String standard_name "latitude";
    String units "degrees_north";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float64 actual_range 140.0, 240.0;
    String axis "X";
    String grid_spacing "0.25 degrees_east";
    String ioos_category "Location";
    String long_name "Longitude";
    String standard_name "longitude";
    String units "degrees_east";
  }
  U_component_of_wind {
    Float64 colorBarMaximum 15.0;
    Float64 colorBarMinimum -15.0;
    String GRIB_generating_process_type "Forecast";
    Int32 GRIB_level_type 1;
    String GRIB_level_type_name "surface";
    String GRIB_param_category "Momentum";
    String GRIB_param_discipline "Meteorological_products";
    Int32 GRIB_param_id 2, 0, 2, 2;
    String GRIB_param_name "U-component_of_wind";
    Int32 GRIB_product_definition_template 0;
    String GRIB_product_definition_template_desc "Analysis/forecast at horizontal level/layer at a point in time";
    String GRIB_VectorComponentFlag "easterlyNortherlyRelative";
    String ioos_category "Wind";
    String long_name "U-component_of_wind @ surface";
    Float32 missing_value NaN;
    String standard_name "eastward_wind";
    String units "m.s-1";
  }
  Significant_height_of_swell_waves {
    Float64 colorBarMaximum 10.0;
    Float64 colorBarMinimum 0.0;
    String GRIB_generating_process_type "Forecast";
    Int32 GRIB_level_type 241;
    String GRIB_level_type_name "ordered_sequence_of_data";
    String GRIB_param_category "Waves";
    String GRIB_param_discipline "Oceanographic_products";
    Int32 GRIB_param_id 2, 10, 0, 8;
    String GRIB_param_name "Significant_height_of_swell_waves";
    Int32 GRIB_product_definition_template 0;
    String GRIB_product_definition_template_desc "Analysis/forecast at horizontal level/layer at a point in time";
    String GRIB_VectorComponentFlag "easterlyNortherlyRelative";
    String ioos_category "Surface Waves";
    String long_name "Significant_height_of_swell_waves @ ordered_sequence_of_data";
    Float32 missing_value NaN;
    String standard_name "sea_surface_swell_wave_significant_height";
    String units "m";
  }
  Significant_height_of_wind_waves {
    Float64 colorBarMaximum 10.0;
    Float64 colorBarMinimum 0.0;
    String GRIB_generating_process_type "Forecast";
    Int32 GRIB_level_type 1;
    String GRIB_level_type_name "surface";
    String GRIB_param_category "Waves";
    String GRIB_param_discipline "Oceanographic_products";
    Int32 GRIB_param_id 2, 10, 0, 5;
    String GRIB_param_name "Significant_height_of_wind_waves";
    Int32 GRIB_product_definition_template 0;
    String GRIB_product_definition_template_desc "Analysis/forecast at horizontal level/layer at a point in time";
    String GRIB_VectorComponentFlag "easterlyNortherlyRelative";
    String ioos_category "Surface Waves";
    String long_name "Significant_height_of_wind_waves @ surface";
    Float32 missing_value NaN;
    String standard_name "sea_surface_wind_wave_significant_height";
    String units "m";
  }
  Direction_of_swell_waves {
    Float64 colorBarMaximum 360.0;
    Float64 colorBarMinimum 0.0;
    String GRIB_generating_process_type "Forecast";
    Int32 GRIB_level_type 241;
    String GRIB_level_type_name "ordered_sequence_of_data";
    String GRIB_param_category "Waves";
    String GRIB_param_discipline "Oceanographic_products";
    Int32 GRIB_param_id 2, 10, 0, 7;
    String GRIB_param_name "Direction_of_swell_waves";
    Int32 GRIB_product_definition_template 0;
    String GRIB_product_definition_template_desc "Analysis/forecast at horizontal level/layer at a point in time";
    String GRIB_VectorComponentFlag "easterlyNortherlyRelative";
    String ioos_category "Surface Waves";
    String long_name "Direction_of_swell_waves @ ordered_sequence_of_data";
    Float32 missing_value NaN;
    String standard_name "sea_surface_swell_wave_to_direction";
    String units "degrees";
  }
  Mean_period_of_swell_waves {
    Float64 colorBarMaximum 20.0;
    Float64 colorBarMinimum 0.0;
    String GRIB_generating_process_type "Forecast";
    Int32 GRIB_level_type 241;
    String GRIB_level_type_name "ordered_sequence_of_data";
    String GRIB_param_category "Waves";
    String GRIB_param_discipline "Oceanographic_products";
    Int32 GRIB_param_id 2, 10, 0, 9;
    String GRIB_param_name "Mean_period_of_swell_waves";
    Int32 GRIB_product_definition_template 0;
    String GRIB_product_definition_template_desc "Analysis/forecast at horizontal level/layer at a point in time";
    String GRIB_VectorComponentFlag "easterlyNortherlyRelative";
    String ioos_category "Surface Waves";
    String long_name "Mean_period_of_swell_waves @ ordered_sequence_of_data";
    Float32 missing_value NaN;
    String standard_name "sea_surface_swell_wave_period";
    String units "s";
  }
  Mean_period_of_wind_waves {
    Float64 colorBarMaximum 20.0;
    Float64 colorBarMinimum 0.0;
    String GRIB_generating_process_type "Forecast";
    Int32 GRIB_level_type 1;
    String GRIB_level_type_name "surface";
    String GRIB_param_category "Waves";
    String GRIB_param_discipline "Oceanographic_products";
    Int32 GRIB_param_id 2, 10, 0, 6;
    String GRIB_param_name "Mean_period_of_wind_waves";
    Int32 GRIB_product_definition_template 0;
    String GRIB_product_definition_template_desc "Analysis/forecast at horizontal level/layer at a point in time";
    String GRIB_VectorComponentFlag "easterlyNortherlyRelative";
    String ioos_category "Surface Waves";
    String long_name "Mean_period_of_wind_waves @ surface";
    Float32 missing_value NaN;
    String standard_name "sea_surface_wind_wave_period";
    String units "s";
  }
  Significant_height_of_combined_wind_waves_and_swell {
    String GRIB_generating_process_type "Forecast";
    Int32 GRIB_level_type 1;
    String GRIB_level_type_name "surface";
    String GRIB_param_category "Waves";
    String GRIB_param_discipline "Oceanographic_products";
    Int32 GRIB_param_id 2, 10, 0, 3;
    String GRIB_param_name "Significant_height_of_combined_wind_waves_and_swell";
    Int32 GRIB_product_definition_template 0;
    String GRIB_product_definition_template_desc "Analysis/forecast at horizontal level/layer at a point in time";
    String GRIB_VectorComponentFlag "easterlyNortherlyRelative";
    String ioos_category "Surface Waves";
    String long_name "Significant_height_of_combined_wind_waves_and_swell @ surface";
    Float32 missing_value NaN;
    String standard_name "sea_surface_wave_height_above_geoid";
    String units "m";
  }
  Direction_of_wind_waves {
    Float64 colorBarMaximum 360.0;
    Float64 colorBarMinimum 0.0;
    String GRIB_generating_process_type "Forecast";
    Int32 GRIB_level_type 1;
    String GRIB_level_type_name "surface";
    String GRIB_param_category "Waves";
    String GRIB_param_discipline "Oceanographic_products";
    Int32 GRIB_param_id 2, 10, 0, 4;
    String GRIB_param_name "Direction_of_wind_waves";
    Int32 GRIB_product_definition_template 0;
    String GRIB_product_definition_template_desc "Analysis/forecast at horizontal level/layer at a point in time";
    String GRIB_VectorComponentFlag "easterlyNortherlyRelative";
    String ioos_category "Surface Waves";
    String long_name "Direction_of_wind_waves @ surface";
    Float32 missing_value NaN;
    String standard_name "sea_surface_wind_wave_to_direction";
    String units "degrees";
  }
  Primary_wave_direction {
    Float64 colorBarMaximum 360.0;
    Float64 colorBarMinimum 0.0;
    String GRIB_generating_process_type "Forecast";
    Int32 GRIB_level_type 1;
    String GRIB_level_type_name "surface";
    String GRIB_param_category "Waves";
    String GRIB_param_discipline "Oceanographic_products";
    Int32 GRIB_param_id 2, 10, 0, 10;
    String GRIB_param_name "Primary_wave_direction";
    Int32 GRIB_product_definition_template 0;
    String GRIB_product_definition_template_desc "Analysis/forecast at horizontal level/layer at a point in time";
    String GRIB_VectorComponentFlag "easterlyNortherlyRelative";
    String ioos_category "Surface Waves";
    String long_name "Primary_wave_direction @ surface";
    Float32 missing_value NaN;
    String standard_name "directional_degrees_primary_waves";
    String units "degrees";
  }
  V_component_of_wind {
    Float64 colorBarMaximum 15.0;
    Float64 colorBarMinimum -15.0;
    String GRIB_generating_process_type "Forecast";
    Int32 GRIB_level_type 1;
    String GRIB_level_type_name "surface";
    String GRIB_param_category "Momentum";
    String GRIB_param_discipline "Meteorological_products";
    Int32 GRIB_param_id 2, 0, 2, 3;
    String GRIB_param_name "V-component_of_wind";
    Int32 GRIB_product_definition_template 0;
    String GRIB_product_definition_template_desc "Analysis/forecast at horizontal level/layer at a point in time";
    String GRIB_VectorComponentFlag "easterlyNortherlyRelative";
    String ioos_category "Wind";
    String long_name "V-component_of_wind @ surface";
    Float32 missing_value NaN;
    String standard_name "northward_wind";
    String units "m.s-1";
  }
  Primary_wave_mean_period {
    Float64 colorBarMaximum 20.0;
    Float64 colorBarMinimum 0.0;
    String GRIB_generating_process_type "Forecast";
    Int32 GRIB_level_type 1;
    String GRIB_level_type_name "surface";
    String GRIB_param_category "Waves";
    String GRIB_param_discipline "Oceanographic_products";
    Int32 GRIB_param_id 2, 10, 0, 11;
    String GRIB_param_name "Primary_wave_mean_period";
    Int32 GRIB_product_definition_template 0;
    String GRIB_product_definition_template_desc "Analysis/forecast at horizontal level/layer at a point in time";
    String GRIB_VectorComponentFlag "easterlyNortherlyRelative";
    String ioos_category "Surface Waves";
    String long_name "Primary_wave_mean_period @ surface";
    Float32 missing_value NaN;
    String standard_name "sea_surface_swell_wave_period";
    String units "s";
  }
  NC_GLOBAL {
    String _CoordinateModelRunDate "2015-06-26T12:00:00Z";
    String _CoordSysBuilder "ucar.nc2.dataset.conv.CF1Convention";
    String cdm_data_type "Grid";
    String CF_feature_type "GRID";
    String Conventions "CF-1.6, COARDS, Unidata Dataset Discovery v1.0";
    String creator_name "WMC (7)";
    Float64 Easternmost_Easting 240.0;
    String file_format "GRIB-2";
    String Generating_Model "Global Multi-Grid Wave Model";
    Float64 geospatial_lat_max 75.0;
    Float64 geospatial_lat_min 43.9999381005764;
    Float64 geospatial_lat_resolution 0.16666699945926666;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max 240.0;
    Float64 geospatial_lon_min 140.0;
    Float64 geospatial_lon_resolution 0.25;
    String geospatial_lon_units "degrees_east";
    String history 
"Direct read of GRIB-2 into NetCDF-Java 4 API
2018-02-25T02:06:52Z (local files)
2018-02-25T02:06:52Z http://erddap.axiomdatascience.com/erddap/griddap/WAVE_3.das";
    String infoUrl "???";
    String institution "WMC (7)";
    String keywords "above, combined, data, degrees, direction, directional, directional_degrees_primary_waves, Earth Science > Oceans > Ocean Waves > Significant Wave Height, Earth Science > Oceans > Ocean Waves > Swells, Earth Science > Oceans > Ocean Waves > Wave Period, Earth Science > Oceans > Ocean Waves > Wave Speed/Direction, Earth Science > Oceans > Ocean Waves > Wind Waves, forecast, geoid, global, grid, height, mean, model, multi, multi-grid, national, ncep, ocean, oceans, ordered, period, primary, products, sea, sea_surface_swell_wave_period, sea_surface_swell_wave_significant_height, sea_surface_swell_wave_to_direction, sea_surface_wave_height_above_geoid, sea_surface_wind_wave_period, sea_surface_wind_wave_significant_height, sea_surface_wind_wave_to_direction, sequence, service, significant, speed, surface, surface waves, swell, swells, wave, waves, weather, wind, wmc";
    String keywords_vocabulary "GCMD Science Keywords";
    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 location "/mnt/gluster/data/netCDF/wave3/wave_2015.177.17.org";
    String Metadata_Conventions "CF-1.6, COARDS, Unidata Dataset Discovery v1.0";
    Float64 Northernmost_Northing 75.0;
    String original_institution "Center US National Weather Service - NCEP(WMC) (7)";
    String Originating_center "US National Weather Service - NCEP(WMC) (7)";
    String Product_Status "Operational products";
    String Product_Type "Forecast products";
    String source "Type: Forecast products Status: Operational products";
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 43.9999381005764;
    String standard_name_vocabulary "CF-12";
    String summary "US National Weather Service - NCEP(WMC) Global Multi-Grid Wave Model Forecast products";
    String time_coverage_end "2017-09-04T12:00:00Z";
    String time_coverage_start "2014-04-01T00:00:00Z";
    String title "US National Weather Service - NCEP(WMC) Global Multi-Grid Wave Model Forecast products";
    Float64 Westernmost_Easting 140.0;
  }
}

 

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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