ERDDAP
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Dataset Title: | Global HYCOM Surface , 2D aggregation |
Institution: | Naval Oceanographic Office via NOAA NCEI (Dataset ID: Hycom_sfc_2d) |
Information: | Summary | License | FGDC | ISO 19115 | Metadata | Background | Data Access Form |
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Attributes { time { String _CoordinateAxisType "Time"; Float64 actual_range 1.3624416e+9, 1.7254836e+9; String axis "T"; String calendar "proleptic_gregorian"; String ioos_category "Time"; String long_name "Forecast time for ForecastModelRunCollection"; Float64 missing_value NaN; 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 -80.0, 80.0; String axis "Y"; String ioos_category "Location"; String long_name "Latitude"; Int32 NAVO_code 1; String point_spacing "even"; String standard_name "latitude"; String units "degrees_north"; } longitude { String _CoordinateAxisType "Lon"; Float64 actual_range 0.0, 359.9200439453125; String axis "X"; String ioos_category "Location"; String long_name "Longitude"; String modulo "360 degrees"; Int32 NAVO_code 2; String standard_name "longitude"; String units "degrees_east"; } surf_el { String coordinates "time_run time lat lon"; String ioos_category "Other"; String long_name "Water Surface Elevation"; Int32 NAVO_code 32; String units "meter"; } NC_GLOBAL { String _CoordSysBuilder "ucar.nc2.dataset.conv.CF1Convention"; String analysis_tau "030 hours since analysis, analysis_time_origin = 2024-09-03 12:00:00"; String cdm_data_type "Grid"; String comment "..."; String contact "FNMOC, CDO"; String Conventions "Global NCOM"; String creator_name "kelly.r.wood@navy.mil; jeffery.rayburn@navy.mil"; String distribution_statement "Approved for public release; distribution unlimited."; Float64 Easternmost_Easting 359.9200439453125; String field_type "instantaneous"; String generating_model "GOFS 3.1, Global HYCOM with OSU tides"; Float64 geospatial_lat_max 80.0; Float64 geospatial_lat_min -80.0; String geospatial_lat_units "degrees_north"; Float64 geospatial_lon_max 359.9200439453125; Float64 geospatial_lon_min 0.0; String geospatial_lon_units "degrees_east"; String history "created on 20240904 ; FMRC Best Dataset 2024-12-03T17:53:56Z https://www.ncei.noaa.gov/thredds-coastal/dodsC/hycom/hycom_sfc_agg/HYCOM_Surface_Aggregation_best.ncd 2024-12-03T17:53:56Z https://coastwatch.pfeg.noaa.gov/griddap/Hycom_sfc_2d.das"; String infoUrl "https://www.ncei.noaa.gov/thredds-coastal/catalog/hycom/hycom_sfc_agg/catalog.html?dataset=hycom/hycom_sfc_agg/HYCOM_Surface_Aggregation_best.ncd"; String input_data_source "FNMOC NAVGEM, Satellite SSH, SST, in situ"; String institution "Naval Oceanographic Office via NOAA NCEI"; 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 "Proto fmrc:HYCOM_Surface_Aggregation"; String message "UNCLASSIFIED"; String model_type "x-curvilinear lon, y-curvilinear lat, hybrid z"; Float64 Northernmost_Northing 80.0; String operational_status "operational"; String publisher_name "OceanNOMADS@noaa.gov"; String reference "https://portal.fnmoc.navy.mil/"; String source "HYCOM archive file; GOFS 3.1 GLBy0.08 expt_93.0"; String sourceUrl "https://www.ncei.noaa.gov/thredds-coastal/dodsC/hycom/hycom_sfc_agg/HYCOM_Surface_Aggregation_best.ncd"; Float64 Southernmost_Northing -80.0; String standard_name_vocabulary "CF-1.0"; String summary "Globale HYCOM Surface, 2-dimensional time series fields from the best time series aggregation."; String time_coverage_end "2024-09-04T21:00:00Z"; String time_coverage_start "2013-03-05T00:00:00Z"; String time_origin "2024-09-04 00:00:00"; String title "Global HYCOM Surface , 2D aggregation"; Float64 Westernmost_Easting 0.0; } }
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.