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Dataset Title:  U.S. Virgin Islands Coastal Digital Elevation Model (Regional, usvi 1 mhw
2014), 2.7777778E-4°
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Institution:  NOAA   (Dataset ID: noaa_ngdc_d062_85af_0bf3)
Information:  Summary ? | License ? | FGDC | ISO 19115 | Metadata | Background (external link) | Make a graph
 
Dimensions ? Start ? Stride ? Stop ?  Size ?    Spacing ?
 latitude (degrees_north) ?      7201    2.777778E-4 (even)
  < slider >
 longitude (degrees_east) ?      4141    2.777778E-4 (even)
  < slider >
 
Grid Variables (which always also download all of the dimension variables)
 Band1 (GDAL Band Number 1, meters) ?

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 {
  latitude {
    String _CoordinateAxisType "Lat";
    Float64 actual_range 16.999722, 18.99972199944;
    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 -65.15, -64.00000000032202;
    String axis "X";
    String ioos_category "Location";
    String long_name "Longitude";
    String standard_name "longitude";
    String units "degrees_east";
  }
  Band1 {
    Float32 _FillValue -9999.0;
    Float64 colorBarMaximum 100.0;
    Float64 colorBarMinimum 0.0;
    String grid_mapping "crs";
    String ioos_category "Statistics";
    String long_name "GDAL Band Number 1";
    String positive "up";
    String units "meters";
  }
  NC_GLOBAL {
    String cdm_data_type "Grid";
    String comment "Developed for the Pacific Marine Environmental Laboratory (PMEL), NOAA Center for Tsunami Research program in support of NOAA's tsunami forecasting and warning efforts.";
    String Conventions "ACDD 1.3, CF-1.6, COARDS";
    String creator_email "dem.info@noaa.gov";
    String creator_institution "DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce; publisher; DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce; 303-497-6826; 303-497-6513; 325 Broadway; Boulder; CO; 80305-3328; USA; ngdc.info@noaa.gov; custodian; DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce; 303-497-6826; 303-497-6513; 325 Broadway; Boulder; CO; 80305-3328; USA; ngdc.info@noaa.gov; originator; DOC/NOAA/NESDIS/NGDC > National Geophysical Data Center, NESDIS, NOAA, U.S. Department of Commerce; originator";
    String creator_name "National Centers for Environmental Information";
    String creator_type "group";
    String creator_url "https://www.ngdc.noaa.gov/mgg/bathymetry/relief.html";
    String date_issued "2014-07-30";
    String date_metadata_modified "2016-07-28";
    Float64 Easternmost_Easting -64.00000000032202;
    String GDAL "GDAL 1.11.4, released 2016/01/25";
    String GDAL_AREA_OR_POINT "Point";
    String geospatial_bounds_crs "World Geodetic System 1984";
    String geospatial_bounds_vertical_crs "Mean High Water height";
    Float64 geospatial_lat_max 18.99972199944;
    Float64 geospatial_lat_min 16.999722;
    Float64 geospatial_lat_resolution 2.777777777e-4;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -64.00000000032202;
    Float64 geospatial_lon_min -65.15;
    Float64 geospatial_lon_resolution 2.7777777769999706e-4;
    String geospatial_lon_units "degrees_east";
    String GMT_version "4.5.13 [64-bit]";
    String history 
"Tue Jul 26 17:38:13 2016: GDAL CreateCopy( /nfs/metadata_working/DEM/us_virgin_islands_vi_1s_mhw_update.nc, ... )
2018-02-19T02:28:20Z https://www.ngdc.noaa.gov/thredds/dodsC/regional/usvi_1_mhw_2014.nc
2018-02-19T02:28:20Z http://upwell.pfeg.noaa.gov/erddap/griddap/noaa_ngdc_d062_85af_0bf3.das";
    String id "regionalDatasetScan.usvi_1_mhw_2014.nc";
    String infoUrl "https://www.ngdc.noaa.gov/mgg/coastal/crm.html";
    String institution "NOAA";
    String keywords "band, Band1, bathymetry, bathymetry/seafloor, coastal, coastal relief, data, dem, DEM > Digital Elevation Model, depth, digital, earth, Earth Science > Land Surface > Topography > Terrain Elevation, Earth Science > Land Surface > Topography > Topographical Relief Maps, Earth Science > Oceans > Bathymetry/Seafloor Topography > Bathymetry, Earth Science > Oceans > Bathymetry/Seafloor Topography > Seafloor Topography, Earth Science > Oceans > Bathymetry/Seafloor Topography > Water Depth, Earth Science > Oceans > Coastal Processes > Coastal Elevation, elevation, gdal, gridded elevations, h: 1 meter - < 30 meters, integrated bathymetry and topography, islands, land, latitude, longitude, maps, mhw, model, noaa, number, ocean, oceans, processes, regional, relief, science, seafloor, statistics, surface, terrain, topographical, topography, US, usvi, v: 1 meter - < 10 meters, virgin, water";
    String keywords_vocabulary "GCMD Science Keywords";
    String license "Not to be used for navigation. Although these data are of high quality and useful for planning and modeling purposes, they are not suitable for navigation. For navigation, please refer to the NOS nautical chart series.; Produced by the NOAA National Geophysical Data Center. Not subject to copyright protection within the United States.; While every effort has been made to ensure that these data are accurate and reliable within the limits of the current state of the art, NOAA cannot assume liability for any damages caused by any errors or omissions in the data, nor as a result of the failure of the data to function on a particular system. NOAA makes no warranty, expressed or implied, nor does the fact of distribution constitute such a warranty.";
    String naming_authority "gov.noaa.ngdc.mgg.dem";
    Int32 node_offset 1;
    Float64 Northernmost_Northing 18.99972199944;
    String product_version "Second";
    String project "ICSU-WDS > International Council for Science - World Data System";
    String publisher_email "dem.info@noaa.gov";
    String publisher_name "National Centers for Environmental Information";
    String publisher_type "institution";
    String publisher_url "https://www.ngdc.noaa.gov/mgg/bathymetry/relief.html";
    String references "U.S. Virgin Islands Coastal Digital Elevation Model";
    String source "Electronic Navigational Charts and Raster Nautical Charts; St. Croix, VI 1/3 arc-second MHW DEM; St. Thomas-St. John, VI 1/3 arc-second MHW DEM; U.S. Virgin Islands 1 arc-second MHW DEM; 2011 NOAA Bathymetric Lidar: U.S. Virgin Islands - St. Thomas, St. John, St. Croix (Salt River Bay, Buck Island); 2013 NOAA Lidar: U.S. Virgin Islands; 2007 US Army Corps of Engineers (USACE), Jacksonville District US Virgin Islands LiDAR; 2003 U.S. Geological Survey (USGS) Experimental Advanced Airborne Research Lidar (EAARL): US Virgin Islands (St. John, St. Croix)";
    String sourceUrl "https://www.ngdc.noaa.gov/thredds/dodsC/regional/usvi_1_mhw_2014.nc";
    Float64 Southernmost_Northing 16.999722;
    String standard_name_vocabulary "CF Standard Name Table v29";
    String summary "U.S. Virgin Islands Coastal Digital Elevation Model. The 1 arc-second Virgin Islands DEM will be used to support NOAA's tsunami forecast system and for tsunami inundation modeling. This DEM encompasses the Virgin Islands and the adjacent off-shore coastal area.";
    String title "U.S. Virgin Islands Coastal Digital Elevation Model (Regional, usvi 1 mhw 2014), 2.7777778E-4°";
    Float64 Westernmost_Easting -65.15;
  }
}

 

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://upwell.pfeg.noaa.gov/erddap/griddap/datasetID.fileType{?query}
For example,
https://upwell.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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