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Dataset Title:  NOAA/NGDC 90-m Bathymetry: American Samoa Subscribe RSS
Institution:  NOAA NGDC   (Dataset ID: ngdc_bathy_90m_amsamoa)
Information:  Summary ? | License ? | FGDC | ISO 19115 | Metadata | Background (external link) | Data Access Form
Graph Type:  ?
X Axis:  ?
Y Axis:  ?
Color:  ?
Dimensions ?    Start ?    Stop ?
latitude (degrees_north) ?
< slider >
longitude (degrees_east) ?
< slider >
Graph Settings
Color Bar:   Continuity:   Scale: 
   Minimum:   Maximum:   N Sections: 
Draw land mask: 
Y Axis Minimum:   Maximum:   Ascending: 
(Please be patient. It may take a while to get the data.)
Then set the File Type: (File Type information)
or view the URL:
(Documentation / Bypass this form ? )
    Click on the map to specify a new center point. ?
[The graph you specified. Please be patient.]


Things You Can Do With Your Graphs

Well, you can do anything you want with your graphs, of course. But some things you might not have considered are:

The Dataset Attribute Structure (.das) for this Dataset

Attributes {
  latitude {
    String _CoordinateAxisType "Lat";
    Float64 actual_range -14.730000584990828, -13.829996668479865;
    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 -171.14000333152015, -169.29999532443105;
    String axis "X";
    String ioos_category "Location";
    String long_name "Longitude";
    String standard_name "longitude";
    String units "degrees_east";
  elev {
    Float32 _FillValue NaN;
    Float64 colorBarMaximum 0.0;
    Float64 colorBarMinimum -4651.0;
    String ioos_category "Bathymetry";
    String long_name "elevation";
    String positive "up";
    String standard_name "height";
    String units "meters";
    String acknowledgement "The Pacific Islands Ocean Observing System (PacIOOS) is funded through the National Oceanic and Atmospheric Administration (NOAA) as a Regional Association within the U.S. Integrated Ocean Observing System (IOOS). PacIOOS is coordinated by the University of Hawaii School of Ocean and Earth Science and Technology (SOEST).";
    String cdm_data_type "Grid";
    String comment "These data are provided by NOAA National Geophysical Data Center (NGDC) and are distributed via THREDDS Data Server (TDS) by PacIOOS.";
    String contributor_name "Jim Potemra";
    String contributor_role "distributor";
    String Conventions "CF-1.6, ACDD-1.3";
    String creator_email "";
    String creator_institution "NOAA National Geophysical Data Center (NGDC)";
    String creator_name "Dr. Barry W. Eakins";
    String creator_type "person";
    String creator_url "";
    String date_created "2009-09-30";
    String date_issued "2015-07-30";
    String date_metadata_modified "2017-01-30";
    String date_modified "2009-09-30";
    Float64 Easternmost_Easting -169.29999532443105;
    String geospatial_bounds "POLYGON ((-14.7300 -171.1400, -13.8300 -171.1400, -13.8300 -169.3000, -14.7300 -169.3000, -14.7300 -171.1400))";
    String geospatial_bounds_crs "EPSG:4326";
    Float64 geospatial_lat_max -13.829996668479865;
    Float64 geospatial_lat_min -14.730000584990828;
    Float64 geospatial_lat_resolution 8.333369597323732e-4;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -169.29999532443105;
    Float64 geospatial_lon_min -171.14000333152015;
    Float64 geospatial_lon_resolution 8.333369597323806e-4;
    String geospatial_lon_units "degrees_east";
    String history 
"PacIOOS converted to NetCDF to provide OPeNDAP, OGC, and related data services (07/30/2015).
2018-02-18T07:17:32Z http://localhost:8080/thredds/dodsC/ngdc_bathy_90m_amsamoa
    String id "ngdc_bathy_90m_amsamoa";
    String infoUrl "";
    String institution "NOAA NGDC";
    String instrument "In Situ/Laboratory Instruments > Profilers/Sounders > Acoustic Sounders > Sonar";
    String instrument_vocabulary "GCMD Instrument Keywords";
    String ISO_Topic_Categories "elevation, oceans";
    String keywords "Earth Science > Oceans > Bathymetry/Seafloor Topography > Bathymetry";
    String keywords_vocabulary "GCMD Science Keywords";
    String license "The data may be used and redistributed for free but is not intended for navigational or legal use, since it may contain inaccuracies. Neither the data Contributor, University of Hawaii, PacIOOS, NOAA, State of Hawaii 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 locations "Ocean > Pacific Ocean > South Pacific Ocean > Polynesia > American Samoa > Ofu, Ocean > Pacific Ocean > South Pacific Ocean > Polynesia > American Samoa > Olosega, Ocean > Pacific Ocean > South Pacific Ocean > Polynesia > American Samoa > Tau, Ocean > Pacific Ocean > South Pacific Ocean > Polynesia > American Samoa > Tutuila";
    String locations_vocabulary "GCMD Location Keywords";
    String Metadata_Link "";
    String naming_authority "org.pacioos";
    Float64 Northernmost_Northing -13.829996668479865;
    String platform "In Situ Ocean-based Platforms > Ships, Models/Analyses > > DEM > Digital Elevation Model";
    String platform_vocabulary "GCMD Platform Keywords";
    String program "Pacific Islands Ocean Observing System (PacIOOS)";
    String project "Pacific Islands Ocean Observing System (PacIOOS)";
    String publisher_email "";
    String publisher_institution "University of Hawaii";
    String publisher_name "Pacific Islands Ocean Observing System (PacIOOS)";
    String publisher_type "group";
    String publisher_url "";
    String references ",,";
    String source "multibeam sonar";
    String sourceUrl "http://localhost:8080/thredds/dodsC/ngdc_bathy_90m_amsamoa";
    Float64 Southernmost_Northing -14.730000584990828;
    String standard_name_vocabulary "CF Standard Name Table v39";
    String summary "A 90-m (3 arc-second) resolution gridded digital elevation model (DEM) for the bathymetry (ocean depth) surrounding American Samoa, including the islands of Tutuila, Ofu, Olosega, and Tau. It is referenced to a vertical tidal datum of Mean High Water (MHW) and was compiled from various data sources including: NOAA National Geophysical Data Center (NGDC); the U.S. Geological Survey (USGS); Naval Oceanographic Office (NAVOCEANO); Gaia Geo Analytical; and other federal, state, and local government agencies, academic institutions, and private companies. Developed for the National Tsunami Hazard Mitigation Program (NTHMP) to support NOAA's tsunami forecasting and modeling efforts. Not to be used for navigational purposes. When using these data, please cite: Lim, E., L.A. Taylor, B.W. Eakins, K.S. Carignan, P.R. Grothe, R.J. Caldwell, and D.Z. Friday 2010. Digital Elevation Models of Pago Pago, American Samoa: Procedures, Data Sources and Analysis, NOAA Technical Memorandum NESDIS NGDC-36, Dept. of Commerce, Boulder, CO, 26 pp.  For further details, please see:";
    String time_coverage_duration "P0D";
    String time_coverage_resolution "P0D";
    String title "NOAA/NGDC 90-m Bathymetry: American Samoa";
    Float64 Westernmost_Easting -171.14000333152015;


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{?query}
For example,[(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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