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Dataset Title:  Tide Model for the Hawaiian Islands: Main NW Islands: Tidal Elevation Subscribe RSS
Institution:  University of Hawaii   (Dataset ID: tide_mhi_elev)
Information:  Summary ? | License ? | FGDC | ISO 19115 | Metadata | Background (external link) | Data Access Form
Graph Type:  ?
X Axis:  ?
Y Axis:  ?
Color:  ?
Dimensions ?    Start ?    Stop ?
time (UTC) ?     specify just 1 value →
    |< -
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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:   
(Please be patient. It may take a while to get the data.)
Then set the File Type: (File Type information)
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    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 {
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.5436224e+9, 1.5778332e+9;
    String axis "T";
    String ioos_category "Time";
    String long_name "Time";
    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 20.48, 22.89;
    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 -160.69, -155.49;
    String axis "X";
    String ioos_category "Location";
    String long_name "Longitude";
    String standard_name "longitude";
    String units "degrees_east";
  ssh {
    Float64 _FillValue -999.99;
    String ioos_category "Sea Level";
    String long_name "tidal elevation";
    Float64 missing_value -999.99;
    String standard_name "sea_surface_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 "Model runs produced by Dr. Glenn Carter (";
    String contributor_name "Jim Potemra";
    String contributor_role "distributor";
    String Conventions "CF-1.6, ACDD-1.3";
    String creator_email "";
    String creator_institution "University of Hawaii";
    String creator_name "Glenn Carter";
    String creator_type "person";
    String creator_url "";
    String date_created "2010-11-10";
    String date_issued "2010-11-10";
    String date_metadata_modified "2018-12-31";
    String date_modified "2018-12-31";
    Float64 Easternmost_Easting -155.49;
    String geospatial_bounds "POLYGON ((20.48 -160.69, 22.89 -160.69, 22.89 -155.49, 20.48 -155.49, 20.48 -160.69))";
    String geospatial_bounds_crs "EPSG:4326";
    Float64 geospatial_lat_max 22.89;
    Float64 geospatial_lat_min 20.48;
    Float64 geospatial_lat_resolution 0.01;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -155.49;
    Float64 geospatial_lon_min -160.69;
    Float64 geospatial_lon_resolution 0.009999999999999978;
    String geospatial_lon_units "degrees_east";
    String history 
"UH/SOEST (G. Carter), PacIOOS model (11/2010), variables combined and common date reference established in archive (5/2011), limited archive to 2016 (8/2016), limited archive to 2017 (12/2016), limited archive to 2018 (12/2017), limited archive to 2019 (12/2018)
2019-09-19T17:39:24Z http://localhost:8080/thredds/dodsC/hioos/tide_mhi
    String id "tide_mhi";
    String infoUrl "";
    String institution "University of Hawaii";
    String instrument "Not Applicable > Not Applicable";
    String instrument_vocabulary "GCMD Instrument Keywords";
    String ISO_Topic_Categories "oceans";
    String keywords "Earth Science > Oceans > Ocean Circulation > Ocean Currents, Earth Science > Oceans > Sea Surface Topography > Sea Surface Height, Earth Science > Oceans > Tides > Tidal Height, Earth Science Services > Models > Ocean General Circulation Models (OGCM)/Regional Ocean Models, Earth Science Services > Models > Weather Research/Forecast Models";
    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, 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 "Continent > North America > United States Of America > Hawaii, Ocean > Pacific Ocean > Central Pacific Ocean > Hawaiian Islands > Kahoolawe, Ocean > Pacific Ocean > Central Pacific Ocean > Hawaiian Islands > Kauai, Ocean > Pacific Ocean > Central Pacific Ocean > Hawaiian Islands > Lanai, Ocean > Pacific Ocean > Central Pacific Ocean > Hawaiian Islands > Maui, Ocean > Pacific Ocean > Central Pacific Ocean > Hawaiian Islands > Molokai, Ocean > Pacific Ocean > Central Pacific Ocean > Hawaiian Islands > Niihau, Ocean > Pacific Ocean > Central Pacific Ocean > Hawaiian Islands > Oahu";
    String locations_vocabulary "GCMD Location Keywords";
    String Metadata_Link "";
    String naming_authority "org.pacioos";
    Float64 Northernmost_Northing 22.89;
    String platform "Models/Analyses > > Operational Models";
    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 "Hawaiian Islands tide model";
    String sourceUrl "http://localhost:8080/thredds/dodsC/hioos/tide_mhi";
    Float64 Southernmost_Northing 20.48;
    String standard_name_vocabulary "CF Standard Name Table v39";
    String summary "Tide model for the Hawaiian Islands.  The model is based on climatological stratification, but 64 harmonics are used to model the full-depth baroclinic tides.  The model has been run at 1km resolution, hourly, through the end of 2019. Due to computing limitations, the model grid is divided into two pieces, one for the Northwestern main Hawaiian Islands (Kauai, Oahu, Maui) and the other for the Big Island.  While considerable effort has been made to implement all model components in a thorough, correct, and accurate manner, numerous sources of error are possible. As such, please use this output with the caution appropriate for any ocean related activity.";
    String time_coverage_end "2019-12-31T23:00:00Z";
    String time_coverage_resolution "PT1H";
    String time_coverage_start "2018-12-01T00:00:00Z";
    String title "Tide Model for the Hawaiian Islands: Main NW Islands: Tidal Elevation";
    Float64 Westernmost_Easting -160.69;


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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