Data Access Form

Dataset Title:	HRDPS, Salish Sea, Atmospheric Forcing Grid, Geo-location, v1
Institution:	UBC EOAS (Dataset ID: ubcSSaAtmosphereGridV1)
Information:	Summary \| License \| Metadata \| Background \| Make a graph

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Dimensions	Size	Spacing
gridY (m)	266	2500.0 (even)

gridX (m)	256	2500.0 (even)

Grid Variables (which always also download all of the dimension variables)

longitude (degrees_east)

latitude (degrees_north)

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 {
  gridY {
    Int32 _ChunkSizes 266;
    Float64 actual_range 0.0, 662500.0;
    Float64 grid_spacing 2500.0;
    String ioos_category "location";
    String long_name "Y Coordinate of Projection";
    String standard_name "projection_y_coordinate";
    String units "m";
  }
  gridX {
    Int32 _ChunkSizes 256;
    Float64 actual_range 0.0, 637500.0;
    Float64 grid_spacing 2500.0;
    String ioos_category "location";
    String long_name "X Coordinate of Projection";
    String standard_name "projection_x_coordinate";
    String units "m";
  }
  longitude {
    Int32 _ChunkSizes 266, 256;
    String ioos_category "location";
    String long_name "Longitude";
    String units "degrees_east";
  }
  latitude {
    Int32 _ChunkSizes 266, 256;
    String ioos_category "location";
    String long_name "Latitude";
    String units "degrees_north";
  }
  NC_GLOBAL {
    String acknowledgement "Environment and Climate Change Canada";
    String cdm_data_type "Grid";
    String Conventions "CF-1.6, COARDS, ACDD-1.3";
    String coverage_content_type "modelResult";
    String creator_email "sallen@eaos.ubc.ca";
    String creator_name "SalishSeaCast Project Contributors";
    String creator_url "https://salishsea-meopar-docs.readthedocs.io/";
    String drawLandMask "over";
    Int32 GRIB2_grid_template 20;
    String history 
"[Mon Mar  7 10:07:34 2016] ncks -4 -L4 -O /results/forcing/atmospheric/GEM2.5/operational/ops_y2016m03d07.nc /results/forcing/atmospheric/GEM2.5/operational/ops_y2016m03d07.nc
    [Mon Mar  7 10:07:00 2016] created by wgrib2
2025-04-25T00:02:39Z (local files)
2025-04-25T00:02:39Z https://salishsea.eos.ubc.ca/erddap/griddap/ubcSSaAtmosphereGridV1.das";
    String infoUrl "https://salishsea.eos.ubc.ca/";
    String institution "UBC EOAS";
    String institution_fullname "Dept of Earth, Ocean & Atmospheric Sciences, University of British Columbia";
    String keywords "atmosphere, HRDPS, latitude, longitude, model results, polar-stereographic grid, Salish Sea";
    String keywords_vocabulary "GCMD Science Keywords";
    String license 
"The SalishSeaCast NEMO model results are copyright
by the SalishSeaCast Project Contributors and The University of British Columbia.

They are licensed under the Apache License, Version 2.0. http://www.apache.org/licenses/LICENSE-2.0

This dataset is derived from a product of the Environment and Climate Change Canada HRDPS
(High Resolution Deterministic Prediction System) model.
The Terms and conditions of use of Meteorological Data from Environment and Climate Change Canada
are available at http://dd.weather.gc.ca/doc/LICENCE_GENERAL.txt.";
    String NCO "4.4.2";
    String project "SalishSeaCast NEMO Model";
    String sourceUrl "(local files)";
    String standard_name_vocabulary "CF Standard Name Table v29";
    String summary 
"HRDPS, SalishSeaCast, Atmospheric Forcing Grid, Geo-location, v1

Longitude and latitude of the Environment and Climate Change Canada HRDPS West polar-stereographic model grid.
This is the model grid that was used for atmospheric forcing for the SalishSeaCast NEMO model between
2014-09-12 and 2023-02-22.
The model grid includes the Juan de Fuca Strait, the Strait of Georgia, Puget Sound,
and Johnstone Strait on the coasts of Washington State and British Columbia.

v1: longitude and latitude variables";
    String title "HRDPS, Salish Sea, Atmospheric Forcing Grid, Geo-location, v1";
  }
}

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.

(easy) You can get data by using the dataset's Data Access Form. It makes the URL for you.
(easy) You can make a graph or map by using the dataset's Make A Graph form. It makes the URL for you.
(not hard) You can bypass the forms and get the data or make a graph or map by generating the URL by hand or with a computer program or script.

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.