Data Access Form

Dataset Title:	Forecast, Halfmoon Bay, Sea Surface Height, 10min
Institution:	UBC EOAS (Dataset ID: ubcSSfHalfmoonBaySSH10m)
Information:	Summary \| License \| FGDC \| ISO 19115 \| Metadata \| Background \| Make a graph

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Dimensions	Size	Spacing
time (Time axis, UTC)	1080	10m 0s (even)

longitude (degrees_east)	1	(just one value)

latitude (degrees_north)	1	(just one value)

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

ssh (Sea Surface Height, m)

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 {
  time {
    String _CoordinateAxisType "Time";
    Float64 actual_range 1.7326659e+9, 1.7333133e+9;
    String axis "T";
    String bounds "time_counter_bounds";
    String calendar "gregorian";
    String comment "time values are UTC at the centre of the intervals over which the calculated model results are averaged; e.g. the field average values for the 00:00 to 0:10 UTC 10 minute period on 2021-06-03 have a time value of 2021-06-03 00:05:00Z";
    String coverage_content_type "modelResult";
    String ioos_category "Time";
    String long_name "Time axis";
    String standard_name "time";
    String time_origin "01-JAN-1970 00:00:00";
    String units "seconds since 1970-01-01T00:00:00Z";
  }
  longitude {
    String _CoordinateAxisType "Lon";
    Float32 actual_range -123.9098, -123.9098;
    String axis "X";
    String bounds "bounds_nav_lon";
    String colorBarMaximum "-121.0";
    String colorBarMinimum "-127.0";
    String coverage_content_type "modelResult";
    String ioos_category "Location";
    String long_name "Longitude";
    String standard_name "longitude";
    String units "degrees_east";
  }
  latitude {
    String _CoordinateAxisType "Lat";
    Float32 actual_range 49.50789, 49.50789;
    String axis "Y";
    String bounds "bounds_nav_lat";
    String colorBarMaximum "52.0";
    String colorBarMinimum "46.0";
    String coverage_content_type "modelResult";
    String ioos_category "Location";
    String long_name "Latitude";
    String standard_name "latitude";
    String units "degrees_north";
  }
  ssh {
    Float32 _FillValue 1.0e+20;
    Float64 colorBarMaximum 4.0;
    Float64 colorBarMinimum -4.0;
    String coverage_content_type "modelResult";
    String ioos_category "sea_level";
    String long_name "Sea Surface Height";
    Float32 missing_value 1.0e+20;
    String standard_name "sea_surface_height_above_geoid";
    String units "m";
  }
  NC_GLOBAL {
    String acknowledgement "MEOPAR, Ocean Networks Canada (ONC), Digital Research Alliance of Canada";
    String cdm_data_type "Grid";
    String comment 
"If you use this dataset in your research,
please reference it with wording similar to the example below,
and include citations of the publications below.
Inclusion of the date(s) when you downloaded the dataset,
and the dataset id help to ensure reproducibility of your work.

Reference wording:

Forecasted sea surface height time series at Halfmoon Bay from the SalishSeaCast model
(Soontiens et al, 2016; Soontiens and Allen, 2017)
were downloaded from their ERDDAP server
(https://salishsea.eos.ubc.ca/erddap/)
on DATE from dataset ubcSSfHalfmoonBaySSH10m.

Citations:

Soontiens, N., Allen, S., Latornell, D., Le Souef, K., Machuca, I., Paquin, J.-P., Lu, Y., Thompson, K., Korabel, V., 2016.
Storm surges in the Strait of Georgia simulated with a regional model. Atmosphere-Ocean 54 1-21.
https://dx.doi.org/10.1080/07055900.2015.1108899

Soontiens, N. and Allen, S., 2017.
Modelling sensitivities to mixing and advection in a sill-basin estuarine system. Ocean Modelling, 112, 17-32.
https://dx.doi.org/10.1016/j.ocemod.2017.02.008";
    String Conventions "CF-1.6, COARDS, ACDD-1.3";
    String creator_email "sallen@eoas.ubc.ca";
    String creator_name "SalishSeaCast Project Contributors";
    String creator_url "https://salishsea-meopar-docs.readthedocs.io/";
    String description "10min interval SSH for tides";
    String drawLandMask "over";
    Float64 Easternmost_Easting -123.9098;
    Float64 geospatial_lat_max 49.50789;
    Float64 geospatial_lat_min 49.50789;
    String geospatial_lat_units "degrees_north";
    Float64 geospatial_lon_max -123.9098;
    Float64 geospatial_lon_min -123.9098;
    String geospatial_lon_units "degrees_east";
    String history 
"2024-12-03T17:36:16Z (local files)
2024-12-03T17:36:16Z https://salishsea.eos.ubc.ca/erddap/griddap/ubcSSfHalfmoonBaySSH10m.das";
    String infoUrl "https://salishsea.eos.ubc.ca/";
    String institution "UBC EOAS";
    String institution_fullname "Earth, Ocean & Atmospheric Sciences, University of British Columbia";
    String keywords "10min, earth, Earth Science > Oceans > Sea Surface Topography > Sea Surface Height, geodetics, geoid, ocean, oceans, sea, sea surface height above geoid, sea_surface_height_above_geoid, sossheig, ssh, surface, tides, time_counter, topography";
    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. https://www.apache.org/licenses/LICENSE-2.0";
    Float64 Northernmost_Northing 49.50789;
    String project "SalishSeaCast NEMO Model";
    String sourceUrl "(local files)";
    Float64 Southernmost_Northing 49.50789;
    String standard_name_vocabulary "CF Standard Name Table v29";
    String summary 
"Forecast, Halfmoon Bay, Sea Surface Height, 10min

Rolling daily forecast of sea surface height values averaged over 10 minute intervals from
SalishSeaCast NEMO model runs with physics and biology. The values are calculated at the model grid point
closest to the Halfmoon Bay tide gauge station on the Sunshine Coast side of the Strait of Georgia,
near Halfmoon Bay, British Columbia.
The time values are UTC.
They are the centres of the intervals over which the calculated model results are averaged;
e.g. the field average values for the 00:00 to 0:10 UTC 10 minute period on 2021-06-03 have a time value of 2021-06-03 00:05:00Z.
Geo-location and depth data for the SalishSeaCast NEMO model grid are available in the ubcSSnBathymetry2V17-02 dataset.

This dataset is updated daily to move it forward 1 day in time.
It starts at 00:05:00 UTC 5 days prior to the most recently completed forecast run,
and extends to 11:55:00 UTC on the 2nd day after the forecast run date.
So, for example, after completion of the 10-Nov-2017 forecast run,
this dataset included data from 2017-11-05 00:05:00 UTC to 2017-11-12 11:55:00 UTC.

v17-02: sea surface height variable;
        NEMO-3.6; ubcSSnBathymetry2V17-02 bathymetry; see infoUrl link for full details.
v18-06: NEMO-3.6 SalishSeaCast-201806 configuration; ubcSSnBathymetry2V17-02 bathymetry;
        see infoUrl link for full details.
v18-12: NEMO-3.6 SalishSeaCast-201812 configuration; ubcSSnBathymetryV17-02 bathymetry;
        see infoUrl link for full details.
v19-05: NEMO-3.6 SalishSeaCast-201905 configuration; ubcSSnBathymetryV17-02 bathymetry;
        see infoUrl link for full details.";
    String testOutOfDate "now+24hours";
    String time_coverage_end "2024-12-04T11:55:00Z";
    String time_coverage_start "2024-11-27T00:05:00Z";
    String timeStamp "2024-Dec-02 16:26:41 GMT";
    String title "Forecast, Halfmoon Bay, Sea Surface Height, 10min";
    String uuid "77e0958e-6b1a-4724-b1b2-b99f89c037f4";
    Float64 Westernmost_Easting -123.9098;
  }
}

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.