Salish Sea NEMO Model Grid, Geo-location and Bathymetry, v17-02

Salish Sea NEMO Model Grid, Geo-location and Bathymetry, v17-02

Longitude, latitude, and bathymetry of the Salish Sea NEMO model grid. The bathymetry values are those calculated by NEMO from the input bathymetry file. NEMO modifies the input bathymetry to remove isolated holes, and too-small partial steps; See the ubcSSn2DMeshMaskV17-02 dataset for the complete details of the calculation grid. 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, latitude and bathymetry variables

v16-07: same variables, bathymetry uniformly deepened by 1 grid level, smoothed at Juan de Fuca & Johnstone Strait open boundaries, Fraser River lengthened, bathymetry deepened near mouth of Fraser River

v17-02: same variables, Bathymetry composed from 3 datasets: USGS Digital elevation model (DEM) of Cascadia, latitude 39N-53N, longitude 116W-133W, Open-File Report 99-369,; NOAA British Columbia, 3 arc-second MSL DEM,; CHS Multibeam data and all point cloud data for the Salish Sea. Smoothed at Juan de Fuca & Johnstone Strait open boundaries. Proxy channel for Fraser River upstream of confluence with the Pitt River. Adjustments by Michael Dunphy to make increase resolution of Fraser River channels downstream of confluence with the Pitt River.

Access and Use

Licence: Creative Commons Attribution 4.0

Data and Resources



Dataset extent

Metadata Reference Date(s) March 29, 2021 (Revision)
March 30, 2021 (Publication)
Data Reference Date(s) September 30, 2017 (Publication)
Frequency of Update As Needed

Responsible Party 1
Susan Allen
  • Custodian
  • Distributor
  • Owner

Field Value
Ocean Variables Other
Scope Dataset
Status On Going
Maintenance Note Generated from
Spatial Extent [[[-125.4, 47.07], [-121.6, 47.07], [-121.6, 50.42], [-125.4, 50.42], [-125.4, 47.07]]]
North Bounding Latitude 50.42
South Bounding Latitude 47.07
East Bounding Longitude -121.6
West Bounding Longitude -125.4
Vertical Extent
Default Locale English
Citation identifier
Included in Data Catalogue
Included in Data Catalogue 1
CIOOS - Pacific Catalogue
Home of Canada's Pacific Ocean Data