Shallow substrate model (20m) of the Pacific Canadian coast

The shallow substrate bottom type model was created to support near shore habitat modelling. Data sources include both available observations of bottom type and environmental predictor layers including oceanographic layers, fetch, and bathymetry and its derivatives. Using weighted random forest classification from the ranger R package, the relationship between observed bottom type and predictor layers can be determined, allowing bottom type to be classified across the study areas. The predicted raster files are classified as follows: 1) Rock, 2) Mixed, 3) Sand, 4) Mud

The categorical substrate model domains are restricted to the extent of the input bathymetry layers (see data sources) which is 5 km from the 50 m depth contour.

Data and Resources

Additional Info

Field	Value
Last Updated	April 17, 2026, 20:35 (UTC)
Created	April 17, 2026, 20:35 (UTC)
contact_email	DFO.PACScienceMSEAData-DonneesEASMSciencePAC.MPO@dfo-mpo.gc.ca
contact_person	{"en": "Government of Canada; Fisheries and Oceans Canada; Pacific Science/Ecosystem Science Division/Marine Spatial Ecology and Analysis Section", "fr": "Government of Canada; Fisheries and Oceans Canada; Science Pacificque/Division des sciences des écosystèmes/Section d’écologie et d’analyse spatiale marine"}
criticality_level	[]
data_dictionary	EPSG:3005,http://www.epsg-registry.org,
geographic_scope	[]
open_canada_collection	fgp
open_canada_date_modified	2025-06-23 00:00:00
open_canada_date_published	2020-01-31 00:00:00
open_canada_keywords	{"en": ["Ocean bottom", "Sea bed", "Seabed", "Rugosity", "Sediments", "Ocean floor"], "fr": ["Fond de l’océan", "Fond marin", "Fond marin", "Rugosité", "Sédiment", "Fond marin"]}
open_canada_subject	["nature_and_environment"]
sensitivity_level	unrestricted
title_fr	Modèle de substrat peu profond (20m) de la côte canadienne du Pacifique
update_frequency	irregular