Canadian Extreme Water Level Adaptation Tool (CAN-EWLAT)

Canadian Extreme Water Level Adaptation Tool (CAN-EWLAT) is an open dataset from Fisheries and Oceans Canada with 8 files (CSV, ESRI REST, HTML, FGDB/GDB, PDF); catalogue record updated 2026-03-24. On CanQuery you can open its CSV or Excel file as a table, filter, chart and export up to 10,000 rows as CSV and follow the original downloads. Files are available in English and French.

Extreme water level along the marine coastline is a result of a combination of storm surge, tides, and ocean waves. Future projections of climate change in the marine environment indicate that rising sea level and declining sea ice will cause changes in extreme water levels, which will impact Canada's coastlines and the infrastructure in these areas. Understanding these changes is essential for developing adaptation strategies that can minimize the harmful effects that may result. CAN-EWLAT is a science-based planning tool for climate change adaptation of coastal infrastructure related to future water-level extremes and changes in wave climate. The tool includes two main components: 1) vertical allowance and 2) wave climate. CAN-EWLAT was developed primarily for DFO Small Craft Harbours (SCH) locations, but it should prove useful for coastal planners dealing with infrastructure along Canada’s ocean coastlines. Cite this data as: Greenan B. Canadian Extreme Water Level Adaptation Tool (CAN-EWLAT) Published June 2022. Oceans Ecosystems Science Division, Fisheries and Oceans Canada, Dartmouth, N.S.

Publisher

Fisheries and Oceans Canada

Resources

8

Catalogue metadata updated

2026-03-24