Current Year River Ice Roughness Maps for Canadian Flood Monitoring

Satellite-derived river ice roughness maps for selected Canadian regions in the current calendar year, produced by Natural Resources Canada. The dataset is updated in near real-time, typically within 4 hours of new satellite imagery acquisition, to support emergency response. Coverage is not comprehensive nationwide.

Use Cases

• Monitor ice jam flood risks by analyzing river ice roughness maps for specific Areas of Interest (AOI) and dates.
• Assess seasonal ice dynamics by comparing roughness products across the UTC Date field within the current year.
• Support near real-time emergency decision-making by integrating the latest validated ice roughness maps into response systems.
• Study the correlation between environmental conditions and ice surface roughness as captured in the satellite-derived products.

Strengths

• Near real-time updates within 4 hours of satellite image acquisition.
• Products are generated and validated by a national government agency, Natural Resources Canada.
• Data is part of a dedicated emergency geomatics service (EGS) for operational use.

Limitations

• Coverage is limited to selected Canadian regions and is not nationwide.
• Products are generated on a best-effort basis and may contain errors due to limited validation time and ground truth data.
• Quality can be affected by environmental conditions, image resolution, and methodological limitations at acquisition time.

Provenance

Source

Natural Resources Canada (NRCan) Emergency Geomatics Service (EGS).

Collection Method

Generated from satellite imagery and validated on a best-effort basis.

Time Range

Current calendar year.

Freshness

Updated in near real-time (4-hour latency). Last metadata update was 2026-04-08.

Geography

Selected river regions in Canada.