Mobile radar provides insights into hydrologic responses in burn areas

International Journal of Wildland Fire
By: , and 

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Abstract

Background

Wildfires often occur in mountainous terrain, regions that pose substantial challenges to operational meteorological and hydrologic observing networks.

Aims

A mobile, post-fire hydrometeorological observatory comprising remote-sensing and in situ instrumentation was developed and deployed in a burnt area to provide unique insights into rainfall-induced post-fire hazards.

Methods

Mobile radar-based rainfall estimates were produced throughout the burn area at 75-m resolution and compared with rain gauge accumulations and basin response variables.

Key results

The mobile radar was capable of resolving details in intra-basin rain fields as well as detecting storms approaching the burn area with accuracy equivalent to rain gauges. Runoff responses were complex and dependent on spatiotemporal patterns and magnitude of rainfall intensity over the burn area.

Conclusions

The complement of the mobile radar with the near-field, non-contact instruments measuring the hydrologic response provided valuable information in regions that are difficult to access and are not routinely monitored by conventional observing networks.

Implications

Post-fire observatories equipped with mobile radars deployed on burn areas provide real-time data, early alerting capabilities and visualizations to potentially guide impact-based decision support for local authorities.

Study Area

Publication type Article
Publication Subtype Journal Article
Title Mobile radar provides insights into hydrologic responses in burn areas
Series title International Journal of Wildland Fire
DOI 10.1071/WF24163
Volume 34
Issue 6
Publication Date May 26, 2025
Year Published 2025
Language English
Publisher CSIRO Publishing
Contributing office(s) Colorado Water Science Center
Description WF24163, 19 p.
Country United States
State Colorado
Additional publication details