Helping smokejumpers to predict wind turbulence

By David Bruce
Wildfire Today
December 13, 2024
Category: Forestry
Region: United States, US West

Wind turbulence is a well-known factor in the complex wildland fire environment. Sometimes it is the wind shear over vegetation, buildings, or terrain, and other times it’s the buoyant forces from solar surface heating or thermal plume injections from the fire itself. For a smokejumper, parachuting from a low-flying aircraft in a remote and rugged landscape, turbulence near the ground at the atmospheric boundary layer (ABL) is of particular concern. Scientists at the Rocky Mountain Research Station have published a study on how to better predict terrain-induced turbulence to assist smokejumper operations. …This study concluded that WindNinja’s lesser-known ability to simulate wind turbulence could be of use for assessing smokejumper operations under moderate to high wind conditions. They also suggest that although this work focused on smoke jumping, real-time turbulence predictions from WindNinja could be useful for other near-surface firefighting aerial operations.

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