Relative humidity (RH) and temperature play a large role in the moisture content of available fuels, affecting the fire weather indices that indicate intensity, ignition, and spread potential of wildfires. However, the magnitude of increase in RH and decrease in temperature necessary to impact intensity and ignition potential is dependent on many additional factors including aspect, altitude, wind speed, atmospheric stability, fuel loading, fuel structure, and moisture content of the fuels.
The Trident mobile high-volume water delivery system is self-contained. The main components of the system are two UTVs, a 200 hp high-volume pump, and 7000 feet (2134 m) of 4-inch hose. It can deliver 500 gpm of water at 190 psi in a wildfire operational situation. Alberta Wildfire asked FPInnovations to document three deployments in 2021 to identify opportunities for using the system and to reduce the knowledge gaps around best practices for deployment.