To evaluate exit routes for Californians living in areas at risk of a fire-related evacuation, we combined and analyzed data from the U.S. Census Bureau, Cal Fire and OpenStreetMap. We took 2010 census block-level populations, combined with Cal Fire’s “Fire Hazard Severity Zone” maps, ...
“Fire was in the mountains — there was no consideration that fire would cross (Highway) 101.” Cal Fire is making new fire hazard maps — ready in a year or so — that will incorporate regional wind patterns and other climate factors. In the meantime, experts say the current maps, ...
Program Description Maps recommended by the state government that identify the highest level of fire hazard severity (very high) in cities Maps mandated by the state government that identify levels of fire hazard severity (moderate, high, and very high) in unincorporated areas Number or Size in ...
you have more of the landscape that can produce these post-fire debris flows,” says Youberg. Geologists can’t do much while the fires are still active, but researchers in the U.S. Geological Survey will be able to assess burned areas and create hazard maps, enabling USGS to issue warni...
To make the analyses and conclusions more practical, wildfires were analyzed mainly by the California Department of Forestry and Fire Protection (CAL FIRE) Administrative Units. The climate divisions were also added to summarize the wildfire spatial distribution characteristics. The maps of these two ...
USGS Preliminary Assessments of Post-Fire Debris Flow Hazards California Geological Survey Landslide Hazard Assessments Story Maps on recent post-fire debris flows from the USGS Landslide Hazards Program NWS Los Angeles Story Maps, including Montecito debris flow event: ...
We used (i) the occurrence of strong SAWs and the presence of fire upwind and (ii) smoke plume datasets (NOAA Hazard Mapping System (HMS)) within a 160 km buffer from a wildfire perimeter to identify zip code days exposed to smoke. In addition to isolating the effect of wildfire-...
A subsequent field survey verified the accuracy of these maps, though the failure to obtain stereoscopic coverage of the study area resulted in a general underestimation of slope as a factor in fire hazard analysis. Remote sensing techniques, especially the use of color infrared aerial photography,...
Recent increases in the frequency and scale of wildfires worldwide have raised concerns about the influence of climate change and associated socioeconomic costs. In the western United States, the hazard of wildfire has been increasing for decades. Here,
In these maps, red represents human-started fires after 2000. Blue represents fires of unknown cause. Green represents fires due to natural (i.e. lightning) causes: Some conclusions from this: There is a trend towards more area burned and more fires as well as towards an increase in the ...