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Motivation. Understanding the multiple weather and climatic factors that cause wildfires is critical to short and long-period forecasting and planning. To support investigations to further such research and applications, a fine spatial scale 2km horizontal atmospheric model-founded rendition of observed wind and humidity data was generated for the period from 1980 through 2018. Focusing on California’s South Coast region, Santa Ana winds (SAWs) each occur with increasing frequency from autumn to winter and may affect fire outcomes. Aims. We investigate historical records to understand how these counteracting influences have affected fires. Methods. We defined autumn precipitation onset as the first 3 days when...
Categories: Publication;
Types: Citation
As a consequence of both warming temperatures and over a century of fire suppression, wildfires in the his torically frequent-fire forests of the western US have increased both in size and intensity, resulting in large patches of high severity fire that are well outside the historic range of variation. Postfire fuels research has often focused on such high severity patches because of the risk of both type conversion and repeated high severity fire. Yet a substantial portion of any given wildfire will likely still have burned at low to moderate severity. These areas generally retain live mature trees and surface fuels, suggesting that wildfire effects may be in keeping with some forest restoration goals. To better...
Categories: Publication;
Types: Citation;
Tags: Conifer forest,
Forest management,
Fuels,
Giant sequoia,
Wildfire
The coastal wetlands on the island of Molokaʻi are highly degraded due to land use change, sedimentation from uplands, and invasive species. However, because much of the coastal areas along the south shore are not developed, there are many opportunities for wetland restoration. In this project, we identified 12 potential sites for coastal wetland restoration on Molokaʻi. To rank the sites for their potential to be fully functional coastal wetlands, we conducted a rapid assessment of soils, hydrology, native vegetation, and habitat quality for endangered birds. We used the rapid assessment information together with spatial data available on the soils, vegetation, and hydrology of coastal areas of Molokaʻi, sea-level...
Categories: Publication;
Types: Citation
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