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Filters: partyWithName: Andrea M Ku (X) > partyWithName: U.S. Geological Survey (X) > partyWithName: Todd J Hawbaker (X)

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Post-fire shifts in vegetation composition will have broad ecological impacts. However, information characterizing post-fire recovery patterns and their drivers are lacking over large spatial extents. In this analysis we used Landsat imagery collected when snow cover (SCS) was present, in combination with growing season (GS) imagery, to distinguish evergreen vegetation from deciduous vegetation. We sought to (1) characterize patterns in the rate of post-fire, dual season Normalized Difference Vegetation Index (NDVI) across the region, (2) relate remotely sensed patterns to field-measured patterns of re-vegetation, and (3) identify seasonally-specific drivers of post-fire rates of NDVI recovery. Rates of post-fire...
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Wildfires and prescribed fires are frequent but under-mapped across wetlands of the southeastern United States . High annual precipitation supports rapid post-fire recovery of wetland vegetation, while associated cloud cover limits clear-sky observations. In addition, the low burn severity of prescribed fires and spectral confusion between fluctuating water levels and burned areas have resulted in wetland burned area being chronically under-estimated across the region. In this analysis, we first quantify the increase in clear-sky observations by using Sentinel-2 in addition to Landsat 8. We then present an approach using the Sentinel-2 archive (2016-2019) to train a wetland burned area algorithm at 20 m resolution....
    map background search result map search result map Data release for tracking rates of post-fire conifer regeneration distinct from deciduous vegetation recovery across the western U.S. Wetland burned area extent derived from Sentinel-2 across the southeastern U.S. (2016-2019) Wetland burned area extent derived from Sentinel-2 across the southeastern U.S. (2016-2019) Data release for tracking rates of post-fire conifer regeneration distinct from deciduous vegetation recovery across the western U.S.