{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,12,23]],"date-time":"2025-12-23T10:35:07Z","timestamp":1766486107777,"version":"build-2065373602"},"reference-count":77,"publisher":"MDPI AG","issue":"11","license":[{"start":{"date-parts":[[2011,11,11]],"date-time":"2011-11-11T00:00:00Z","timestamp":1320969600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/3.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Remote Sensing"],"abstract":"<jats:p>Wildland fires are a yearly recurring phenomenon in many terrestrial ecosystems. Accurate fire severity estimates are of paramount importance for modeling fire-induced trace gas emissions and rehabilitating post-fire landscapes. We used high spatial and high spectral resolution MODIS\/ASTER (MASTER) airborne simulator data acquired over four 2007 southern California burns to evaluate the effectiveness of 19 different spectral indices, including the widely used Normalized Burn Ratio (NBR), for assessing fire severity in southern California chaparral. Ordinal logistic regression was used to assess the goodness-of-fit between the spectral index values and ordinal field data of severity. The NBR and three indices in which the NBR is enhanced with surface temperature or emissivity data revealed the best performance. Our findings support the operational use of the NBR in chaparral ecosystems by Burned Area Emergency Rehabilitation (BAER) projects, and demonstrate the potential of combining optical and thermal data for assessing fire severity. Additional testing in more burns, other ecoregions and different vegetation types is required to fully understand how (thermally enhanced) spectral indices relate to fire severity.<\/jats:p>","DOI":"10.3390\/rs3112403","type":"journal-article","created":{"date-parts":[[2011,11,11]],"date-time":"2011-11-11T10:36:00Z","timestamp":1321007760000},"page":"2403-2419","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":77,"title":["Evaluating Spectral Indices for Assessing Fire Severity in Chaparral Ecosystems (Southern California) Using MODIS\/ASTER (MASTER) Airborne Simulator Data"],"prefix":"10.3390","volume":"3","author":[{"given":"Sarah","family":"Harris","sequence":"first","affiliation":[{"name":"School of Geography and Environmental Science, Monash University, Melbourne, VIC 3800, Australia"},{"name":"Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, CA 91109, USA"}]},{"given":"Sander","family":"Veraverbeke","sequence":"additional","affiliation":[{"name":"Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, CA 91109, USA"}]},{"given":"Simon","family":"Hook","sequence":"additional","affiliation":[{"name":"Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, CA 91109, USA"}]}],"member":"1968","published-online":{"date-parts":[[2011,11,11]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"329","DOI":"10.1071\/WF01032","article-title":"Mapping fire regimes across time and space: understanding coarse and fine scale fire patterns","volume":"10","author":"Morgan","year":"2001","journal-title":"Int. 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