Mapping spatial and temporal patterns of Mediterranean wildfires from MODIS
作者： Noam Levin , Aliza Heimowitz
DOI: 10.1016/J.RSE.2012.08.003
关键词:
摘要: Abstract Wildfires are part of the Mediterranean ecosystem, however, in Israel all wildfires human caused, either intentionally or un-intentionally. In this study we aimed to develop and test a new method for mapping fire scars from MODIS imagery, examine temporal spatial patterns 2000s factors controlling Israel's wildfire regime. To map fires used two ‘off-the-shelf’ products as our basis—the 1 km Collection 5 hotspots, 500 m MCD45A1 burnt areas—and created set scar maps 250 m MOD13Q1 product. We carried out cross comparison three based evaluated them independently against wild mapped 30 m Landsat TM imagery. GIS layers rainfall, land use, Landsat-based national vegetation map. occurred areas where annual rainfall was above 250 mm, mostly with herbaceous vegetation. Wildfire frequency especially high Golan Heights foothills Judean mountains, correspondence found between military training zones distribution scars. The use satellite images enabled us at scale due resolution sensor. Our adequately large (> 1 km2) accuracies 80%. Such account proportion fires, pose greatest threats. This database can aid managers determining risks space time.
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