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A rule-based semi-automatic method to map burned areas in Mediterranean using landsat images–revisited and improved

International Journal of Digital Earth 2021年第11期14卷 1602-1623页

作者： Nikos Koutsias Magdalini Plenioua Department of Environmental Engineering University of PatrasG.Seferi 2GR-30100 AgrinioGreece Forest Research Institute Hellenic Agricultural Organization DemeterGR-57006 VassilikaThessalonikiGreece

At local or regional scales,where landsat has been extensively applied to monitor burned areas,semi-or fully automated methods are not very common.Koutsias et al.([2013].“A Rule-Based Semi-Automatic Method to map burned Areas:Exploring the USGS Historical landsat Archives to Reconstruct Recent Fire History.”International Journal of Remote Sensing 34(20):7049–7068)developed a semi-automatic method to map burned areas consisted of a set of rules that are valid especially when the post-fire image has been captured shortly after the fire.However,the rule-based approach is not free of errors that eventually create limitations to adopt this method for reconstructing the fire history in a fully automated mode.In this work,we improved the method by revisited and improving the rules that have been developed in the first paper,especially for reducing the omission errors.Minor changes have been made to almost all rules;however,one of the rules has been revised and changed the most as compared to the others by also considering the short-wave infrared channel TM5(in landsat-5 or landsat-7).In this case,the algorithm could successfully capture the fire scar in dry vegetated areas as well.Due to the lack of reference data collected in the field,we used reference data collected by photo interpretation,and the accuracy assessment showed that these had a high agreement with the burned land mapping results.

关键词： Fire scar mapping burned land mapping automatic landsat rule-based approach Mediterranean

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