• 제목/요약/키워드: limage Differencing

검색결과 1건 처리시간 0.018초

Monitoring of Forest Burnt Area using Multi-temporal Landsat TM and ETM+ Data

  • Lee, Seung-Ho;Kim, Cheol-Min;Cho, Hyun-Kook
    • 대한원격탐사학회지
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    • 제20권1호
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    • pp.13-21
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    • 2004
  • The usefulness of the multi-temporal satellite image to monitoring the vegetation recovery process after forest fire was tested. Using multi-temporal Landsat TM and ETM+data, NDVI and NBR changes over times were analyzed. Both NDVI and NBR values were rapidly decreased after the fire and gradually increased for all forest type and damage class. However, NBR curve showed much clearer tendency of vegetation recovery than NDVI. Both indices yielded the lowest values in severely damaged red pine forest. The results show the vegetation recovery process after forest fire can detect and monitor using multi-temporal Landsat image. NBR was proved to be useful to examine the recovering and development process of the vegetation after fire. In the not damaged forest, however the NDVI shows more potential capability to discriminate the forest types than NBR..