整合NOAA-AVHRR影像與地理資訊系統監測森林火炎之研究

Study on Integrate NOAA-AVHRR Image and Geographic Information System to Monitor Forest Fire

鍾玉龍(Yuh-Lurng Chung) ； 陳正華(Cheng-Hua Chen)

《航測及遙測學刊》 7卷2期 (2002/06) Pp. 87-96

https://doi.org/10.6574/JPRS.2002.7(2).6

摘要

森林火災對自然生態環境以及人類的生命財產安全均造成嚴重的影響，一旦林火延燒未能即時撲滅，非但林木遭受焚毀，且林地頓失覆蓋，喪失了水土保持功能，進而影響國土保安，顯見森林火災之影響極為深遠。為了能更有效率及確實掌握森林火災的資訊，本研究以NOAA-AVHRR影像，計算NDVI（Normalized Difference Vegetation Index）以比對森林火災對植生之影響，並以熱紅外光波段評估森林火災範圍，其結果有助於經營管理單位獲得即時林火資訊，俾能迅速撲滅林火。

關鍵字

NOAA-AVHRR影像 ； 地理資訊系統 ； 植生指標 ； 森林火災

並列摘要

Forest fire can cause serious damage to the ecological environment and human lives and property. Once the fire does not be put off in time, the trees are destroyed and the land loses its cover, this affects soil & water conservation. In order to obtain the information about forest fire more efficiently and correctly, this research is based on NOAA-AVHRR to derivative the NDVI (Normalized Difference Vegetation Index), and from the variation of NDVI reveals the impact of forest fire on vegetation. Auxiliary the digital number on thermal-IR band, the high probability location of forest fire can be delimited. The result can help the manager in obtaining forest fire information and thus hopefully forest fire can be put off as soon as possible.

並列關鍵字

NOAA-AVHRR image ； Geographic information system ； Vegetation ； index ； Forest fire