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GENERATING MULTI-TEMPORAL LANDSLIDE INVENTORY USING THE NDVI TEMPORAL TRAJECTORY IN NANTOU COUNTY, TAIWAN

机译:利用台湾南投县的NDVI时间轨迹生成多时间山体滑坡清单

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In Taiwan, landslide usually appears in orogenic mountain belts after earthquake and typhoon events. In this paper, we aim to assess the temporal trajectory of Normalized Difference Vegetation Index (NDVI) time series by using SPOT images to carry out the landslide mapping from 1999 to 2009 in Nantou County, Central Taiwan. By quantifying the temporal change of NDVI index, we can identify the extent, location, and timing of the landslide. Preliminary results reveal different temporal patterns of landslide activities through potential disturbances of vegetation recovery index refer to earthquakes with magnitude Mw over 6 and typhoons with precipitation higher than 200mm/day. We expect that our proposed method can contribute to the generation of multitemporal landslide inventory more efficiently.
机译:在台湾,地震和台风活动后,山体滑坡通常出现在organic山羊中。 在本文中,我们的目标是通过使用现货图像来评估归一化差异植被指数(NDVI)时间序列的时间轨迹,从台湾南投县开展1999年至2009年的滑坡映射。 通过量化NDVI指数的时间变化,我们可以识别滑坡的范围,位置和时序。 初步结果显示通过植被恢复指数的潜在干扰来提出不同的障碍物的山体滑坡活动,这是指超过6幅的幅度MW和沉淀,高于200mm /天。 我们预计我们的提出方法可以更有效地促进多立体山体滑坡库存。

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