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首页> 外文会议>International Symposium on LAPAN-IPB Satellite for Food Security and Environmental Monitoring >Monitoring 2015 drought in West Java using Normalized Difference Water Index (NDWI)
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Monitoring 2015 drought in West Java using Normalized Difference Water Index (NDWI)

机译：使用归一化差异水指数（NDWI）监测2015年西爪哇省的干旱

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摘要

Drought is a slow developing phenomenon that accumulates over period and affecting various sectors. It is one of natural hazards that occurs each year, particularly in Indonesia over Australian Monsoon period. During drought event, vegetation's cover can be affected by water stress. Normalized Difference Water Index (NDWI) is a method for water resource assessment and known to be strongly related to the plant water content. NDWI is produced from MODIS bands Near-infrared (NIR) and Short Wave Infrared (SWIR). This research aims to monitor drought using NDWI in West Java during El Nino 2015 and its impact on rainfall variability. The result showed rainfall was decreased significantly starting from May-June, then increased in November. According to NDWI, it also showed that mostly West Java Region affected by drought during May-November. Very strong drought occurred on September-November. On December, areal extent of drought was decreasing significantly because rainfall had increased during November. Generally, areal extent of drought in West Java was dominated by strong and moderate drought. It implied that El Nino 2015, give great impact on increasing drought and decreasing rainfall in West Java. NDWI can be detected drought occurrence as it have good correlation with rainfall spatially.
机译：干旱是一种缓慢的发展现象，积累了周期并影响各个部门。它是每年发生的自然灾害之一，特别是在印度尼西亚超过澳大利亚季风期。在干旱活动期间，植被的封面可能受水胁迫的影响。归一化差异水指数（NDWI）是一种用于水资源评估的方法，并已知与植物水含量密切相关。 NDWI是由Modis带近红外线（NIR）和短波红外（SWIR）产生的。本研究旨在在El Nino 2015期间在西爪哇省使用NDWI监测干旱及其对降雨变异性的影响。结果表明，从5月至6月开始降雨量显着下降，11月份增加。据Ndwi称，它还表明，在11月至11月期间受干旱影响的西爪哇地区。十一月至11月发生了很强的干旱。 12月，由于降雨在11月份的降雨增加，干旱的面积幅度显着下降。一般来说，西爪哇省干旱的面积范围都是强烈和中度干旱的主导。它暗示El Nino 2015，对West Java的日益降雨量增加，产生了很大的影响。可以检测到干旱发生的威胁，因为它在空间上与降雨有良好的相关性。

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