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首页> 外文期刊>International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences >FLOODED AREA EXTRACTION OF RICE PADDY FIELD IN INDONESIA USING SENTINEL-1 SAR DATA
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FLOODED AREA EXTRACTION OF RICE PADDY FIELD IN INDONESIA USING SENTINEL-1 SAR DATA

机译:利用SENTINEL-1 SAR数据提取印度尼西亚稻田的洪水区。

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The objective of this study is to detect flooded area in rice paddy fields in Indonesia by using remotely sensed data. We used synthetic aperture radar (SAR) data for this purpose, because it is capable of getting high-resolution data in almost all-weather conditions. The paper gives a result of detecting flooded area occurred in our research sites located close to Bandung area, Tegalluar in Bojongsoang district, from the end of February to the beginning of March in 2018. The C-band SAR data acquired by Sentinel-1 were used for this analysis. We derived the gamma-naught threshold for dividing flood and non-flood areas by using a linear discriminant analysis. Discriminant accuracy reached 98% using VV polarization. By using the gamma-naught threshold and rice paddy field mask (GIS data), the rice paddy flooded area could be extracted with good accuracy.
机译:这项研究的目的是利用遥感数据检测印度尼西亚稻田中的水灾地区。为此,我们使用合成孔径雷达(SAR)数据,因为它能够在几乎全天候的情况下获取高分辨率数据。本文给出了从2018年2月底到2018年3月初检测到我们位于Bojongsoang地区Tegalluar靠近万隆地区的研究地点发生的洪水区的结果。Sentinel-1采集的C波段SAR数据为用于此分析。通过使用线性判别分析,我们得出了将洪水区和非洪水区分开的伽马零阈值。使用VV极化,判别精度达到98%。通过使用伽马值阈值和稻田遮罩(GIS数据),可以很好地提取稻田淹水区。

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