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首页> 外文会议>Asian conference on remote sensingACRS >ASSESSING TROPICAL CYCLONE DAMAGE USING MODERATE SPATIAL RESOLUTION SATELLITE IMAGERY: CYCLONE SIDR, BANGLADESH 2007
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ASSESSING TROPICAL CYCLONE DAMAGE USING MODERATE SPATIAL RESOLUTION SATELLITE IMAGERY: CYCLONE SIDR, BANGLADESH 2007

机译：使用中等空间分辨率卫星图像评估热带气旋损伤：Cyclone Sidr，孟加拉国2007

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Tropical cyclones are a common natural disaster, and are predicted to increase in intensity and frequency under future climate change scenarios in many coastal areas across the world. Satellite remote sensing can provide a capability for large area (10,000's km~2) coverage and derivation of essential map products at high to moderate spatial resolution (5 - 30 m pixels) on a regular basis weekly to monthly. These data are ideal for assessing damage produced by the cyclone and can be used to derive appropriate information for planning and directing relief efforts in a short time frames. This study developed and tested approaches for assessing multiple damages caused in 2007 by tropical Cyclone Sidr in Sarankhola upazila (151.24 km~2) in Bangladesh from moderate spatial resolution satellite imagery. Object based image classification techniques were applied to map cover types in pre-and post-cyclone SPOT 5 satellite imagery. Post classification change detection techniques identified types of land cover changes. Our results indicate that around 60% of the study area was significantly damaged by Sidr. About 31% of croplands were flooded by storm surges and with vegetation, settlements and infrastructure of the area all being fully or partially damaged. The methods developed may be used in future to assess the damages caused by tropical cyclones in Bangladesh and other countries.
机译：热带旋风是一种常见的自然灾害，预计将在世界各地的许多沿海地区的未来气候变化场景下增加强度和频率。卫星遥感可以为大面积（10,000 km〜2）提供高度空间分辨率（5 - 30米像素）的大面积（10,000 km〜2）覆盖率和推导的能力，以定期每周一次到每月一次。这些数据非常适合评估旋风器产生的损坏，并且可用于导出规划和指导在短时间内的救济工作的适当信息。本研究开发和测试了评估2007年在孟加拉国的孟加拉国的热带气旋SIDR在2007年造成的多种损害的方法，从中等空间分辨率卫星图像。基于对象的图像分类技术应用于预先和后旋转后的卫星点卫星图像中的映射覆盖类型。后分类变更检测技术确定了土地覆盖类型的变化。我们的结果表明，约有60％的研究区域受到SIDR的显着损害。大约31％的农田被风暴浪涌淹没，植被，定居点和面积的基础设施都完全或部分受损。未来可能使用的方法来评估孟加拉国和其他国家的热带气旋造成的损害。

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