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使用遥感技术来评估哈维泽湿地水库变化和洪水相关的流入
Wisam A Alawadi1, Zahraa A Hussain A Raheem2, Dina A Yaseen3
1College of Engineering, Department of Civil Engineering, University of Basrah, Basrah, Iraq. wisam.abd-ali@uobasrah.edu.iq.
Environmental monitoring and assessment
|September 24, 2023
概括
遥感有效监测了2019年伊拉克的洪水.
科学领域:
- 水文和远程传感技术
- 环境监测 环境监测
背景情况:
- 遥感数据提供高空间和时间分辨率,用于监测地表水变化.
- 像哈维兹沼泽这样的湿地需要有效的监测方法,特别是跨境水资源.
研究的目的:
- 为了评估2019年洪水期间哈维泽沼泽的淹水区域和水储量的时空变化.
- 通过遥感和水平衡,估计与洪水相关的水流,特别是来自伊朗的水流.
- 为了证明遥感在数据稀缺的湿地进行水文监测的可行性.
主要方法:
- 利用光谱指数,特别是规范差异水指数 (NDWI) 和规范差异湿度指数 (NDMI),来检测水体.
- 应用水平衡方法来估计未测量的洪水相关流量.
- 进行了远程传感衍生水域提取的准确性评估.
主要成果:
- 遥感技术准确地划定了水域,支持可靠的流入计算.
- 来自伊朗的流入量约占5个月内进入哈维泽沼泽的总水量的41.2%.
- 该研究验证了无复杂的遥感方法在湿地水文评估中的有效性.
结论:
- 遥感提供了一种可行且高效的方法来监测像哈维泽沼泽这样的湿地中的水文变化.
- 这种方法对于在数据有限的地区估计跨境水流入特别有价值.
- 这项研究强调了光谱指数和水平衡对于理解洪水事件期间湿地动态的有用性.
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