使用 SCS-CN 方法评估洪水灾害：伊拉克东北部哈拉布贾地区案例研究

Q3 Earth and Planetary Sciences

Iraqi Geological Journal Pub Date : 2023-12-31 DOI:10.46717/igj.56.2f.22ms-2023-12-28

Ghadeer Al-Kasoob, Isaac Alakaam

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引用次数: 0

摘要

研究区域（苏莱曼尼亚省哈拉布贾区）位于伊拉克东北部，面积为 788.06 平方公里。所研究的流域共有 30 个。它们流向不同，流域面积为 696.12 平方公里。研究旨在利用 SCS-CN 方法研究流域的水文特征，并指出研究区域的洪水危害程度。水文模型由 WMS 11.1 软件中的 HEC-1 模型实现。模型采用了不同的降雨量（10-500 毫米）情景，以确定危险地表径流的临界值。这种变化会对各种人类活动造成危害。当降雨量为 10 毫米时，不会产生地表径流。结果表明，流域（7B、20B 和 11B）因其面积而具有较高的洪水风险。我们采用线性回归法对所有可疑流域进行了洪水风险检测。

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Assessment of Flood Hazards Using SCS-CN Method: A Case Study of Halabjah Area in Northeastern Iraq

The study area (Halabjah District) of the Sulaymaniyah Governorate is located in northeastern Iraq, with an area of 788.06 km2. The total studied watersheds are 30 watersheds. They flow in different directions, and the area of these watersheds is 696.12 km2. The research aims to study the watersheds' hydrological characteristics and indicate the extent of their flood hazards in the study area using SCS-CN methods. The HEC-1 model in WMS 11.1 software implemented the hydrological models. Different rainfall amounts (10-500 mm) scenarios have been implemented to specify the threshold of hazardous surface runoff. This variation is a danger to various human activities. No surface runoff has developed at the rainfall of 10 mm. The result shows that watersheds (7B, 20B, and 11B) have high flood risk because of their area. Linear regression has been used to examine all suspected watersheds for flood risk.

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