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通过每两个月一次的最大水深地图,对穆雷-达林盆地的洪平原洪水历史进行绘制
David J Penton1, Jin Teng2, Catherine Ticehurst2
1Commonwealth Scientific and Industrial Research Organisation, Adelaide, Australia. dave.penton@csiro.au.
Scientific data
|September 23, 2023
概括
一个新的数据集为澳大利亚的穆雷·达林盆地 (MDB) 从1988-2022提供了一致的水深地图. 这个工具有助于理解整个盆地的不断变化的洪水模式.
科学领域:
- 水文学的水文学
- 遥感 遥感 遥感 遥感
- 环境科学 环境科学
背景情况:
- 全球水资源管理面临着河流洪水模式变化的挑战.
- 精确监测洪水动态对于有效的水资源管理至关重要.
- 穆雷·达林流域 (MDB) 是一个重要的河流系统,需要详细的洪水评估.
研究的目的:
- 为整个穆雷·达林盆地开发和提供全面,一致的水深地图时间系列.
- 支持利益相关者理解和分析历史和当前的洪水模式.
- 为了促进整个系统的洪水动态分析.
主要方法:
- 利用远程传感图像和洪水深度估计模型.
- 从1988年到2022年,每两个月生成一次水深地图的时间系列.
- 对于整个100万平方公里的盆地,实现了大约30米的空间分辨率.
主要成果:
- 创建了一个一致的数据集,在MDB中观察到的最大洪水深度.
- 对13种水力动力学模型的验证显示,平均绝对误差为0.49m.
- 该数据集提供了34年来洪水范围和深度的可靠和准确图像.
结论:
- 开发的数据集是MDB全系统洪水分析的宝贵资源.
- 它提供了关于盆地内特定地点洪水的历史的见解.
- 提供数据集,工具和示例鼓励进一步研究洪水动态.
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