Hydrological Modelling in Arid and Semi-Arid Areas: Modelling semi-arid and arid hydrology and water resources: The southern Africa experience
Hydrological Modelling in Arid and Semi-Arid Areas: Modelling semi-arid and arid hydrology and water resources: The southern Africa experience
复制标题
干旱和半干旱地区的水文模拟：半干旱和干旱水文和水资源模拟：南部非洲的经验
DOI：
10.1017/cbo9780511535734.004
复制
发表时间：
2007
影响因子：
5.2
通讯作者：
D. Hughes
中科院分区：
文献类型：
--
作者：
D. Hughes
本文件审查了南部非洲区域内半干旱和干旱流域水文模型的现状。该区域的水文建模是在水文气象过程的空间和时间变化程度很高、普遍缺乏可用数据以及财政和人力资源有限的背景下发展起来的。尽管存在这些限制，但还是开发了一些模式，这些模式在评估该区域的水资源方面证明是非常宝贵的，并成功地用于水资源开发计划的设计和管理。主要的局限性是缺乏对信道传输损失的充分定量了解，以及现有降雨量数据缺乏空间和时间细节。虽然有通过使用遥感改善降雨量输入模型的前景，在传输损失过程的定量理解的改善似乎不太可能。
The paper reviews the current situation with respect to the status of hydrological modelling of the semi-arid and arid basins within the southern African region. Hydrological modelling in the region has developed against a background of a high degree of spatial and temporal variability in hydrometeorological processes, a general lack of available data and limited financial and personnel resources. Despite these limitations there have been models developed that have proved to be invaluable in assessments of the region’s water resources and that have been used successfully in the design and management of water resource development schemes. The main limitations are related to the lack of an adequate quantitative understanding of channel transmission losses and a lack of spatial and temporal detail in the available rainfall data. While there are prospects for improving the rainfall input to models through the use of remote sensing, an improvement in the quantitative understanding of transmission loss process seems less likely.