Simulation of Infiltration and Surface Runoff - A Windows-Based Hydrologic Modeling System HYDROL-INF
Simulation of Infiltration and Surface Runoff - A Windows-Based Hydrologic Modeling System HYDROL-INF
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DOI：
10.1061/40856(200)429
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发表时间：
2006-05
期刊：
影响因子：
--
通讯作者：
X. Chu;M. Mariño
中科院分区：
文献类型：
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作者：
X. Chu;M. Mariño
降雨过程中的入渗和地表径流是两个密切相关的过程，模拟这两个过程对于地表和地下系统的水量和水质研究至关重要。将降雨分为这两个主要的水通道是任何水文建模的基础。在连续水文模型中，模拟两次降雨事件（干旱时间段）之间土壤水分的排水和再分布也是必不可少的。本文提出了一种新的算法来模拟非稳定降雨条件下任意初始水量分布的层状土壤剖面入渗及其产生的地表径流。两个不同的时期，preponding和postponding，考虑。该模型跟踪湿润锋沿着土壤剖面的运动，检查积水状态，并处理积水和非积水条件之间的转换。该模型进一步扩展到复杂的降雨模式，包括潮湿的时间段与不稳定的降雨和干燥的时间段没有降雨，通过将一个分区模型，占排水和再分配的土壤剖面。在此基础上，开发了一个基于Windows的建模系统HYDROL-INF，该系统将数据预处理、模型运行和后处理集成在一个友好的Windows界面中。为了便于参数估计，参数数据库的开发和纳入。此外，HYDROL-INF系统还包括一些有用的水文工具/计算器，可用于应用水文调查。
Simulation of infiltration and surface runoff, two closely-correlated processes during rainfall events (wet time periods), is critical to water quantity and quality studies for both surface and subsurface systems. Partitioning rainfall into these two primary water pathways is fundamental to any hydrologic modeling. In a continuous hydrologic model, it is also essential to simulate drainage and redistribution of soil water between two rainfall events (dry time period). A new algorithm is proposed to simulate infiltration into a layered soil profile of arbitrary initial water distributions under unsteady rainfall and the resultant surface runoff. Two distinct periods, preponding and post-ponding, are taken into account. The model tracks the movement of the wetting front along the soil profile, checks the ponding status, and handles the shift between ponding and non-ponding conditions. The model is further extended to complex rainfall patterns that include both wet time periods with unsteady rainfall and dry time periods without rainfall by incorporating a compartmental model that accounts for drainage and redistribution in the soil profile. Furthermore, a Windowsbased modeling system, HYDROL-INF, is developed, which integrates preprocessing of data, model run, and post-processing in a user-friendly Windows interface. To facilitate parameter estimation, a parameter database is developed and incorporated. Additionally, the HYDROL-INF system also includes some useful hydrologic tools/calculators that can be used in applied hydrologic investigations.