Hydrologic modeling and field data for studying the role of subsurface critical zone structure on hydrological partitioning

This dataset contains the codes and data used in the manuscript “Influence of Subsurface Critical Zone Structure on Hydrological Partitioning in Mountainous Headwater Catchments” submitted to Geophysical Research Letters. The software requirement are summarized in requirement.txt; hydrologic modeling input data are in the folder TLnewtest2sfb2; the observation data used in the simulation are indicated as comments in the python scripts. Note that the hydrologic modeling was run in HPC (Linux system) with parallel computing.

Below are the abstract of the manuscript:
“Headwater catchments play a vital role in regional water supply and ecohydrology, and a quantitative understanding of the hydrological partitioning in these catchments is critically needed, particularly under a changing climate. Recent studies have highlighted the importance of subsurface critical zone (CZ) structure in modulating the partitioning of precipitation in mountainous catchments; however, few existing studies have explicitly taken into account the 3D subsurface CZ structure. In this study, we designed realistic synthetic catchment models based on seismic velocity-estimated 3D subsurface CZ structures. Integrated hydrologic modeling is then used to study the effect of the shape of the weathered bedrock bottom on various hydrologic fluxes and storages in mountainous headwater catchments. Numerical results show that the shape of the weathered bedrock bottom not only affects the magnitude but also the peak time of both streamflow and subsurface dynamic storage.”

本数据集包含投稿至《Geophysical Research Letters》的论文"山地源头流域地下关键带结构对水文分配的影响"中所使用的代码与数据。软件依赖已汇总至requirement.txt文件；水文模拟（hydrologic modeling）输入数据存放于TLnewtest2sfb2文件夹；模拟所用的观测数据已以注释形式标注于Python脚本中。请注意，本研究的水文模拟运行于搭载Linux系统的高性能计算（High Performance Computing，HPC）平台，并采用并行计算方式。

该论文的摘要如下：
"源头流域对区域供水与生态水文学具有至关重要的作用，对这类流域的水文分配进行定量理解尤为关键，在气候变化背景下更是如此。现有研究已强调了地下关键带（Subsurface Critical Zone，CZ）结构在调节山地流域降水分配中的重要性，但目前鲜有研究明确考虑三维地下关键带结构。本研究基于地震波速估算的三维地下关键带结构，构建了符合实际情况的合成流域模型。随后通过集成水文模拟方法，探究了风化基岩底面形态对山地源头流域各类水文通量与储水量的影响。数值模拟结果表明，风化基岩底面形态不仅会影响径流与地下动态储水量的量级，还会改变其峰值出现时间。"