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.”

本数据集包含投稿于《地球物理研究快报》（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》所使用的代码与相关数据。软件需求汇总于requirement.txt文件；水文模拟输入数据存放于TLnewtest2sfb2文件夹；模拟所用的观测数据已在Python脚本中以注释形式标注。需注意，本次水文模拟依托高性能计算（High Performance Computing, HPC）Linux系统开展并行计算。

以下为该论文的摘要：
“源头流域在区域供水与生态水文学领域发挥着至关重要的作用，定量解析此类流域的水文分配机制具有关键意义，在气候变化背景下尤为突出。近期研究强调了地下关键带（Critical Zone, CZ）结构在调控山区流域降水分配过程中的重要性，但现有研究鲜有明确考虑三维地下关键带结构。本研究基于地震波速度反演得到的三维地下关键带结构，构建了贴合实际的合成流域模型。随后通过集成水文模拟方法，探究了风化基岩底部形态对山区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，风化基岩底部形态不仅会改变径流与地下动态储水量的量级，还会影响其峰值出现时间。”