Measurements and Modeling of Loess-Paleosol Profile Hydrology

This data serves as a data repository for McDowell et al, XXXX. It includes the Hydrus 1D input and output files for 12 different scenarios: three different soil profiles simulated for four different year with varying total annual precipitation. These files are located in the Hydrus 1D model results folder and for more information on the file names see the README text. The initial conditions for each model were determined by modelling the 3 years prior with daily time steps. These spin-up models are not included in the repository. This repository also contains the measured soil water retention curves (SWRC) and hydraulic conductivity curves (HCC) used as model inputs. The SWRC and HCC were measured using a Hyprop2 (METER Group) and all the measurements are location in the Hyprop_measurements excel file. Each sheet provides the raw data and the SWRC and conductivity HCC evaluations for a different sample. These data provide the measurements, not the fitted cuvres. The data can be fitted with different SWRC/HCC models using the raw data and free HYPROP-FIT software or fitting the model directly to the measurement data included here using R or other statistical packages.

本数据集为McDowell等人（XXXX）的研究提供数据存储支撑。其包含12种不同情景下的Hydrus 1D模型输入与输出文件：针对3种不同土壤剖面，模拟了4个不同年度且年总降水量各异的情景。上述文件存储于Hydrus 1D模型结果文件夹中，若需了解文件名的详细说明，请参阅README文本文件。各模型的初始条件通过以日为时间步长对前3年进行模拟确定，此类自旋启动（spin-up）模拟未包含于本数据仓库中。本仓库还包含用作模型输入的实测土壤水分特征曲线（soil water retention curves, SWRC）与导水率曲线（hydraulic conductivity curves, HCC）。SWRC与HCC通过Hyprop2（METER集团）设备测得，所有测量数据均存储于Hyprop_measurements Excel文件中。该文件的每个工作表分别对应不同样品的原始数据、SWRC拟合结果与导水率HCC评估结果。此处提供的为实测数据，而非拟合后的曲线。用户可借助原始数据与免费的HYPROP-FIT软件，或通过R语言及其他统计工具对本数据集包含的实测数据直接拟合，以构建不同的SWRC/HCC模型。