Three-dimensional electrical resistivity datasets of the Choushui River Alluvial Fan, Pingtung Plain, and Yilan Plain, Taiwan

This repository provides three-dimensional (3D) electrical resistivity model datasets for three major groundwater regions in Taiwan: the Choushui River Alluvial Fan (CRAF), the Pingtung Plain, and the Yilan Plain. The datasets characterize regional-scale subsurface resistivity structures and are intended to support interdisciplinary research involving subsurface characterization, including hydrogeology, engineering geology, environmental studies, geophysics, and Earth system science. The 3D resistivity models were constructed by integrating site-based one-dimensional (1D) resistivity profiles derived from transient electromagnetic (TEM), vertical electrical sounding (VES), and borehole resistivity (BR) surveys. To ensure consistency among heterogeneous data sources, all 1D profiles were processed using a unified workflow that included depth resampling at 1 m intervals, standardization to a maximum investigation depth of 200 m, and normalization of resistivity values to minimize systematic differences between survey methods. The processed profiles were subsequently spatially interpolated to generate volumetric resistivity distributions representing the subsurface structure of each study area. The repository structure and data formats are designed to facilitate straightforward reuse and extension across multiple research disciplines.本数据集仓库提供中国台湾地区三大地下水文区域的三维（3D）电阻率模型数据集，分别为浊水溪冲积扇（Choushui River Alluvial Fan，CRAF）、屏东平原与宜兰平原。本数据集刻画了区域尺度的地下电阻率结构，旨在支撑涉及地下结构表征的跨学科研究，涵盖水文地质学、工程地质学、环境科学、地球物理学以及地球系统科学等领域。本次三维电阻率模型通过整合由瞬变电磁（Transient Electromagnetic，TEM）、垂向电测深（Vertical Electrical Sounding，VES）与钻孔电阻率（Borehole Resistivity，BR）探测获取的测点级一维（1D）电阻率剖面构建而成。为保障多源异构数据间的一致性，所有一维剖面均通过统一处理流程完成预处理：包括以1米间隔进行深度重采样、将最大探测深度统一标准化至200米，以及对电阻率数值进行归一化处理，以尽可能消除不同探测方法间的系统偏差。经预处理后的剖面随后通过空间插值，生成各研究区域代表地下结构的体电阻率分布数据。本数据集仓库的结构与数据格式均经过优化设计，以方便多研究学科的便捷复用与拓展。