High-resolution hydraulic parameter maps for surface soils in tropical South America

Spatial data files holding gridded parameter maps of surface soil hydraulic parameters derived from a selection of pedotransfer functions. Modern land surface model simulations capture soil profile water movement through the use of soil hydraulics sub-models, but good hydraulic parameterisations are often lacking - especially in the tropics - and it is this lack that we fill here in the context of South America. Optimal hydraulic parameter values are given for the Brooks and Corey, Campbell, van Genuchten-Mualem and van Genuchten-Burdine soil hydraulic models, which are widely-used hydraulic sub-models in many land surface models (e.g. Joint UK Land Environment Simulator JULES). Full details about this dataset can be found at https://doi.org/10.5285/4078678b-768f-43ff-abba-b87712f648e9本数据集为空间数据文件，包含基于多种土壤传递函数（pedotransfer function）推导得到的表层土壤水力参数网格化参数图。现代陆面模式模拟通过耦合土壤水力学子模型刻画土壤剖面水分运移过程，但优质的水力参数化方案往往较为匮乏，在热带地区尤为突出；本数据集正是针对南美洲区域填补了这一研究空白。数据集提供了布鲁克斯-科里（Brooks and Corey）、坎贝尔（Campbell）、范吉努赫特-穆勒姆（van Genuchten-Mualem）以及范吉努赫特-伯丁（van Genuchten-Burdine）四类土壤水力模型的最优参数值，上述模型是众多陆面模式（例如英国联合陆面环境模拟器JULES）中广泛使用的水力学子模型。有关本数据集的完整详情可访问：https://doi.org/10.5285/4078678b-768f-43ff-abba-b87712f648e9