北极两大河流域历史水循环关键变量数据集（1998-2017）

本产品提供了项目组发展的陆面模式VIC-CAS数值模拟的1998-2017年北极两条大河（北美大陆：Mackenzie，欧亚大陆：Lena）的水循环关键变量数据集，包括：降水量、蒸散发、地表径流、地下径流、冰川径流、雪水当量和三层土壤湿度等7个变量。该数据集空间分辨率为50km，时间分辨率为月。该数据集可用于气候变化下北极大河流域水量平衡变化分析，也可用于遥感数据产品及其他模型模拟结果的对比和验证。

This dataset product provides key hydrological cycle variables for two major Arctic rivers—Mackenzie River in North America and Lena River in Eurasia—during 1998–2017, which were simulated using the land surface model VIC-CAS developed by the project team. A total of 7 variables are included: precipitation, evapotranspiration, surface runoff, subsurface runoff, glacier runoff, snow water equivalent, and three-layer soil moisture. This dataset has a spatial resolution of 50 km and a monthly temporal resolution. It can be used to analyze water balance changes in major Arctic river basins under climate change, as well as to compare and validate against remote sensing data products and simulation results from other models.