Datasets of the runoff coefficient spatial distribution in the Yellow River Basin during 1979-2000 simulated by eight PMIP3/CMIP5 models

The Spatial differentiation of the Runoff coefficient is a comprehensive index that represents the influence degree of climate and hydrological factors and runoff formation of the underlying watershed. Comparing the spatial differentiation characteristics of simulated and observed runoff coefficients can be used to indicate the comprehensive simulation ability of the model to climate and hydrological elements. In this dataset, precipitation and runoff data from eight Earth system model tests of The Paleoclimate Modelling Intercomparison Project 3(PMIP3) over the past millennium and The Coupled Model Intercomparison Project Phase 5 (CMIP5) total Forced historical simulation were used. Combined with the daily total runoff data of 10km resolution in China from 1979 to 2000 provided by the National Earth system science data center and the grid data of monthly surface precipitation in China from 1979 to 2000 provided by China Meteorological data network, the runoff coefficient of the Yellow River Basin from 1979 to 2000 was calculated. By comparing the runoff coefficients calculated by the eight models, the spatial simulation ability of the models was further evaluated. 

该数据集聚焦于径流系数的空间差异分析，该系数作为一个综合指标，反映了气候及水文因素对地下流域径流形成的影响程度。通过对比模拟与观测径流系数的空间差异特征，可以评估模型对气候和水文要素的综合模拟能力。本数据集整合了过去千年间由《古气候模式互操作性项目3》（PMIP3）的八个地球系统模型测试以及《耦合模式互操作性项目第5阶段》（CMIP5）的总强迫历史模拟中的降水和径流数据。此外，结合了由国家地球系统科学数据中心提供的1979至2000年间中国10公里分辨率的每日总径流数据，以及由中国气象数据网提供的1979至2000年间中国月表面降水网格数据，计算了1979至2000年黄河流域的径流系数。通过对八个模型计算出的径流系数进行比较，进一步评估了模型的时空模拟能力。