Water Stable Isotopes and d-excess Compositions of Precipitation Dataset in Guyuan Station

A field precipitation observation station (Guyuan Station) was set in Guyuan, China (36°00′16″N, 106°17′07″E) and 66 event-based precipitation samples from June 2018 to August 2020 were collected immediately after each precipitation event. Through indoor experimental analysis of precipitation samples, a dataset of stable isotopes of hydrogen and oxygen and deuterium excess compositions of precipitation in Guyuan Station was obtained. The dataset includes stable isotopes (δ²H and δ¹⁸O) and deuterium excess (d-excess) compositions of precipitation in Guyuan Station.在中国固原设立了一座名为固原站的野外降水观测站，其地理坐标为北纬36°00′16″、东经106°17′07″。该观测站于2018年6月至2020年8月期间，在每场降水事件结束后即刻采集了66场降水的样本。通过对上述降水样本开展室内实验分析，最终得到固原站降水氢、氧稳定同位素及氘盈余（deuterium excess，d-excess）组成数据集。该数据集涵盖固原站降水的氢稳定同位素（δ²H）、氧稳定同位素（δ¹⁸O）及氘盈余（d-excess）组成信息。