青藏高原南北降水水汽来源模拟数据集(1979–2016)研发  

Dataset Development on Moisture Sources of Precipitation in Southern and Northern Qinghai-Xizang Plateau(1979–2016)

作　　者：张弛 Zhang,C.(Key Laboratory of Land Surface Pattern and Simulation,Institute of Geographic Sciences and Natural Resources Research,Chinese Academy of Sciences,Beijing 100101,China)

机构地区：[1]中国科学院地理科学与资源研究所,中国科学院陆地表层格局与模拟重点实验室,北京100101

出　　处：《全球变化数据学报(中英文)》2024年第3期311-317,V0311-V0317,共14页Journal of Global Change Data & Discovery

基　　金：国家自然科学基金(U2243226);中国科学院(XDA2006040202)。

摘　　要：青藏高原巨大的地形地貌不仅影响着亚洲甚至全球气候,同时自身也产生了显著的气候分异:高原南部主要受季风影响,形成温暖湿润的高原季风气候;高原北部则主要受西风带影响,形成寒冷干旱的高原大陆性气候。为了量化高原南北降水的水源差异并揭示其在气候变暖背景下的不同变化特征,作者利用数值模型分别追踪了高原南部(30°N以南)和北部(35°N以北)约40年雨季(5–9月)和年降水水汽来源。本项研究使用ERA-Interim再分析资料、CMA降水和GLDAS蒸发作为模型驱动,并设置对比实验进行验证,最终生成高原南北年降水和雨季降水来源数据。数据集内容包括:(1)高原南北区范围;(2)高原南北区1979–2016年逐年和雨季降水来源数据,空间分辨率为1°×1°(单位:mm);(3)高原南北1979–2016年区域平均年和雨季降水量数据。数据集存储为.nc、.shp和.xlsx格式,由17个数据文件组成,数据量为66.4 MB(压缩为1个文件,53.7 MB)。The massive topography of the Qinghai-Xizang Plateau not only influences the climate of Asia and even globally,but also appearances significant climatic variations within itself:the southern plateau is mainly influenced by monsoons,forming a warm and humid plateau monsoon climate;while the northern plateau is primarily affected by westerlies,resulting in a cold and arid plateau continental climate.To quantify the differences in precipitation sources between the southern and northern plateau and reveal their distinct changing characteristics under global warming,the research team used a numerical model to track the moisture sources for seasonal(May–September)and annual precipitation in both the southern(south of 30°N)and northern(north of 35°N)plateau regions over approximately 40 years.The study used ERA-Interim reanalysis data,CMA precipitation and GLDAS evaporation as model drivers,and conducted comparative experiments for validation,ultimately generating precipitation source data for both the southern and northern plateau regions annually and during the rainy season.The dataset includes:(1)the boundaries of southern and northern plateau regions;(2)annual and seasonal precipitation source data for southern and northern plateau regions from 1979–2016,with a spatial resolution of 1°×1°,measured in mm;(3)regional average annual and seasonal precipitation data for southern and northern plateau regions from 1979–2016.The dataset is archived in.nc,.shp,and.xlsx formats,consisting of 17 data files with a total size of 66.4 MB.(compressed into 1 file,53.7 MB).

关 键 词：青藏高原 气候变化 降水 水汽来源 

分 类 号：P426.6[天文地球—大气科学及气象学]