降水
气候学
北半球
经度
纬度
地中海气候
环境科学
水资源
南半球
趋势分析
地中海盆地
地理
自然地理学
气象学
地质学
计算机科学
生物
机器学习
考古
生态学
大地测量学
作者
Tommaso Caloiero,Paola Caloiero,Francesco Frustaci
摘要
Abstract The spatiotemporal analysis of a region's precipitation climate regime could be particularly interesting for many fields of applied sciences, such as climatology, hydrology and water resources management. In this study, the precipitation trends at seasonal and annual scale, over a large area of the northern Hemisphere have been analysed based on a globally gridded precipitation data sets of monthly observations. In particular, among the several data sets available in literature, with spatial resolutions of 0.5° longitude/latitude, in this work the Global Precipitation Climatology Centre Full Data Reanalysis Version 6 data set has been used. The broad extension of the area under investigation allowed a better understanding of trend precipitation patterns over space. In fact, yearly results evidenced a marked negative rainfall tendency in the eastern Mediterranean (more than −20 mm/10 years) and in North Africa (until −16 mm/10 years), while a relatively large positive trend (more than 20 mm/10 years) in central and northern Europe has been observed.
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