当前位置: X-MOL 学术Earth Sci. Rev. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Evolution mechanisms, impacts, and variations of the vortices originated from the Tibetan Plateau
Earth-Science Reviews ( IF 12.1 ) Pub Date : 2023-05-27 , DOI: 10.1016/j.earscirev.2023.104463
Lun Li , Renhe Zhang

Tibetan Plateau (TP) is the highest plateau in the world and the headwater region for many great rivers. Precipitation over the TP influences both local and downstream water resources. Tibetan Plateau vortices (TPVs) are important rainfall triggers generated over the TP, which significantly affect downstream precipitation when moving off the TP. Research on TPVs is conducive to understanding the precipitation variations and predictions over the TP and in downstream regions. Here, recent progress in studies of TPVs is reviewed, in which the TPV evolution and eastward-moving mechanisms, impacts, and variations at different timescales, are particularly concerned. Interaction among large-scale circulations, TPV winds, and heating field determines the evolution of TPVs, with the leading factors being different in different stages. Most of the intense rainfall over the eastern TP and its eastern flank is caused by TPVs, and TPVs contribute more than 40% of the total summer precipitation and more than 50% of the precipitation over the northern TP in June. TPVs are demonstrated greatly affecting the downstream weather systems-southwest vortices, and the underlying mechanism is clarified. Additionally, in the warming context, TPVs are responsible for the north-wetting and south-drying variation pattern on the TP in recent decades. TPVs present distinctive diurnal, intraseasonal, and interannual variations, and have distinguishing trends over the northern and southern TP. Despite of great achieved progress, effect of topography and land surface conditions on TPVs, variations in TPVs and the related precipitation under the effects of climate changes, as well as the techniques for identifying TPVs based on multiple observational data, are challenges worth further pursuing in future.



中文翻译:

起源于青藏高原的涡旋的演化机制、影响和变化

青藏高原(TP)是世界上海拔最高的高原,也是许多大河的发源地。青藏高原的降水影响当地和下游的水资源。青藏高原涡旋(TPVs)是青藏高原上空产生的重要降水诱因,在离开青藏高原时对下游降水有显着影响。对青藏高原的研究有助于了解青藏高原及其下游地区的降水变化和预测。本文综述了TPV研究的最新进展,特别关注TPV在不同时间尺度下的演化和东移机制、影响和变化。大尺度环流、TPV风和热场的相互作用决定了TPV的演化,不同阶段的主导因素不同。高原东部及其东翼的强降水主要由TPV引起,其中TPV占夏季总降水量的40%以上,占高原北部6月降水量的50%以上。TPVs 被证明对下游天气系统 - 西南涡有很大影响,并阐明了潜在机制。此外,在变暖的背景下,TPVs 是近几十年来 TP 北湿南干变化模式的原因。TPV 呈现出独特的昼夜、季节内和年际变化,并且在北部和南部 TP 上具有明显的趋势。尽管取得了很大进展,但地形和地表条件对 TPV 的影响、气候变化影响下 TPV 和相关降水的变化,

更新日期:2023-05-31
down
wechat
bug