干旱区研究2018，Vol.35Issue(2)：249-259,11.DOI:10.13866/j.azr.2018.02.01
亚洲中部干旱区降水异常的大气环流特征
Atmospheric Circulation Characteristics of Precipitation Anomaly in Arid Regions in Central Asia
摘要
Abstract
As a climate transition zone between the Mediterranean climate region and the East Asian monsoon re-gion, the arid regions in Central Asia (including five Central Asian countries and Xinjiang of China) are influenced by high, medium and low latitude circulations, where the regional synoptic-climatic characteristics are widely differ-ent from those in Europe and East Asia.Central Asia has the unique and complicated topography and ecosystem pat-terns, such as the deserts, oases, glaciers and basins, and also has a highly representative environment of forming meteorological disasters under the influence of multiple backgrounds, multiple factors and multiple scales.These re-gions have abundant solar-heat energy, high evaporation and dramatic temperature change.Moreover, the precipitati-on in Central Asia is scarce and has extremely uneven distribution, but its value in the western and central parts of the Tianshan Mountains is high. Over the last one hundred years, a warm-wet trend occurred in the Tianshan Mountains.Precipitation in the eastern part (Xinjiang) of Central Asia was significantly increased under the active effects of low value system in Central Asia together with the high, medium and low latitude circulation systems.Cur-rently, the studies are inadequate at the aspects of the regional peculiar circulation system, occurring regularity and formation mechanism of disastrous weathers, high-resolution regional numerical model, effects of land-atmosphere in-teraction on regional weather and climate change due to the insufficient construction of integrated meteorological ob-servation network.Correspondingly, to carry out these studies is of the essential scientific significance and strategic value for the sustainable social and economic development along the Silk Road Economic Belt.关键词
天气/气候特征/降水异常/大气环流/水汽/中亚干旱区(亚洲中部干旱区)Key words
weather/synoptic-climatic characteristic/precipitation anomaly/atmospheric circulation/water va-por/Arid Region of Central Asia引用本文复制引用
杨莲梅,关学锋,张迎新..亚洲中部干旱区降水异常的大气环流特征[J].干旱区研究,2018,35(2):249-259,11.基金项目
国家自然科学基金项目(41565003,41661144024),科技部公益性行业科研专项(GYHY201506009),中央级公益性科研院所基本科研业务费专项资金项目(IDM2016001) （41565003,41661144024）
