日本地球惑星科学連合2019年大会

講演情報

[E] ポスター発表

セッション記号 A (大気水圏科学) » A-AS 大気科学・気象学・大気環境

[A-AS03] 大規模な水蒸気場と組織化した雲システム

2019年5月28日(火) 10:45 〜 12:15 ポスター会場 (幕張メッセ国際展示場 8ホール)

コンビーナ:三浦 裕亮(国立大学法人 東京大学大学院 理学系研究科 地球惑星科学専攻)、濱田 篤(富山大学)、横井 覚(海洋研究開発機構)、佐藤 正樹(東京大学大気海洋研究所)

[AAS03-P07] Study on atmospheric circulation characteristics of precipitation anomalies in arid region of Central Asia

*Lianmei Yang1Xuefeng Guan1 (1.Institute of Desert Meteorology, China Meteorological Administration,)

キーワード:Arid region of Central Asia, synoptic-climatic characteristics, precipitation anomaly, atmospheric circulation, water vapor

As climate transition zone between Mediterranean climate region and East Asian monsoon region, arid region of Central Asia (including five Central Asian countries and Xinjiang province of China) which is influenced by high, middle and low latitude circulations has different synoptic-climatic characteristics from that of Europe and East Asia while its climate characteristics also varies greatly within the region. Central Asia has unique and complicated topography and ecosystem patterns like deserts, oasis, glaciers and basins, forming a highly representative meteorological disaster-breeding environment under the influence of multiple-background, multiple-factor and multiple-scale. This area has abundant solar-heat energy, large evaporation and dramatic temperature changes. Besides, its precipitation is scarce and has extremely uneven distribution with high value in the western and middle parts of Tianshan Mountains. Over the last one hundred years, Central Asia has experienced a warm and wet trend. Central Asia low value system together with the high, middle and low latitude circulation systems linked by West Asia westerly jet stream have contributed to the interdecadal and interannual variations of precipitation in Xinjiang. However, due to the insufficient construction of integrated meteorological observation network, the studies concerning regional featured circulation system, regularity and mechanism of disastrous weathers, high resolution regional numerical model, impacts of land-atmosphere interaction on regional weather and climate change prediction are still inadequate. Correspondingly, to carry out those studies has essential scientific significance and strategic value for the sustainable social and economic development in Silk Road Economic Belt.