Changes in mean atmospheric structures around Japan during July due to global warming in regional climate experiments using a cloud-system resolving model

Changes in mean atmospheric structures around Japan during July due to global warming in regional climate experiments using a cloud-system resolving model
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使用云系统解析模型进行的区域气候实验中,由于全球变暖而导致的 7 月份日本周围平均大气结构的变化

DOI:
10.3178/hrl.4.11
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发表时间:
2010
影响因子:
1.1
通讯作者:
T. Kato
T. Kato
中科院分区:
--
文献类型:
--
作者:
S. Kanada;M. Nakano;T. Kato

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:利用水平分辨率为5公里的云系分辨非流体静力学模式进行区域气候试验,以预测日本附近地区在温暖季节由于全球变暖而发生的极端降水变化。初始和边界条件采用全球20公里模式5月至10月10年周期的结果,在目前和未来的气候。模拟结果表明,在未来的气候中,日本列岛太平洋一侧的日降水量在7月份的第90百分位值将增加。未来气候的月平均场表明,太平洋提供了丰富的比湿,比湿约为20 g kg(cid:514)1,比现在的气候大3 g kg(cid:514)1。在未来的气候中,西日本以南海面附近的平均等效位温可达370 K,而从亚洲大陆到西日本西北部的中层(约5 km)干燥区将延伸。结果,日本附近的对流不稳定加剧,日本太平洋一侧形成强烈的深对流系统。
: Regional climate experiments using a cloud-system resolving non-hydrostatic model with a horizontal resolution of 5 km are conducted in order to project changes in precipitation extremes in the vicinity of Japan during the warm season due to global warming. The results of a global 20-km model from May to October for 10-year periods in the present and future climates are adopted as the initial and boundary conditions. The simulated results project an increment in 90 th -percentile values of daily precipitation on the Pacific side of the Japanese Islands during July in the future climate. Monthly mean fields during the month in the future climate show that abundant specific humidity of 20 g kg (cid:514) 1 , 3 g kg (cid:514) 1 larger than that in the present climate, is supplied from the Pacific Ocean. In the future climate, mean equivalent potential temperature reaches 370 K near the sea surface south of western Japan, while a middle-level (around 5 km) drier region extends from the Asian Continent to the northwestern part of western Japan. As a result, convective instability is intensified in the vicinity of Japan and intense, deep convective systems form on the Pacific side of Japan.
DOI: --
发表时间: 2005
期刊: Science Online Letters on the Atmosphere 1
影响因子: --
作者:
Wakazuki;Y.;M.Yoshizaki;K.Yasunaga;C.Muroi;S.Kanada;A.Hashimoto;T.Kato;K.Kurihara;A.Noda
通讯作者: A.Noda