The research and projection of regional and basin-scale precipitation change adaptable to water problems in Asia.

适应亚洲水问题的区域和流域尺度降水变化研究与预测.

基本信息

  • 批准号:
    17310003
  • 负责人:
  • 金额:
    $ 10.97万
  • 依托单位:
  • 依托单位国家:
    日本
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
  • 财政年份:
    2005
  • 资助国家:
    日本
  • 起止时间:
    2005 至 2007
  • 项目状态:
    已结题

项目摘要

Using two regional atmospheric models, some numerical experiments are performed in order to simulate changes of regional climate and water cycles in some river basins. First, we estimated the effect of global warming on the snow depth in the mountainous areas in Japan. After confirming the accuracy of hindcast simulations of snow depth by the hi-resolved numerical models, a dynamical downscaling is conducted for the future projection by Pseudo-Global-Warming method. This method reduces the uncertainty caused by the interannual variability and excludes the model biases in the present climatology reproduced by each GCM. Seasonal cycle of water balance is also simulated in a river basin in Japan. Second, We also investigated the relation between convective clouds and topography, ie., orography and the surface conditions including anthropogenic modification in Japan, China and Mongolia. The formation mechanism of the convective clouds is clarified. Third, this study focuses on the climatic change in early summer rainfall in East Asia (Mei-yu rainband). The numerical model well reproduces the change in the Mei-yu rainband over Southern China between the 1960s and the 1990s, suggesting that the climatic features of the Mei-yu rainband are well controlled by the climatic change in a large-scale circulation. Similarly, we clarify the regional climate systems around Tibetan Plateau and Mongolia. Finally, we analyzed perceptible water observed by the dense GPS network in Japan and clarified the moisture transport and cloud formation of clouds. Data assimilation of GPS perceptible water was also investigated in order to improve the accuracy of the short-term weather forecast.
利用两个区域大气模式,对区域气候变化和流域水循环变化进行了数值模拟。首先,我们估算了全球变暖对日本山区积雪深度的影响。在验证了高分辨率数值模式对积雪深度后报模拟的准确性后,利用伪全球变暖方法对未来积雪深度进行了动态降尺度预测。这种方法减少了年际变化引起的不确定性,并排除了模式的偏差,在目前的气候再现每个GCM。还模拟了日本一个流域的水量平衡季节循环。其次,我们还研究了对流云与地形的关系,日本、中国和蒙古的地形和地表条件,包括人为改造。阐明了对流云的形成机制。第三,研究东亚初夏降水(梅雨雨带)的气候变化。数值模式较好地模拟了20世纪60 ~ 90年代华南梅雨带的变化,表明华南梅雨带的气候特征受大尺度环流气候变化的控制。同样,我们也阐明了青藏高原和蒙古的区域气候系统。最后,我们分析了在日本密集的GPS网络观测到的可感知的水,并澄清了云的水分输送和云的形成。为了提高短期天气预报的准确性,还研究了GPS可感知水的同化。

项目成果

期刊论文数量(0)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Diurnal Cycle of Convective Instability around the Central Mountains in Japan during the Warm Season.
  • DOI:
    10.1175/jas3423.1
  • 发表时间:
    2005-05
  • 期刊:
  • 影响因子:
    3.1
  • 作者:
    Tomonori Sato;F. Kimura
  • 通讯作者:
    Tomonori Sato;F. Kimura
A composite analysis of diurnal cycle of GPS precipitable water vapor in central Japan during Calm Summer Days
  • DOI:
    10.1007/s00704-006-0293-x
  • 发表时间:
    2008-03
  • 期刊:
  • 影响因子:
    3.4
  • 作者:
    G. Li;F. Kimura;T. Sato;D. Huang
  • 通讯作者:
    G. Li;F. Kimura;T. Sato;D. Huang
Comparison of the WRF and MM5 Models for Simulation of Heavy Rainfall along the Baiu Front
  • DOI:
    10.2151/sola.2005-051
  • 发表时间:
    2005
  • 期刊:
  • 影响因子:
    1.9
  • 作者:
    H. Kusaka;A. Crook;J. Dudhia;K. Wada
  • 通讯作者:
    H. Kusaka;A. Crook;J. Dudhia;K. Wada
Dust transport along a cold front : A case study of a cyclone observed on 19-20 April 2000 in Northeast Asia
沿着冷锋的沙尘输送:2000年4月19日至20日在东北亚观测到的气旋的案例研究
  • DOI:
  • 发表时间:
    2007
  • 期刊:
  • 影响因子:
    0
  • 作者:
    Adachi;S.;F. Kimura;S. Sugata;M. Hayasaki and S. Wakamatsu
  • 通讯作者:
    M. Hayasaki and S. Wakamatsu
Regional climate simulations to diagnose environmental changes in Mongolia
用于诊断蒙古环境变化的区域气候模拟
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KIMURA Fujio其他文献

KIMURA Fujio的其他文献

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{{ truncateString('KIMURA Fujio', 18)}}的其他基金

Radiation and Energy Balance Monitoring
辐射和能量平衡监测
  • 批准号:
    11201201
  • 财政年份:
    1999
  • 资助金额:
    $ 10.97万
  • 项目类别:
    Grant-in-Aid for Scientific Research on Priority Areas (B)
Diurnal Variation of Precipitation and Moisture Transport by Local Circulations
当地环流降水和水汽输送的日变化
  • 批准号:
    08454128
  • 财政年份:
    1996
  • 资助金额:
    $ 10.97万
  • 项目类别:
    Grant-in-Aid for Scientific Research (B)
Horizontal and vertical transport of heat and moisture over complex terrain.
复杂地形上热量和湿气的水平和垂直输送。
  • 批准号:
    05640473
  • 财政年份:
    1993
  • 资助金额:
    $ 10.97万
  • 项目类别:
    Grant-in-Aid for General Scientific Research (C)

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