20 TO 30-DAY AND 30 TO 60-DAY OSCILLATIONS IN ASSIMILATED GLOBAL DATASETS USING TRMM RAINFALL OBSERV

来源 :热带气象学报(英文版) | 被引量 : 0次 | 上传用户:lyxdaisy
下载到本地 , 更方便阅读
声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架
论文部分内容阅读
The influences of Tropical Rainfall Measuring Mission (TRMM) precipitation products on the structure and underlying physics of intraseasonal oscillation (ISO) are investigated with the U.S. National Aeronautics and Space Administration Goddard Earth Observing System model version 3 (GEOS-3) data assimilation system (DAS). The strong ISO phase in the 1998 summer is apparently located in the Asian monsoon region and the east equatorial Pacific region. The eastward propagation is a dominant feature for the tropical ISO at 20 to 30-day oscillation while the northeastward propagation is the salient ISO at 30 to 60-day oscillation over the 10°N to 25°N belt region. It appears that the Kelvin wave structure is for the tropical 20 to 30-day oscillation. The tropical 30 to 60-day oscillation has the characteristics of the Kelvin-Rossby wave. The impact of satellite-derived precipitation (and its associated latent heating) on the ISO intensity is limited in the GEOS-3 assimilation system. However, its impact on the ISO spatial structures is obvious. Overall, the results demonstrate a better eastward propagation and a northward propagation of ISO with the TRMM precipitation simulation, indicating that latent heating is very important in exciting the equatorial ISO.
其他文献
目的了解全身振动职业危害对公交车司机健康的影响.方法对青岛市某路公交汽车的30名驾驶员进行全身振动的数据测量和对公交车司机进行医学查体和症状调查.结果 Ahw(4)为7.41m
铺筑试验路段是对生产配合比的验证阶段,是沥青拌和机按照生产配合比结果进行试拌、试铺、取样的马歇尔试验,同时从路上钻取芯样观察空隙率的大小,由此确定生产用的标准配合
本文结合项目的绳索取心钻探经验,总结、分析、研究了在实际工作中经常遇到的钻具级配、钻孔结构设计、钻进参数的经验取值、钻杆内壁、钻孔壁泥皮的控制、调整及重大钻探技
全液压汽车起重机的特点,液压起重机主要回路,液压系统常见故障原因,系统压力不足和液压自行缸回缩故障的诊断及维修方法。 Full hydraulic truck crane characteristics, t
标准贯入试验是现场测定土体工程性质的重要原住试验,是现场快速判定土体密实度的重要依据,具有及时、可靠、经济等特点,在地质勘察中被广泛的应用.本文通过介绍标准贯入试验
MicrosoftExcel2003的应用领域十分广泛.其优势是统计计算与绘图制表,便于进行测量专业内业资料整理.充分利用Excel的强大功能为工程测量专业服务,利用Excel处理庞大数据,给
瓯南大桥超长细桩在国内桥梁建筑中极为少见,施工质量不易控制.以该工程实践为例,对超长细桩的施工质量控制进行简要总结.
我省自动气象站已经全面进入单轨运行阶段,本文从降水、天气现象、地温、大风等气象要素入手,比较全面地阐述了自动站报表预审的注意事项.
"紫牛法则",由美国营销专家提出,也就是我们所说的差异化营销战略.在产品包装设计中,熟练的应用"紫牛法则",深度审视包装设计的创意策略,就能够独辟蹊径,取得意想不到的成功.
In the last several decades, the underlying surface conditions on the Qinghai-Tibet Plateau have changed dramatically, causing permafrost degradation due to cli