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1.预告龙卷风发展的经验方法(An Empirical Method of Forecasting TornadoDevelopment.By E.J.Fawbush,R.C.Miller,L.G.Starrett,P.1—9)。本文简要地讨论了美国龙卷风的频率分布,并说明预告其严重的地方性风暴的一个经验方法。即应用空气柱的稳定性湿度和风在水平方向及垂直方向的分布,寻出其经验特性,预告这些风暴的形成。本文从天气的观点出发讨论一个典型龙卷风的发展,並简要地说明了一次少见的情形以及三十五次实验预告的核对。 相似文献
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《中国气象科学研究院年报》2001,(1)
Approved by the scientific journal management agency of the PRC Ministry of Science and Technology, both Quarterly Journal of Applied Meteorology and Meteorological Science and Technology will change from quarterly journal into bimonthly journal from the first issue of 2002.Quarterly Journal of Applied Meteorology is a high-level academic journal sponsored jointly by the Chinese Academy of Meteorological Science, the National Meteorological Center, and the National Satellite Meteorological Center, published by the 相似文献
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《气象科学进展》2014,(5)
<正>一、数据来源及统计方法利用中国知网学术期刊网络出版总库(以下简称CAJD)和ISI Web of Science平台SCI-E数据库,检索统计国内外有关"集合预报"主题论文。采用检索式分别为主题=(集合预报)和TS=("stochastic dynamic forecast*"OR"stochastic dynamic predict*"OR"ensemble forecast*"OR"ensemble predict*")进行检索,学科类别限定为全学科,数据年限选择所有年,文献类型选择论文和综述,检索命中该领域国内和国际论文分别为542篇(检索日期为2014年9月)和1858篇(检索日期为2014年9月)。 相似文献
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“龙吐须,渔民忧,起大风,网仔收”,这是福建沿海群众常说的一句话。“民忧”“网收”,说明灾害性天气对人民生命财产有严重威胁,也反映着“吐龙须”与灾害性天气有一定的联系。现将本人 1965—1980年对青龙卷的观测,特别是在1965—1974年期间,每天5—6时,17—20时,长达十年的观测数据,进行初步整理分析,供做地方天气预报时参考。 相似文献
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四川盆地是全国日照时数最少地区之一 ,年日照时数大多少于 14 0 0小时 ,最少的地方不足 80 0小时。不知何年何月 ,是何方神圣 ,初来乍到四川 ,不习惯四川盆地阴沉多雨多雾的气候 ,便以“蜀犬吠日”来形容四川盆地光照之少 ,意即四川盆地难见日光 ,以至连狗见了太阳都要惊叫。这颇为夸张 ,而且带着贬意 ,还成了比喻少见多怪的成语流传千古。四川的气候果真不如光照丰富的地方 ?以四川人的廉虚态度来审视日照少的不足 :日照时数少影响到四川人的身高 ,四川男子平均身高为全国倒数第二 ,女子倒数第三 ,明显低于年日照时数 2 0 0 0多小时的北方… 相似文献
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We discuss the results of Gibson and Sailor (Boundary-Layer Meteorol 145:399–406, 2012) who suggest several corrections to the mathematical formulation of the Lagrangian particle dispersion model of Rotach et al. (Q J R Meteorol Soc 122:367–389, 1996). While most of the suggested corrections had already been implemented in the 1990s, one suggested correction raises a valid point, but results in a violation of the well-mixed criterion. Here we improve their idea and test the impact on model results using a well-mixed test and a comparison with wind-tunnel experimental data. The new approach results in similar dispersion patterns as the original approach, while the approach suggested by Gibson and Sailor leads to erroneously reduced concentrations near the ground in convective and especially forced convective conditions. 相似文献
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利用山西省南部暴雨监测试验的实测资料,着重分析了93年8月4日本省中南部出现的较大东暴雨过程的中小尺度作用,揭示了雨团与中惊工云团的活动演特征,中尺度辐合系统的触发作用,气压扰动与降雨的关系及地形影响等方面的特点。加深了对本类过程发生发展的认识。 相似文献
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通过对广西“六·五”末期至“八·五”期间的气象科技成果的系统分析,总结了我区气象科技发展的现状以及指出了今后的发展趋势动向。 相似文献
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Although the "predictability barrier" is a scientific problem brought forward during the middle 1990’s,it has yet to be clearly understood.In this paper,the authors used model results to study the "predictability barrier" of some atmospheric (climatic) systems,including the equatorial Pacific sea surface temperature (SST),East Asia trough (EAT),and South Asia wind field (monsoon).It is shown that the "predictability barrier" appeared not only in predicting the SST in the equatorial Pacific,but also in predicting the atmospheric circulation systems,such as the EAT and the monsoon.The "predictability barrier" for predicting the different climate systems appeared not only in spring,but also in different seasons.It appeared in spring for the equatorial Pacific SST,in summer for the EAT,and in fall and winter for the monsoon.Further analyses showed that the fundamental physical essence of the "predictability barrier" is the seasonal variability characteristics of the atmospheric (climate) system.The "predictability barrier" would occur when the system was at its weakest or worst continuous phase.Furthermore,the models and error patterns also had an important impact on the "predictability barrier";good models and special error patterns can minimize the "predictability barrier". 相似文献
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新的《地面气象观测规范》诞生了,这是我国气象战线上的一件大喜事,也是测报技术上的一次重大变革。新“规范”共分四篇二十章,层次清楚,规定明确。以第三篇为例,本篇共分三章(十六——十八章)十八节,包括月 相似文献
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2007年6月18~22日,在法国Aix—en—Provence召开了由中国国家科技部(MOST)和欧洲航天局(ESA)共同举办的第4届“龙计划”大气遥感学术年会。 相似文献