In this paper a genetic algorithm four-dimension data assimilation system was applied to the more complex MM5 model, we verify the performance of the genetic algorithm assimilation system, we take the a heavy rainfall process during 04-05, July, 2003 as the experimental research object, and carry out data assimilation experiment of actual observation data, compare the experimental results of the genetic algorithm assimilation system and MM5 adjoint model assimilation system with the experimental results without assimilation, the following is the result:genetic algorithm assimilation system is used not only in a barotropic primitive equation but also in the complex model, MM5, for example, in the ideal experiment the result of the genetic algorithm assimilation system is better than the MM5 adjoint model assimilation system, in the assimilation experiment of actual observation data, whichever assimilation system is used, the initial field of numerical prediction model is effectively improved and the prediction effect of physical field and rainfall are somewhat enhanced.

本文將遺傳算法的四維同化系統(tǒng)運(yùn)用到更復(fù)雜的MM5模式中尹人影视，在理想實(shí)驗(yàn)中驗(yàn)證遺傳算法同化系統(tǒng)的性能在线视频欧美激情第7页，并以2003年7月4日"南京暴雨"作為研究對(duì)象18岁以下禁止进入黄色网站，進(jìn)行了實(shí)際觀測(cè)資料的同化人人操在线精品，并將遺傳算法同化系統(tǒng)和MM5伴隨模式同化系統(tǒng)得到的結(jié)果跟未同化的結(jié)果進(jìn)行了比較午夜a一级毛片视频网站在线免费观看，結(jié)果如下：遺傳算法同化系統(tǒng)不僅可以用在正壓原始方程模式上亚洲免费视频在线播放，同樣也可以用在MM5等復(fù)雜模式上，理想實(shí)驗(yàn)證明了遺傳算法同化系統(tǒng)優(yōu)于MM5伴隨同化系統(tǒng)老熟妇伦乱一区二区，在實(shí)際觀測(cè)資料同化中激情性爱国内自拍，采用兩種方法的同化系統(tǒng)都能有效地改善數(shù)值預(yù)報(bào)模式的初始場(chǎng)，能在一定程度上提高物理量場(chǎng)和降水量的預(yù)報(bào)效果免费av黄色录像免费的黄色录像。

The south and north of the windward side of the Annam Cordillera show great difference in the diurnal variation of rainfall, which is related to migration of rainfall. Rainfall over coastal areas of the Thailand Gulf in 01-04LST migrates to inland northeastwards and then heavy rainfall occurs over areas southwest of the Annam Cordillera in 16-19LST, after that heavy rainfall migrates northwestward along the Annam Cordillera to areas northwest of the Annam Cordillera in 01-04LST in the next day. The migration of rainfall results in different characteristics of diurnal variation on the windward side of Annam Cordillera.

長(zhǎng)山山脈西側(cè)迎風(fēng)坡的一南一北兩個(gè)區(qū)域视频一区二区男人的天堂国产大片免费，表現(xiàn)出明顯不同的降水日變化特征，其原因與降水的傳播有關(guān)自拍偷拍亚洲精品。01-04LST一级aa片视频，降水大值區(qū)出現(xiàn)在泰國(guó)灣東部沿海，并向中南半島島內(nèi)傳播国产日韩欧美主播，16-19LST在長(zhǎng)山山脈西南側(cè)形成降水大值區(qū)亚洲欧美国产色图，之后降水進(jìn)一步沿山脈向西北傳播，并于次日01-04LST傳到長(zhǎng)山山脈西北側(cè)區(qū)域99久久播放视频，通過(guò)降水的這種傳播特征從而導(dǎo)致長(zhǎng)山山脈迎風(fēng)坡一側(cè)不同的降水日變化特征日韩三级中文字幕。

The simulated results after the assimilation show that it is the best to perform the intensive radiosonde observation in the upstream of the rainfall area and the moisture passageway area at the same time to improve the heavy rainfall forecast.

從個(gè)例研究結(jié)果來(lái)看，在同化時(shí)間窗都為12小時(shí)的條件下99色免费看视频，使用加密探空觀測(cè)資料進(jìn)行三個(gè)時(shí)刻的數(shù)據(jù)同化形成的初值明顯優(yōu)于同化兩個(gè)時(shí)刻的觀測(cè)資料形成的初值国产精品久久久久精品三级一区。

Based on NCEP and other observational datasets, a severe heavy rainfall process occurred in the south of china during June 18-19,1998 was investigated. The first diagnostic analyses show that the strong rainfall are produced by vortex, shear line and upper and lower jets, stationary front. The condition of high energy, saturation, potential instability is propitious to the form and maintenance of this rainfall.

采用NCEP全球譜模式和常規(guī)觀測(cè)資料對(duì)98年6月18～19日華南暴雨的影響系統(tǒng)及其可能機(jī)制進(jìn)行了初步診斷分析，發(fā)現(xiàn)這次強(qiáng)降水過(guò)程是受低槽无码观看黄三级网站、低渦www熟女、切變線、高免费观看黃色A片一级视频快进、低空急流和地面靜止鋒共同影響造成的免费一级无码婬片AA片高潮喷水，該地區(qū)維持高能、飽和人人干操操操插、潛在不穩(wěn)定的環(huán)境免费在线看欧美三级片，有利于暴雨的產(chǎn)生。

Rainfalls can " deposit " the co2 in air , making it to take part in the process of karst , to dissolve and corrade carbonate rock . co2 concentration in soil become lower after heavy rainfall and become higher after general rainfall .( 8 ) the value of chemical characteristic of soil water in the high elevation area is lower than that in the low elevation area

降雨可以對(duì)coz產(chǎn)生影響九色9se在线视频，&沉淀&大氣中的co ：无码日韩精品一区二区不卡，使其參與到巖溶作用中，溶蝕碳酸鹽巖香蕉在线视频观看；降雨對(duì)土壤空氣中coz的影響與雨強(qiáng)看h片的网站、雨量有關(guān)，降雨量国产精品久久九九免费视频、雨強(qiáng)較大時(shí)免费看的国产区视频，土壤空氣中的c02產(chǎn)生受到抑制，降雨量和雨強(qiáng)較小時(shí)亚洲v欧美v日韩Ⅴ中文字幕，土壤空氣中的coz濃度升高波多野结衣性爱视频。

Observation of radar and intensive surface wind of 0505 typhoon Haitang is used to analyze the relationship between radar reflectivity and observed precipitation and the relationship between mesoscale surface stream field and heavy rainfall. The analysis shows that when the Doppler radar reflectivity reaches 50 dbz, it has a good correspondence to the heavy one hour precipitation. Besides, heavy precipitation is also related to the mesoscale cyclonical current and confluent currents, it occurs near the mesoscale cyclonical or confluent current appearing at the same time.

利用嚴(yán)重影響浙江東南地區(qū)的2005年05號(hào)臺(tái)風(fēng)的雷達(dá)和地面加密風(fēng)場(chǎng)資料2020精品极品国产色在观看，分析對(duì)比臺(tái)風(fēng)中尺度暴雨過(guò)程中雷達(dá)回波與實(shí)況降水、中尺度地面流場(chǎng)與暴雨之間的關(guān)系国产精品免费一区二区久久，結(jié)果得到：多普勒雷達(dá)近地面強(qiáng)回波帶或中心往往達(dá)到50 dbz時(shí)88888888视频欧美，與一小時(shí)的強(qiáng)降水區(qū)有很好的對(duì)應(yīng)關(guān)系，暴雨中心區(qū)也與地面加密的中尺度流場(chǎng)中出現(xiàn)的中尺度氣旋性環(huán)流和匯合氣流有關(guān)国产精品99久久精品2020，強(qiáng)暴雨區(qū)落在同時(shí)刻中尺度渦旋或匯合線附近可观看的黄色网站。

According to the Academia Sinica's recent analysis in an extreme rainfall and global temperature report, the global temperature has increased by about 0.7 degrees in the past 45 years, and Taiwan's heavy rainfall has increased by nearly 100% while minor rainfall and drizzles have decreased by 50%.

根據(jù)中研院日前分析「極端降雨」與「全球溫度」的報(bào)告顯示，過(guò)去45年來(lái)张津瑜落地窗国贸，全球溫度約增加0.7度精品熟女综合网，臺(tái)灣的強(qiáng)降雨也增加近1倍，小雨欧美日韩色一区二区三区视频、毛毛雨則減少50%久久久久精品三级三级。

The function always enhances southerlies and brings heavy rainfall and more latent heating over tropical land to southeast of the Tibet , prevail northerlies , less rainfall and more sensible heating over tropical land to southwest of the Tibet .

結(jié)果表明，青藏高原的&熱力滑輪&作用引起：高原東南面熱帶陸地上空的偏南氣流加強(qiáng)性爱小视频欧美，降水增加国产精品视频网站免丝袜，凝結(jié)潛熱加強(qiáng)；高原西南面熱帶陸地上空出現(xiàn)偏北氣流欧美色色大黑吊视频，降水減弱JIZZ日本国产大陆内射极品，陸面的感熱加熱加強(qiáng)日韩亚洲欧美高清专区。

Results show that the heavy rainfall event occurred under the favorable environmental conditions, resulted from the interaction of mid-and low-latitude systems. The mesoscale convergence and the mesoscale low triggered the occurrence of the heavy rainfall. Rain clusters bringing the heavy rainfall were related to meso-β systems. The meso-β mesoscale rain clusters appeared to the north of the cyclone center on 1000 hPa after filtering and to the south of the meso-α convergence line on 850 hPa.

分析表明：暴雨發(fā)生在高低空流場(chǎng)及中低緯系統(tǒng)配置非常有利的天氣背景下欧洲曰批视频免费看，是多種尺度天氣系統(tǒng)相互作用的結(jié)果；在對(duì)流性不穩(wěn)定層結(jié)中国产成年一级女人侧拍，冷空氣沿等熵面侵入到中尺度輻合系統(tǒng)中免费视频A片一级，激發(fā)了中尺度低渦的迅速發(fā)展，在孟加拉灣和南海源源不斷輸送的水汽配合下女人18毛片一级毛片亚洲，導(dǎo)致了暴雨的發(fā)生亚洲天堂av天堂草；中β尺度對(duì)流雨團(tuán)發(fā)生在濾波后1000 hPa 等壓面的低渦中心北側(cè)和850 hPa 中α尺度輻合線南側(cè)，呈現(xiàn)暖式切變的降雨特征妓女一级AA黄色视频。

The potential vorticity diagnostic system was used to analyze the development of disturbances over rainfall region in order to understand the synoptic situation and dynamical mechanism responsible for the heavy rainfall, which was observed along and over the area to the south of the quasi-stationary Mei-Yu front.

本文選取1987年 TAMEX IOP3期間5月20~22日發(fā)生於華南沿岸地區(qū)的持續(xù)性豪雨事件亚洲中文AⅤ中文字幕每天被，針對(duì)降雨區(qū)的低壓擾動(dòng)進(jìn)行位渦診斷分析，以探討發(fā)生豪雨的環(huán)境特徵與持續(xù)降雨的動(dòng)力機(jī)制国产www黄。