Publications In English

CaoHongxing.Memorialdynamicsoftheatmosphereanditsnonlinearfeature.ProceedingsofIet'lConferenceonAppliedComputationalFluidDynamics.Beijing.China.Oct.591-698.ChaeNamyi,GaoZhiqiu.KimJoon.TestingtheenergybudgetclosureinTibetanPrairieusingtheversion2oftheSimpleBiosphereModel2(SiB2).2000WesternPacificGeophysicsMeeting.Tokyo,Japan.ChenJuying,WangHongyu,XiongMinquan.Studyonchangedcharacteristicsandcausesofprecipitationandfloods/drought.The4thConferenceonEastAsiaandWesternPacificMeteor…     

叶笃正科学著作目录

194 9YehT .Onenergydispersionintheatmosphere .J .Meteor .,6 :1～ 16195 0RiehlH ,YehT ,LaeeurNE .Astudyofvariationsofgeneralcirculation .J .Meteor.,7:181～ 194YehT .Onthemotionoftropicalstormsundertheinfluenceofasuper imposedsoutherlycurrent.J .Meteor.,7:10 8～ 113RiehlH ,YehT .Somecommentsonthetrade windcell.Quart.J .Roy .Meteor .Soc .,76 :340～ 342YehT .ThecirculationofhightroposphereoverChinainwinterof 194 5 4 6 .Tellus ,2 :173～ 183RiehlH ,YehT .Theintensityofthenetmeridional…     

Numerical experiments for the influence of the transition zone migration on summer climate in north china

1.IntroductionManyobservationsshowthatNorthChina,especiallythePlainofNorthChina,isoneofthemostseveredroughtareasinChina.Thedroughtdisastersoccurwithahighfrequencyandawiderange,andsustainalongtime.Moreover,thehightemperatureusuallyaccomPaniesthedroughtinthecorresPOndingPeriod.Thesummerrainfallin1997islessthanhalfofnormal.Itisthemostseveredroughtdisasterduringrecentdecades.Theregionalclimateanomaliesarenodoubtinfluencedbytheglobalclimatechange.However,manyrecentobservationsandnumericalstud…     

Advances in Atmospheric Sciences Special Issue:Aerosols,Clouds,Radiation,Precipitation,and Their Interactions Call for papers

正Lead Editor:Xiquan Dong(University of North Dakota,USA),dong@aero.und.edu Guest Editors:Christine Chiu(University of Reading,UK),c.j.chiu@reading.ac.uk Jiwen Fan(Pacific Northwest National Laboratory,USA),Jiwen.Fan@pnnl.gov Yangang Liu(Brookhaven National Laboratory,USA),lyg@bnl.gov Teruyuki Nakajima(Japan Aerospace Exploration Agency,Japan),teruyuki.nakajima@aori.u-tokyo.ac.jp Byung-Ju Sohn(Seoul National University,Korea),sohn@snu.ac.kr     

NUMERICAL SIMULATIONS OF β-GYRES IN TROPICAL CYCLONES

1INTRODUCTIONEversincethe1940抯,thetropicalcyclone(TC)hasbeenviewedasapointvortexorrigidvortex.Thepredictionissummedupasoneforairflowintheambientfield.Themethodusuallysucceeds.Thesteeringtheoryfortheairflowbecomesitstheoreticalfoundation.Thoughwithsomesuccess,theactualtrackofTCmovementcanbemuchdeviatedfromthesteeringcurrent,asseeninroutineforecastpractice.Withoutmuchchangesintheambientsteeringcurrent,theTCcanhaveunexpectedchangesinthedirection,speedofmotionorintensity.Atypicalexamplewo…     

国外新书刊

美国气象学会于1974年3月编印了美国《天气分析与预报第五次会议》(FIFTH CON-FERENCE ON WEATHER FORECASTING AND ANALYSIS)文集的预印本,内容共11部分:1.未来的天气系统,2.天气预报的公式化、表达方式、传送和使用,3.卫星气象学和接收装置,4.降水和云,5.中尺度预报和分析,6.天气尺度预报和分析,7.大气污染和城市影响,8.天气学资料的应用与缺陷,9.云幕和能见度,10.边界层现象,11.对流活动。     

黄土高原260万年以来东亚夏季风演变信号研究

在研究黄土高原东亚季风地质时期周期演变中,引入了用于定量检测周期的奇异谱分析方法,结合小波分析,对典型的黄土高原陕西省洛川黄土剖面、甘肃省灵台黄土剖面的磁化率中2.6 MaB.P.以来东亚季风的强信号进行了研究。结果表明:2.6-1.0 MaB.P.之间地质时期,除在1.87-1.37 MaB.P.之间可能存在一个周期演变不明显的缺失时段外,东亚季风演变的主导周期是40 ka,0.9-0.6 MaB.P.是40 ka周期和100 ka周期的调整过渡期。0.6 MaB.P.以来的主导周期是100ka。研究还发现,1.2 MaB.P.前后没有明显的周期差异,说明1.2 MaB.P.不是一次真正意义上的周期转型事件,而是周期演变过程中的触发事件,这一触发事件对0.9 MaB.P.以后出现的周期转型事件影响深刻。40 ka周期从1.2 MaB.P.开始衰减,至0.9MaB.P.时100 ka周期逐渐建立。0.6 MaB.P.开始东亚季风出现冷暖大幅振荡的100 ka演变周期,因而0.6MaB.P.具有气候振荡加剧的突变性质。     

Application of variational algorithms in semi- lagrangian framework

1.IntroductionWeatherforecastingmodelisasetofpartialdifferentialequations(PDE).Itshouldsatisfycertaininitial--boundaryconditions.Clearly,oneofthemostimportantimprovementsinweatherforecastingmodelistooptimizeitsinitialandboundaryconditions.Forthesimplicityofdiscussion,wemightregardthespatialboundaryconditionasakindofinitialconditioninspatialdimension.Aneffectivedataassimilationprocedureisrequiredinordertoutilizewidelycollectivedatafortheweatherforecastingmodelandfindanoptimalinitialcondition.…     

A simple method of calculating the optimal step size in 4DVAR technique

l.IntroductionWithhighlydevelopingofmodernscientifictechnologyandincessantupdatingoftheobservationalsystem,manykindsofnewsourcesofobservationaldataarereadilyobtained,suchassatellitedataandradardata.Ithasbeenacriticalproblemtopuzzleresearcherstoeffectivelyemploythesedatainnumericalcalculation.4DVARtechniquehasgraduallybeenaveryimportanttoolinthemainstreamofnumericalweatherprediction,becauseitisofstrongcapabilityofcombiningandextractingtheusefulinformationfromallkindsofobservationaldata.Thedat…     

ABOUT MEMBERS OF OUR EDITORIAL COMMITTEE

Foreign MembersRichard A.Anthes(Office of the Director,NCAR,P.O.Box 3000,Boulder,CO 80307-3000,USA)In 1971,he received his Ph.D.in meteorology from the University of Wisconsin witha Ph.D.thesis on the energetics of hurricanes.In 1981,Dr.Anthes accepted a posi-tion as Director of the Atmospheric Analysis and Prediction Division at NCAR.His re-search interests there were the development of mesoscale numerical models and their use to     

linux使用cdrtools光盘刻录程序

在redhatlinux 7.2试验环境下 ,运行cdrtools软件 ,可进行光盘刻录。cdrecord的 2 .0版本叫作cdrtools- 2 .0 ,该程序可让你用CD刻录机制作各种类型的CD ,软件驱动可从ftp ://ftp .berlios.de/pub/cdrecord/和http ://freshmeat.net/projects/cdrecord/网址下载。下载源代码压缩包后 ,运行 # gzip -d 相似文献   

International Cooperation and Exchange

In2000,atotalof130scientistsorgovernmentofofficialsfrom18countries,suchastheUnitedStates,Australia,Canada,Israel,etc.,visitedtheChineseAcademyofMeteorologicalSciences(CAMS).Inthemeantime,CAMSsentout55professionalsto21countriessuchastheUnitedStates,Japan,Russia,Korean,etc.forinternationalmeetingorvariousacademicactivities.TheseactivitiesfacilitatedgreatlytheresearchesofCAMS.OnJune7,CAMSinvitedProf.ZhangDalinoftheUniversityofMarylandtoworktemporarilyattheacademy.Prof.Zhangpresente…     

Calculation of solar albedo and radiation equilibrium over the Qinghai-Xizang Plateau and analysis of their climatic features

1.IntroductionTopreciselyestimatethevaluesofalbedosatsurfaceandatmospherictop.surfacetotalradiationandearth--atmosphereoutgoinglongwaveradiationiscrucialtocalculatingradiationbalanceatsurfaceandatmospherictopandexploringoftheeffectoftheQXPatmosphericheatsourcesonatmosphericcirculations.Using1958--1960observationsofsurfacetotalradiation,albedoandsurfacemeteorologicalobservationsoverChina.ChenandGongetal.(1964.1965)investigated,throughanatmosphericradiationcalculationscheme.thedistributionchar…     

What Do the Cited and Citing Environments Reveal about Advances in Atmospheric Physics

The networking status of journals reflects their academic influence among peer journals. This paper analyzes the cited and citing environments of this journal, Advances in Atmospheric Sciences (Adv. Atmos. Sci.), using methods from social network analysis. Since its initial publication, Adv. Atmos. Sci. has been actively participating in the international journal environment and international journals are frequently cited in Adv. Atmos. Sci. Particularly, this journal is intensely interrelated with its international peer journals in terms of their similar citing patterns. The international influence of Adv. Atmos. Sci. is comparatively bigger than other Chinese SCI journals in atmospheric sciences as reffected by total cites to Adv. Atmos. Sci. and the total number of international journals citing it. The academic visibility of Adv. Atmos. Sci. is continuing to improve in the international research community as the number of reference citation it receives in its peer journals internationally increases over time.     

(八)A.I.D.方法的一般理论

第七讲的方法,如果不是用极差进行分割,而是用变差进行分割,就成为一般书上所说的A.I.D.方法(筛选因子的一个新方法)。实际上,A.I.D.方法仅仅是最优分割法的一种灵活运用。为了能比较清楚地说明这一点,我们就依照一般书上的写法来介绍A.I.D.方法,然后,再说明它与最优分割法的关系。     

The study on the interannual variation and the mechanism of the south china sea monsoon

l.Intr0ductionTheonset0ftheSouthChinaSea(SCS)monsoonisasignofthecomingoftheAsianmonsoon.Inaverage,theonsetoftheSCSmonsoonisinthemiddleofMay,butitsstrengthandtheonsetdatediffergreatlyfromoneyeartoanother.TheanomaliesoftheSCSmon-soonhighlydePendonnotonIytheprecipitationinSCS,butalsotheanomaliesofthecircu-lationintheworld.WhyisthemonsoononsetearliestinSCS?Whatisthemechanismoftheonsetanditsvariation?Thisisascientificproblemthatisinterestedinbymeteorologistsbothathomeandabroad.TaoandChen…     

拉格朗日法在数值天气预报中的应用(一)

序 1921年,理查森(L.F.Richadson)的专著“数值方法的天气预报”问世,文中给出了对控制大气运动的流体动力学方程组进行数值积分的方法,由于条件的限制,他计算失败了.时至1950年,查尼(J.Charney)、菲耶托夫特(R.Fjortoft)和纽曼(J.von Neumann)在罗斯贝(C.G.Rossby)早期工作的基础上,首次做出了成功的数值预报.自此,