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《中国气象科学研究院年报》2000,(1)
CaoHongxing.Memorialdynamicsoftheatmosphereanditsnonlinearfeature.ProceedingsofIet'lConferenceonAppliedComputationalFluidDynamics.Beijing.China.Oct.591-698.ChaeNamyi,GaoZhiqiu.KimJoon.TestingtheenergybudgetclosureinTibetanPrairieusingtheversion2oftheSimpleBiosphereModel2(SiB2).2000WesternPacificGeophysicsMeeting.Tokyo,Japan.ChenJuying,WangHongyu,XiongMinquan.Studyonchangedcharacteristicsandcausesofprecipitationandfloods/drought.The4thConferenceonEastAsiaandWesternPacificMeteor… 相似文献
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《大气科学》2005,29(1):1-6
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… 相似文献
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1.IntroductionManyobservationsshowthatNorthChina,especiallythePlainofNorthChina,isoneofthemostseveredroughtareasinChina.Thedroughtdisastersoccurwithahighfrequencyandawiderange,andsustainalongtime.Moreover,thehightemperatureusuallyaccomPaniesthedroughtinthecorresPOndingPeriod.Thesummerrainfallin1997islessthanhalfofnormal.Itisthemostseveredroughtdisasterduringrecentdecades.Theregionalclimateanomaliesarenodoubtinfluencedbytheglobalclimatechange.However,manyrecentobservationsandnumericalstud… 相似文献
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《大气科学进展》2017,(2)
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 相似文献
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1INTRODUCTIONEversincethe1940抯,thetropicalcyclone(TC)hasbeenviewedasapointvortexorrigidvortex.Thepredictionissummedupasoneforairflowintheambientfield.Themethodusuallysucceeds.Thesteeringtheoryfortheairflowbecomesitstheoreticalfoundation.Thoughwithsomesuccess,theactualtrackofTCmovementcanbemuchdeviatedfromthesteeringcurrent,asseeninroutineforecastpractice.Withoutmuchchangesintheambientsteeringcurrent,theTCcanhaveunexpectedchangesinthedirection,speedofmotionorintensity.Atypicalexamplewo… 相似文献
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1.IntroductionWeatherforecastingmodelisasetofpartialdifferentialequations(PDE).Itshouldsatisfycertaininitial--boundaryconditions.Clearly,oneofthemostimportantimprovementsinweatherforecastingmodelistooptimizeitsinitialandboundaryconditions.Forthesimplicityofdiscussion,wemightregardthespatialboundaryconditionasakindofinitialconditioninspatialdimension.Aneffectivedataassimilationprocedureisrequiredinordertoutilizewidelycollectivedatafortheweatherforecastingmodelandfindanoptimalinitialcondition.… 相似文献
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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。 相似文献
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Foreign Members 《Acta Meteorologica Sinica》1988,2(3):404-409
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 相似文献
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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
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l.IntroductionWithhighlydevelopingofmodernscientifictechnologyandincessantupdatingoftheobservationalsystem,manykindsofnewsourcesofobservationaldataarereadilyobtained,suchassatellitedataandradardata.Ithasbeenacriticalproblemtopuzzleresearcherstoeffectivelyemploythesedatainnumericalcalculation.4DVARtechniquehasgraduallybeenaveryimportanttoolinthemainstreamofnumericalweatherprediction,becauseitisofstrongcapabilityofcombiningandextractingtheusefulinformationfromallkindsofobservationaldata.Thedat… 相似文献
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《中国气象科学研究院年报》2000,(1)
In2000,atotalof130scientistsorgovernmentofofficialsfrom18countries,suchastheUnitedStates,Australia,Canada,Israel,etc.,visitedtheChineseAcademyofMeteorologicalSciences(CAMS).Inthemeantime,CAMSsentout55professionalsto21countriessuchastheUnitedStates,Japan,Russia,Korean,etc.forinternationalmeetingorvariousacademicactivities.TheseactivitiesfacilitatedgreatlytheresearchesofCAMS.OnJune7,CAMSinvitedProf.ZhangDalinoftheUniversityofMarylandtoworktemporarilyattheacademy.Prof.Zhangpresente… 相似文献
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Calculation of solar albedo and radiation equilibrium over the Qinghai-Xizang Plateau and analysis of their climatic features 总被引:1,自引:0,他引:1
1.IntroductionTopreciselyestimatethevaluesofalbedosatsurfaceandatmospherictop.surfacetotalradiationandearth--atmosphereoutgoinglongwaveradiationiscrucialtocalculatingradiationbalanceatsurfaceandatmospherictopandexploringoftheeffectoftheQXPatmosphericheatsourcesonatmosphericcirculations.Using1958--1960observationsofsurfacetotalradiation,albedoandsurfacemeteorologicalobservationsoverChina.ChenandGongetal.(1964.1965)investigated,throughanatmosphericradiationcalculationscheme.thedistributionchar… 相似文献
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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. 相似文献
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The study on the interannual variation and the mechanism of the south china sea monsoon 总被引:1,自引:0,他引:1
l.Intr0ductionTheonset0ftheSouthChinaSea(SCS)monsoonisasignofthecomingoftheAsianmonsoon.Inaverage,theonsetoftheSCSmonsoonisinthemiddleofMay,butitsstrengthandtheonsetdatediffergreatlyfromoneyeartoanother.TheanomaliesoftheSCSmon-soonhighlydePendonnotonIytheprecipitationinSCS,butalsotheanomaliesofthecircu-lationintheworld.WhyisthemonsoononsetearliestinSCS?Whatisthemechanismoftheonsetanditsvariation?Thisisascientificproblemthatisinterestedinbymeteorologistsbothathomeandabroad.TaoandChen… 相似文献
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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。 相似文献
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Main features of regional circulation variation during onset of the south china sea monsoon in 1998 总被引:4,自引:0,他引:4
1.IntroductionTheAsiansummermonsoonconsistsoftwosystems,i.e.,theSouthAsianmonsoonandtheEastAsianmonsoon.TheSouthChinaSea(SCS)monsoonisoneoftheimportantsubsystemsoftheEastAsianmonsoon.IthaslongbeenconcernedabouttherelationshipoftheSCSmonsoonwithchangesofthegeneralcirculationandweatherpatternsinadjacentregions.TaoandChen(1987)suggestedthattheonsetoftheAsiansummermonsoonstartsfirstinthenorthernSCSusuallyinmid--May,thenpropagatesnorthwardtothemainlandofChinaandthewesternPacificsouthofJap… 相似文献