內(nèi)蒙古夏季干旱分析研究.pdf

1、蘭州大學碩士學位論文內(nèi)蒙古夏季干旱分析研究姓名：宋桂英申請學位級別：碩士專業(yè)：大氣科學指導教師：徐祥德王文20060527AridnessAnaIysisinInnerMongoliaAutonomousinSummerAbstractAridnessandtrarlsdesertaretwoconnectedworldwideproblemsItjSalso血emostfrequentoritffiuentialealamityona

2、gricultureandanimalhusbandryinInnerMongoliaThethesisadoptstheInnerMongolia’Srulemeteorologicaidata、therepresentativestationssoilhumidityataperiodof10days、meteorologicalcalamityindexandtheNCEPdataf1961～2000)Thearticlehasr

3、esearchedinthecharactersandthecausesofthearidnessbyadoptingseveralclimaticmethods，thendonesomesimulation、forecastexperimentswithmodelRegCM2Theconclusion：ThereasonoftheInnerMongoliaAutonomous’aridnessisverycomplexIthassom

4、emaincharactersfollowingLackingseriouslyoftheprecipitationbringsabouttheInnerMongoliasaridness①ThebarrensollbeingshortofwateriStheotherimportantcause②Thennasualatmospherecirculationandthefailedmoisturetransportationareth

5、emeteorologicalreasontotheInnerMongolia’SaridnesstooTheprecipitationofinnerMongoliacomesfromthewatercycleof“bigtrianglefanmodel”ThemoisturetransportstotheChangRiverareaortumstotheloessplateauSedgeafterpassingthroughthe‘‘

6、bigtrianglefanmodel”O(jiān)nlysomepartsofitgoforwardthenreachtheInnerMongolia③TheprecipitationinwestInnerMongoliaissensibleofthemoistureflowingoutoftheeastAsiaS‘‘bigtrianglefanmodel”Goingthroughthe“bigtrianglefanmodel”themoist

7、ureRlrnsaverycomerTheprobabilityofthewaterVaDortransportingtothenorthChinaisweakerItaffectst11earidnessorwaterloginInnerMongoliaTheprecipitationdeviationfromtheaverageinwestInnerMongoliaishighlyminusrelatedtotheearlierst

8、ageSairhumidity、VwindandQVoftheloessplateau，thoughhj吐lyplusrelatedtothetemperatureofthatarea④FortheeastInnerMongolia，themoisturecenterfromPhilippinestosouthChinaseaiSthehighlyrelatedareatoitSprecipitationinsummer⑤WjthReg

9、CM2，thesimulatedoutcomeforonemonthrangeisidenticalwiththeactualaircirculationandmeteorologicalenvironmentItSforecastaircycleinclinesaliRleto血eeastItSforecastprecipitationiS1essTheRegCM2iSsuitableforamonthrangeSsimulating