近50a來(lái)長(zhǎng)江流域氣象因素分析及蒸發(fā)變化原因初探.pdf_第1頁(yè)
已閱讀1頁(yè)，還剩113頁(yè)未讀， 繼續(xù)免費(fèi)閱讀

下載本文檔

版權(quán)說(shuō)明：本文檔由用戶提供并上傳，收益歸屬內(nèi)容提供方，若內(nèi)容存在侵權(quán)，請(qǐng)進(jìn)行舉報(bào)或認(rèn)領(lǐng)

文檔簡(jiǎn)介

1、V28197分類號(hào)P33學(xué)號(hào)0430101001薪級(jí)玉一一河浮夫萼碩士學(xué)位論文近50a來(lái)長(zhǎng)江流域氣象因素分析及蒸發(fā)變化原因初探陳吉琴指導(dǎo)教師姓名一一型握純熬控一(埴昱2一星盤(pán)盍堂盛童盛量遵生瞳碰立直酉崖壁!量申請(qǐng)學(xué)位級(jí)別三堂亟一生一一一學(xué)科領(lǐng)域盔奎生叢盛童握論文提交日期2QQZ生目論文答辯甘涮：2壁壘Z生垂且3目學(xué)位授予單位和H瑚：缸盎厶堂2QQ2笙墨目答辯委員會(huì)主席：奎盎友論文評(píng)閱人：睦塞置一、至匿差2007年6月中國(guó)南京Abs仃ac

2、tWaterisalwaysmovmgingeographicalenvironmentEachkindofwaterbodyisunceasinglYcirculatingandtransformin島fromonestateintoanotherstateItmakesimportantlytheoryandpracticesensetoresearchevaporationinbasinbecauseevaporationisth

3、emostimportantlinkinwatercycleThereportofIPCCindicatedthattheairtemperaturehasgoneupby04～08℃，duringthepast100yearsinthe20centuryreachingthehighestvalueintherecent1000yearsItiSconsideredthatevaporationwillincreaseasaresul

4、toftheternperatureriseButonthecontraryduringthepasthalfcenturypanevaporationmeasuredbypanevatorimetershasdecreasedoversomeareasThedeclineinpanevaporationisatoddswiththeexpectationthatglobalwanningcausedbyincreasingemissi

5、onofgreenhousegaseswouldineasepotentialevaporationWhatisthereasonofthephenomenaItisveryimportantforthemeteorologistsandhydrologlsttesolvethemUnderthebackground，basedonthedailyobservationdataofmeteorologicalelements(panev

6、aporation，themaximumairtemperature，themeanairtemperature，theminimumairtemperature，thegroundtemperature，therelativehumiditythecloud，thewindspeed，thesunlighttime，theaverageatmosphericpressandtheaveragevaporpress)from115sta

7、tionsinChangjiangRiverBasinfrom1951～2000，CharactefistiesofthetrendsofClimateinChangjiangRiverBasinarestatisticallyinvestigatedbycalculatingclimatetendencywithleastsquaremethodandtherelationsbetweenpanevaporationandkindso

8、fmeteorologicalelementsarealsoanalyzedTheseresultsshowtllatforrecent50yearsinChangiiangRiverBasin：(1)CharacteristicsofSpatial—TemporalVariabilityofkindsofmeteorologicalelementsareanalyzedinsubareasinChangiiangRiverBasin(

9、2)ThereferenceevapotranspirationisestimatedwithstandardFAOPenman—MonteithmethodTheresultiSsatisfiedbycomparingitwiththeobservationdatathoughcalculatingcoefficient；Also，itwasfoundthatkmisaffectedbythesiteofwatertopography

10、timeandregionalenvironment，anddTdwisrelatingtogeographicalenvironment，suchastopographyaltitudeandmeteoroloIgicalelementssuchaswindspeed，precipitation(3)Thepanevaporationhasdeclinedin4subareasinChan舀iangRiverBasinofthe4su

11、bareas，ithasdeclinedsignificantlyinthemidriVeL(4)ThemostpossiblereasonthatcausesthedeclineofpanevaporationinSGistheaverageVaDorpressThemostpossiblereasonsthatCaUSethedeclineofpanevaporationinSPisthegroundtemperatureandth

12、esunli【ghttime11lemostpossiblereasonthatcausesthedeclineofpanevaporationinmidriveranddownriveristhesunlighttimeKeywords：theChangjiangRiverBasin；climatewarming；PotentialEvaporation；Spatial—TemporalVariability；PenmanMontei

溫馨提示

  • 1. 本站所有資源如無(wú)特殊說(shuō)明，都需要本地電腦安裝OFFICE2007和PDF閱讀器。圖紙軟件為CAD,CAXA,PROE,UG,SolidWorks等.壓縮文件請(qǐng)下載最新的WinRAR軟件解壓。
  • 2. 本站的文檔不包含任何第三方提供的附件圖紙等，如果需要附件，請(qǐng)聯(lián)系上傳者。文件的所有權(quán)益歸上傳用戶所有。
  • 3. 本站RAR壓縮包中若帶圖紙，網(wǎng)頁(yè)內(nèi)容里面會(huì)有圖紙預(yù)覽，若沒(méi)有圖紙預(yù)覽就沒(méi)有圖紙。
  • 4. 未經(jīng)權(quán)益所有人同意不得將文件中的內(nèi)容挪作商業(yè)或盈利用途。
  • 5. 眾賞文庫(kù)僅提供信息存儲(chǔ)空間，僅對(duì)用戶上傳內(nèi)容的表現(xiàn)方式做保護(hù)處理，對(duì)用戶上傳分享的文檔內(nèi)容本身不做任何修改或編輯，并不能對(duì)任何下載內(nèi)容負(fù)責(zé)。
  • 6. 下載文件中如有侵權(quán)或不適當(dāng)內(nèi)容，請(qǐng)與我們聯(lián)系，我們立即糾正。
  • 7. 本站不保證下載資源的準(zhǔn)確性、安全性和完整性, 同時(shí)也不承擔(dān)用戶因使用這些下載資源對(duì)自己和他人造成任何形式的傷害或損失。

評(píng)論

0/150

提交評(píng)論