第31屆氣象年會(huì)s3s5分會(huì)場(chǎng)材料干旱災(zāi)害-11.3上午

近年若干重大干旱事件的監(jiān)測(cè)和形成機(jī)理陸爾、蔡雯悅、劉思源南京信息工程大學(xué)第31屆中國(guó)氣象學(xué)會(huì)年會(huì)北京2014-11-31干旱的逐日監(jiān)測(cè)ChangeRateofFloodExtentLu(2009,GRL)IntegrationUsingdailydataTruncationWeightedAverageofPrecipitation

a=1,SPI,N-scale美國(guó)中部夏季：1988（旱）、1993（澇）、1980-2004（均）

WAP2011長(zhǎng)江春季大旱

Lu&Cai(2013,CD)SeasonalprocessJan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

DailyMonitoringJan17Feb1Feb24Feb25Feb28Mar3Mar10Mar19Mar28Mar31Apr7Apr15DailyMonitoringApr23Apr30May9May21Jun6Jun14DailyMonitoring2011長(zhǎng)江春旱的逐日監(jiān)測(cè)

2011下半年

DetectingExtremesLuetal.(CR,accepted)Discountrates:unitprice,pieces,totalpayment

buyer

sellerEquation“Extreme”Intensity~Duration

integrationHeavyRainfallJuly21,2012BeijingHeavyRainfallJune30–July11,1991Yangtzebasin2干旱的大氣過(guò)程（不同干旱事件的比較）用相對(duì)濕度表征降水的年際變化Changesofq,T,andrbetweenwettestanddriestyearsSignificanceNARR27yrsLu&Takle(JGR2010)ComparisonbetweenChangesofqandTConcurrentInterannualVariationsofqandT-3Patterns(600hPa)

abcWaterVaporFlux(整層)

1999華北夏季大旱

climatemean

anomaly孫穎、丁一匯(2003)WAP(Droughtduring2009-2010)

2009-2010西南秋冬春大旱WaterVaporFlux(850hPa)

2009-2010西南秋冬春大旱

climatemean

anomalyrTqAnomaly(600hPa)DvapDtem600hPaLuetal.(JGR2011)PrecipitationFormingProcesses:HeavyRainandLightRain2011長(zhǎng)江春旱

2011長(zhǎng)江春旱H500

Lu&Liu(JGR2014)(b)300H&Wind

850H&Wind

500T

整層水汽rqTCq、CT600hPa長(zhǎng)江流域CqCT紅：干藍(lán)：濕實(shí)：冷虛：暖

Cq、CT逐日演變長(zhǎng)江流域紅：干藍(lán)：濕實(shí)：冷虛：暖

紅：干藍(lán)：濕實(shí)：冷虛：暖