Relationship between the Tibetan Plateau Heating and East Asian Summer Monsoon Rainfall

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Relationship between the Tibetan Plateau Heating and East Asian Summer Monsoon Rainfall. 許晃雄 (Huang-Hsiung Hsu) 劉新 (Xin Liu) 台灣大學大氣科學系 (NTU) 洪志誠 (Chi-Cherng Hong) 台北市立師範學院自然科學教育系 (Taipei Municipal Teachers College) (1 st part: GRL, in press). Major rainfall pattern in EASM - PowerPoint PPT Presentation

Text of Relationship between the Tibetan Plateau Heating and East Asian Summer Monsoon Rainfall

  • Relationship between the Tibetan Plateau Heating and East Asian Summer Monsoon Rainfall(Huang-Hsiung Hsu) (Xin Liu)(NTU)

    (Chi-Cherng Hong)(Taipei Municipal Teachers College)

    (1st part: GRL, in press)

  • Major rainfall pattern in EASM199319942003

    Affecting Taiwan199319942003

    Mechanism SSTPJ pattern correlation ~ 0.3 Tibetan Plateau forcing? ?

  • Heating index&1st PCCorrelation HTP(JJA)Vs. JJA HeaitngCorrelation HTP(MAM)Vs. JJA HeaitngHeating index: vertically-integrated diabatic heating (above 3 Km)

  • Rainfall Composites (strong - weak)1st EOF (JJA precipitation)

  • Vorticity Composites200 hPa500 hPa

  • Patterns reproduced by SVD analysis

  • Numerical experiments: Barotropic modelBasic flow200hPa zonal-mean zonal flow in JJAForcingdivergence over the Tibetan Plateau

  • Basic flow: Climatological mean flow

  • SimulationSame forcingBasic flow (strong HTP) Basic flow (weak HTP)ObservationStrong - Weak

  • SimulationObservation1993 (S) 1994 (W)

  • zonal-mean Uzonal-mean UPV gradientPV gradientstrongweak19931994wave guidewave guide

  • [U] JJA 199319941993 - 1994HTP(S)-HTP(W)

  • JJA []1993 - 199419931994HTP(S)-HTP(W)

  • Corr(Precip.EOF1,SST)JJA

  • Corr.(TPH, Precip)Part. Corr.(TPH, Precip|WNPSST)Corr.(WNPSST, Precip)Part. Corr.(WNPSST, Precip|TPH)

  • Indian Ocean Dipole SST(50~70E, 10S~10N) SST(90~110E, 0~10S)

  • Corr.(TPH, Precip)Part. Corr.(TPH, Precip|Nino3.4)Corr.(Nino3.4, Precip)Part. Corr.(TPH, Precip|TPH)

  • JJA rainfall in Taiwan

    1900

    -61.5997226075

    -75.0425797503

    280.5717059639

    102.2288488211

    -89.0854368932-63.8791511789

    -344.3854368932-125.3131511789

    -136.1997226075-154.6712940361

    -104.4568654646-147.9331511789

    -180.0997226075-113.0392940361

    -160.9425797503-61.6468654646

    21.7288488211-11.2671511789

    338.128848821110.7732773925

    -179.5282940361-7.2711511789

    -15.6854368932-43.1924368932

    -139.4854368932-72.7392940361

    -59.8568654646-80.5547226075

    -170.1282940361-64.8678654646

    1.1574202497-36.2095797503

    62.2859916782-9.3895797503

    -4.21400832183.0509916782

    -24.29972260750.1675631068

    111.5717059639-20.7297226075

    -158.6425797503-57.3901511789

    -2.5282940361-91.2042940361

    -213.9425797503-101.2184368932

    -253.8140083218-72.4427226075

    -25.6997226075-13.2467226075

    353.071705963939.7761345354

    52.814563106857.4769916782

    -148.842579750345.9997059639

    156.000277392522.4521345354

    85.7145631068-3.3500083218

    -113.5997226075-16.8198654646

    -319.22829403612.2052773925

    349.671705963945.8914202497

    11.185991678279.5918488211

    282.085991678285.0048488211

    -43.828294036162.4728488211

    -29.399722607536.7059916782

    41.528848821132.7982773925

    42.100277392549.8739916782

    -26.771151178979.8724202497

    260.2002773925109.8925631068

    153.7002773925126.8498488211

    80.7859916782129.1358488211

    27.8859916782125.6567059639

    413.5574202497116.4575631068

    -156.7425797503100.7964202497

    133.371705963988.9179916782

    104.957420249777.0587059639

    174.128848821161.0602773925

    -119.514008321850.8691345354

    51.700277392551.6311345354

    -2.214008321857.8042773925

    378.428848821150.2474202497

    -196.514008321824.9178488211

    50.58599167826.4611345354

    -205.21400832186.9328488211

    139.085991678216.8301345354

    282.54313453543.6112773925

    -196.9140083218-45.5110083218

    -112.7282940361-96.7371511789

    -277.9140083218-118.6452940361

    -114.8854368932-99.6800083218

    -5.6140083218-57.2332940361

    54.2859916782-22.9964368932

    -35.2140083218-12.9545797503

    39.2145631068-25.3548654646

    -54.5854368932-43.1798654646

    -102.6711511789-43.1758654646

    -232.2425797503-7.3147226075

    204.143134535457.4681345354

    184.1431345354116.1849916782

    163.8574202497146.3799916782

    278.0717059639142.3162773925

    -81.5140083218112.6339916782

    264.614563106870.5571345354

    -69.614008321817.7935631068

    85.5431345354-37.0624368932

    -317.4854368932-77.6831511789

    -51.8568654646-84.1422940361

    -59.9997226075-56.5070083218

    -140.8854368932-11.9764368932

    195.843134535425.2569916782

    148.385991678225.7537059639

    3.8145631068-10.7605797503

    -208.7997226075-52.7884368932

    -29.5568654646-74.4307226075

    -283.1854368932-69.6868654646

    225.5859916782-51.6030083218

    -101.4711511789-41.4608654646

    -77.2282940361-39.6882940361

    -150.8854368932-36.0881511789

    194.8002773925-28.1442940361

    -86.4997226075-18.0228654646

    -234.87115117894.9628488211

    246.257420249739.8812773925

    53.743134535460.8155631068

    149.557420249753.8212773925

    39.3859916782

    -76.2282940361

    -159.9140083218

    -49.7568654646

    2004

    2005

    &A

    Page &P

    7()1901-20036-8

    558.857 mm170.746 mm

    (mm)

    1901-2003

    \6-8\6786-8(EXCEL)9

    1900

    1901176.3428571429157.3428571429320.9142857143497.2571428571-61.59972260753794.52582531961901

    1902414.7571428571184.828571428669.0571428571483.8142857143-75.04257975035631.38877558711902

    1903394.6285714286140.8857142857444.8839.4285714286280.571705963978720.48218751521903

    1904481.5714285714606.1142857143179.5142857143661.0857142857102.228848821110450.73753128371904

    1905346.6270.0142857143123.1714285714469.7714285714-89.08543689327936.21506645331.4145631068-63.87915117891905

    190695.5142857143425.8714285714118.9571428571214.4714285714-344.3854368932118601.329144123-25.1425797503-125.31315117891906

    1907337.0571428571132.157142857185.6422.6571428571-136.199722607518550.364438357-37.3740083218-154.67129403611907

    1908176.1571428571315.0142857143278.2428571429454.4-104.456865464610911.2367426963-114.3797226075-147.93315117891908

    1909149.9857142857176.6142857143228.7714285714378.7571428571-180.099722607532435.9100832946-170.8454368932-113.03929403611909

    191077.9285714286232.7142857143319.9857142857397.9142857143-160.942579750325902.5139766966-185.2168654646-61.64686546461910

    191186.1857142857296.6142857143494.4580.585714285721.7288488211472.1428710894-111.9940083218-11.26715117891911

    1912549.9571428571146.1347.0285714286896.9857142857338.1288488211114331.11840507-17.128294036110.77327739251912

    1913229.6857142857557.6149.6428571429379.3285714286-179.528294036132230.4083594983-32.1425797503-7.27115117891913

    1914212.9428571429433.0142857143330.2285714286543.1714285714-15.6854368932246.03293053070.7402773925-43.19243689321914

    1915124.2203.5142857143295.1714285714419.3714285714-139.485436893219456.18710528795.0317059639-72.73929403611915

    1916191.171428571472.8571428571307.8285714286499-59.85686546463582.8443432511-11.2854368932-80.55472260751916

    1917217650.7714285714171.7285714286388.7285714286-170.128294036128943.6364316204-112.9368654646-64.86786546461917

    1918207.8142857143465.9352.2560.01428571431.15742024971.3396216343-76.7997226075-36.20957975031918

    1919203.785714285796.7571428571417.3571428571621.142857142962.28599167823879.5447593399-61.2054368932-9.38957975031919

    1920299.9502254.7428571429554.6428571429-4.214008321817.757866136-34.15115117893.05099167821920

    1921288.7857142857220.5857142857245.7714285714534.5571428571-24.2997226075590.4765188009-27.03972260750.16756310681921

    1922221.5285714286185.1285714286448.9670.4285714286111.571705963912448.245571703729.3002773925-20.72972260751922

    1923205.9142857143182.5142857143194.3400.2142857143-158.642579750325167.468109845-2.6597226075-57.39015117891923

    1924363309.0285714286193.3285714286556.3285714286-2.52829403616.3922707328-15.6225797503-91.20429403611924

    1925204.3142857143356.7142857143140.6344.9142857143-213.942579750345771.4274302334-57.5682940361-101.21843689321925

    1926178.8200.5142857143126.2428571429305.0428571429-253.814008321864421.5508203661-103.4711511789-72.44272260751926

    1927304.4285714286521.8428571429228.7285714286533.1571428571-25.6997226075660.4757421019-130.9254368932-13.24672260751927

    1928399.6857142857124.9142857143512.2428571429911.9285714286353.0717059639124659.629552286-28.582579750339.77613453541928

    1929264.5285714286592.4857142857347.1428571429611.671428571452.81456310682789.3780761618-17.514008321857.47699167821929

    1930225.7612.7184.3142857143410.0142857143-148.842579750322154.1135467382-4.494008321845.99970596391930

    1931276.0714285714223.2571428571438.7857142857714.8571428571156.000277392524336.086546540377.468848821122.45213453541931

    1932282.1571428571252.1571428571362.4142857143644.571428571485.71456310687346.98632858999.7517059639-3.35000832181932

    1933428.0142857143304.128571428617.2428571429445.2571428571-113.599722607512904.89697649856.4174202497-16.81986546461933

    1934136.3857142857583.2428571429103.2428571429239.6285714286-319.2282940361101906.703713174-67.99115117892.20527739251934

    1935312.5571428571591.1142857143595.9714285714908.5285714286349.6717059639122270.30195173231.711705963945.89142024971935

    1936286.9857142857165.9714285714283.0571428571570.042857142911.1859916782125.12640982532.748848821179.59184882111936

    1937315.1428571429196.3285714286525.8840.9428571429282.085991678279572.506701087642.023134535485.00484882111937

    193866.8142857143305.3857142857448.2142857143515.0285714286-43.82829403611920.919358111455.977420249762.47284882111938

    1939398.8142857143986.7571428571130.6428571429529.4571428571-29.3997226075864.3436893973113.943134535436.7059916782193