• Akter, N., , and K. Tsuboki, 2012: Numerical simulation of Cyclone Sidr using a cloud-resolving model: Characteristics and formation process of an outer rainband. Mon. Wea. Rev., 140, 789810, doi:10.1175/2011MWR3643.1.

    • Search Google Scholar
    • Export Citation
  • Anthes, R. A., 1982: Tropical Cyclones: Their Evolution, Structure and Effects. Amer. Meteor. Soc., 208 pp.

  • Braak, C., 1921: Het Klimaat van Nederlandsch-Indië. Deel I: Algemeene Hoofdstukken, Verh. Magn. Meteor. Obs. Batavia, Indones., No. 8, Javasche Boekhandel & Drukkerij, 787 pp.

  • Braak, C., 1929: Het Klimaat van Nederlandsch-Indië. Deel II: Local Klimatologie, Verh. Magn. Meteor. Obs. Batavia, Indones., No. 8, Javasche Boekhandel & Drukkerij, 802 pp.

  • Carrera, M. L., , and J. R. Gyakum, 2003: Significant events of interhemispheric atmospheric mass exchange: Composite structure and evolution. J. Climate, 16, 40614078, doi:10.1175/1520-0442(2003)016<4061:SEOIAM>2.0.CO;2.

    • Search Google Scholar
    • Export Citation
  • Carrera, M. L., , and J. R. Gyakum, 2007: Southeast Asian pressure surges and significant events of atmospheric mass loss from the Northern Hemisphere, and a case study analysis. J. Climate, 20, 46784701, doi:10.1175/JCLI4266.1.

    • Search Google Scholar
    • Export Citation
  • Chambers, C. R. S., , and T. Li, 2007: Simulation of a near-equatorial typhoon Vamei (2001). Meteor. Atmos. Phys., 98, 6780, doi:10.1007/s00703-006-0229-0.

    • Search Google Scholar
    • Export Citation
  • Chan, J. C. L., , and C. Y. Li, 2004: The East Asian winter monsoon. East Asian Monsoon, C.-P. Chang, Ed., World Scientific Series on Asia-Pacific Weather and Climate, Vol. 2, World Scientific, 54–106.

    • Search Google Scholar
    • Export Citation
  • Chang, C.-P., 1977: Viscous internal gravity waves and low-frequency oscillations in the tropics. J. Atmos. Sci., 34, 901912, doi:10.1175/1520-0469(1977)034<0901:VIGWAL>2.0.CO;2.

    • Search Google Scholar
    • Export Citation
  • Chang, C.-P., , and A. E. Maas Jr., 1976: A case of cross-equatorial displacement of a vortex. Mon. Wea. Rev., 104, 653655, doi:10.1175/1520-0493(1976)104<0653:ACOCDO>2.0.CO;2.

    • Search Google Scholar
    • Export Citation
  • Chang, C.-P., , and K. M. Lau, 1982: Short-term planetary-scale interactions over the tropics and midlatitude during northern winter. Part I: Contrasts between active and inactive periods. Mon. Wea. Rev., 110, 933946, doi:10.1175/1520-0493(1982)110<0933:STPSIO>2.0.CO;2.

    • Search Google Scholar
    • Export Citation
  • Chang, C.-P., , and T. S. Wong, 2008: Rare typhoon development near the equator. Recent Progress in Atmospheric Sciences: Applications to the Asia-Pacific Region, K. N. Liou, M. D. Chou, and H. H. Hsu, Eds., World Scientific, 172–181.

  • Chang, C.-P., , and M.-M. Lu, 2012: Intraseasonal predictability of Siberian high and East Asian winter monsoon and its inter-decadal variability. J. Climate, 25, 17731778, doi:10.1175/JCLI-D-11-00500.1.

    • Search Google Scholar
    • Export Citation
  • Chang, C.-P., , J. E. Erickson, , and K. M. Lau, 1979: Northeasterly cold surges and near-equatorial disturbances over the Winter MONEX area during December 1974. Part I: Synoptic aspects. Mon. Wea. Rev., 107, 812829, doi:10.1175/1520-0493(1979)107<0812:NCSANE>2.0.CO;2.

    • Search Google Scholar
    • Export Citation
  • Chang, C.-P., , J. E. Millard, , and G. T. J. Chen, 1983: Gravitational character of cold surges during Winter MONEX. Mon. Wea. Rev., 111, 293307, doi:10.1175/1520-0493(1983)111<0293:GCOCSD>2.0.CO;2.

    • Search Google Scholar
    • Export Citation
  • Chang, C.-P., , C. H. Liu, , and H. C. Kuo, 2003: Typhoon Vamei: An equatorial tropical cyclone formation. Geophys. Res. Lett., 30, 1150, doi:10.1029/2002GL016365.

  • Chang, C.-P., , P. A. Harr, , J. McBride, , and H.-H. Hsu, 2004a: Maritime Continent monsoon: Annual cycle and boreal winter variability. East Asian Monsoon, C.-P. Chang, Ed., World Scientific, 107–150.

  • Chang, C.-P., , Z. Wang, , J. Ju, , and T. Li, 2004b: On the relationship between western Maritime Continent monsoon rainfall and ENSO during northern winter. J. Climate, 17, 665672, doi:10.1175/1520-0442(2004)017<0665:OTRBWM>2.0.CO;2.

    • Search Google Scholar
    • Export Citation
  • Chang, C.-P., , P. A. Harr, , and H. J. Chen, 2005a: Synoptic disturbances over the equatorial South China Sea and western Maritime Continent during boreal winter. Mon. Wea. Rev., 133, 489503, doi:10.1175/MWR-2868.1.

    • Search Google Scholar
    • Export Citation
  • Chang, C.-P., , Z. Wang, , J. McBride, , and C. H. Liu, 2005b: Annual cycle of Southeast Asia—Maritime Continent rainfall and the asymmetric monsoon transition. J. Climate, 18, 287301, doi:10.1175/JCLI-3257.1.

    • Search Google Scholar
    • Export Citation
  • Chang, C.-P., , Z. Wang, , and H. Hendon, 2006: The Asian winter monsoon. The Asian Monsoon, B. Wang, Ed., Praxis, 89–127.

  • Chang, C.-P., , M. M. Lu, , and B. Wang, 2011: The Asian winter monsoon. The Global Monsoon System: Research and Forecast, 2nd ed. C. P. Chang et al., Eds., World Scientific Series on Asia-Pacific Weather and Climate, Vol. 5, World Scientific, 99–110.

    • Search Google Scholar
    • Export Citation
  • Cheang, B. K., 1977: Synoptic features and structures of some equatorial vortices over the South China Sea in the Malaysian region during the winter monsoon of December 1973. Pure Appl. Geophys., 115, 13031333, doi:10.1007/BF00874411.

    • Search Google Scholar
    • Export Citation
  • Chu, P.-S., , and S.-U. Park, 1984: Regional circulation characteristics associated with a cold surge event over East Asia during winter MONEX. Mon. Wea. Rev., 112, 955965, doi:10.1175/1520-0493(1984)112<0955:RCCAWA>2.0.CO;2.

    • Search Google Scholar
    • Export Citation
  • Compo, G. P., , G. N. Kiladis, , and P. J. Webster, 1999: The horizontal and vertical structure of East Asian winter monsoon pressure surges. Quart. J. Roy. Meteor. Soc., 125, 2954, doi:10.1002/qj.49712555304.

    • Search Google Scholar
    • Export Citation
  • Ding, Y. H., 1994: Monsoons over China. Kluwer Academic, 419 pp.

  • Garreaud, R. D., 2001: Subtropical cold surges: Regional aspects and global distribution. Int. J. Climatol., 21, 11811197, doi:10.1002/joc.687.

    • Search Google Scholar
    • Export Citation
  • Gong, D.-Y., , and C.-H. Ho, 2004: Intra-seasonal variability of wintertime temperature over East Asia. Int. J. Climatol., 24, 131144, doi:10.1002/joc.1006.

    • Search Google Scholar
    • Export Citation
  • Gong, D.-Y., , S. W. Wang, , and J. H. Zhu, 2001: East Asian winter monsoon and Arctic Oscillation. Geophys. Res. Lett., 28, 20732076, doi:10.1029/2000GL012311.

    • Search Google Scholar
    • Export Citation
  • Gray, W. M., 1968: Global view of tropical disturbances and storms. Mon. Wea. Rev., 96, 669700, doi:10.1175/1520-0493(1968)096<0669:GVOTOO>2.0.CO;2.

    • Search Google Scholar
    • Export Citation
  • Guan, Z., , C. Lu, , S. Mei, , and J. Cong, 2010: Seasonality of interannual inter-hemispheric oscillations over the past five decades. Adv. Atmos. Sci., 27, 10431050, doi:10.1007/s00376-009-9126-z.

  • Haylock, M., , and J. McBride, 2001: Spatial coherence and predictability of Indonesian wet season rainfall. J. Climate, 14, 38823887, doi:10.1175/1520-0442(2001)014<3882:SCAPOI>2.0.CO;2.

    • Search Google Scholar
    • Export Citation
  • He, J., , H. Lin, , and Z. Wu, 2011: Another look at influences of the Madden-Julian oscillation on the wintertime East Asian weather. J. Geophys. Res., 116, D03109, doi:10.1029/2010JD014787.

    • Search Google Scholar
    • Export Citation
  • Hendon, H. H., 2003: Indonesian rainfall variability: Impacts of ENSO and local air–sea interaction. J. Climate, 16, 17751790, doi:10.1175/1520-0442(2003)016<1775:IRVIOE>2.0.CO;2.

    • Search Google Scholar
    • Export Citation
  • Holland, G. J., 1984: On the climatology and structure of tropical cyclones in the Australian/southwest Pacific region: II. Hurricanes. Aust. Meteor. Mag., 32, 1731.

    • Search Google Scholar
    • Export Citation
  • Hung, C.-W., , and M. Yanai, 2004: Factors contributing to the onset of the Australian summer monsoon. Quart. J. Roy. Meteor. Soc., 130, 739758, doi:10.1256/qj.02.191.

    • Search Google Scholar
    • Export Citation
  • Hung, C.-W., , X. Liu, , and M. Yanai, 2004: Symmetry and asymmetry of the Asian and Australian summer monsoons. J. Climate, 17, 24132426, doi:10.1175/1520-0442(2004)017<2413:SAAOTA>2.0.CO;2.

    • Search Google Scholar
    • Export Citation
  • Jeong, J.-H., , B.-M. Kim, , C.-H. Ho, , and Y.-H. Noh, 2008: Systematic variation in wintertime precipitation in East Asia by MJO-induced extratropical vertical motion. J. Climate, 21, 788801, doi:10.1175/2007JCLI1801.1.

    • Search Google Scholar
    • Export Citation
  • Johnson, R. H., , and J. R. Zimmerman, 1986: Modification of the boundary layer over the South China Sea during a Winter MONEX cold surge event. Mon. Wea. Rev., 114, 20042015, doi:10.1175/1520-0493(1986)114<2004:MOTBLO>2.0.CO;2.

    • Search Google Scholar
    • Export Citation
  • Johnson, R. H., , and R. A. Houze Jr., 1987: Precipitating cloud systems of the Asian monsoon. Monsoon Meteorology, C.-P. Chang and T. N. Krishnamurti, Eds., Oxford University Press, 298–353.

  • Johnson, R. H., , and C.-P. Chang, 2007: Winter MONEX: A quarter century and beyond. Bull. Amer. Meteor. Soc., 88, 385388, doi:10.1175/BAMS-88-3-385.

    • Search Google Scholar
    • Export Citation
  • Jourdain, N. C., , A. S. Gupta, , A. S. Taschetto, , C. C. Ummenhofer, , A. F. Moise, , and K. Ashok, 2013: The Indo-Australian monsoon and its relationship to ENSO and IOD in reanalysis data and the CMIP3/CMIP5 simulations. Climate Dyn., 41, 3073–3102, doi:10.1007/s00382-013-1676-1.

    • Search Google Scholar
    • Export Citation
  • Juneng, L., , F. T. Tangang, , C. J. Reason, , S. Moten, , and W. A. W. Hassan, 2007: Simulation of tropical cyclone Vamei (2001) using the PSU/NCAR MM5 model. Meteor. Atmos. Phys., 97, 273290, doi:10.1007/s00703-007-0259-2.

    • Search Google Scholar
    • Export Citation
  • Kanamori, H., , T. Yasunari, , and K. Kuraji, 2013: Modulation of the diurnal cycle of rainfall associated with the MJO observed by a dense hourly rain gauge network at Sarawak, Borneo. J. Climate, 26, 4858–4875, doi:10.1175/JCLI-D-12-00158.1.

    • Search Google Scholar
    • Export Citation
  • Keen, R. A., 1982: The role of cross-equatorial tropical cyclone pairs in the Southern Oscillation. Mon. Wea. Rev., 110, 14051416, doi:10.1175/1520-0493(1982)110<1405:TROCET>2.0.CO;2.

    • Search Google Scholar
    • Export Citation
  • Koh, T.-Y., 2006: Numerical weather prediction research in Singapore and case study of Tropical Cyclone Vamei. Extended Abstracts, Winter MONEX: A Quarter Century and Beyond, WMO Asian Monsoon Workshop, Kuala Lumpur, Malaysia, WMO, 3.1.2. [Available online at http://www.ims.nus.edu.sg/activities/npde/files/tykoh.pdf.]

  • Koseki, S., , T.-Y. Koh, , and C.-K. Teo, 2013a: Effects of the cold tongue in the South China Sea on the monsoon, diurnal cycle and rainfall in the Maritime Continent. Quart. J. Roy. Meteor. Soc., 139, 15661582, doi:10.1002/qj.2052.

    • Search Google Scholar
    • Export Citation
  • Koseki, S., , T.-Y. Koh, , and C.-K. Teo, 2013b: Borneo vortex and meso-scale convective rainfall. Atmos. Chem. Phys. Discuss., 13, 21 07921 124, doi:10.5194/acpd-13-21079-2013.

    • Search Google Scholar
    • Export Citation
  • Krishnamurthy, V., , and R. S. Ajayamohan, 2010: Composite structure of monsoon low pressure systems and its relation to Indian rainfall. J. Climate, 23, 42854305, doi:10.1175/2010JCLI2953.1.

    • Search Google Scholar
    • Export Citation
  • Lander, M. A., 1990: Evolution of the cloud pattern during the formation of tropical cyclone twins symmetrical with respect to the equator. Mon. Wea. Rev., 118, 11941202, doi:10.1175/1520-0493(1990)118<1194:EOTCPD>2.0.CO;2.

    • Search Google Scholar
    • Export Citation
  • Lau, K.-M., , and P. H. Chan, 1983: Short-term climate variability and atmospheric teleconnections from satellite-observed outgoing longwave radiation. Part II: Lagged correlations. J. Atmos. Sci., 40, 27512767, doi:10.1175/1520-0469(1983)040<2751:STCVAA>2.0.CO;2.

    • Search Google Scholar
    • Export Citation
  • Lau, K.-M., , and C.-P. Chang, 1987: Planetary scale aspects of winter monsoon and teleconnections. Monsoon Meteorology, C.-P. Chang and T. N. Krishnamurti, Eds., Oxford University Press, 161–202.

    • Search Google Scholar
    • Export Citation
  • Lim, H., , and C.-P. Chang, 1981: A theory for mid-latitude forcing of tropical motions during winter monsoons. J. Atmos. Sci., 38, 23772392, doi:10.1175/1520-0469(1981)038<2377:ATFMFO>2.0.CO;2.

    • Search Google Scholar
    • Export Citation
  • LinHo, , and B. Wang, 2002: The time–space structure of the Asian–Pacific summer monsoon: A fast annual cycle view. J. Climate, 15, 20012019, doi:10.1175/1520-0442(2002)015<2001:TTSSOT>2.0.CO;2.

    • Search Google Scholar
    • Export Citation
  • Liu, W. T., 2002: Progress in scatterometer application. J. Oceanogr., 58, 121136, doi:10.1023/A:1015832919110.

  • Loh, W. T., , L. Jueng, , and F. T. Tangang, 2011: Sensitivity of Typhoon Vamei (2001) simulation to planetary boundary layer parameterization using PSU/NCAR MM5. Pure Appl. Geophys., 168, 17991811, doi:10.1007/s00024-010-0176-z.

    • Search Google Scholar
    • Export Citation
  • Love, G., 1985: Cross-equatorial influence of winter hemisphere subtropical cold surges. Mon. Wea. Rev., 113, 14871498, doi:10.1175/1520-0493(1985)113<1487:CEIOWH>2.0.CO;2.

    • Search Google Scholar
    • Export Citation
  • Lu, M. M., , and C. P. Chang, 2009: Unusual late-season cold surges during the 2005 Asian winter monsoon: Roles of Atlantic blocking and the central Asian anticyclone. J. Climate, 22, 52055217, doi:10.1175/2009JCLI2935.1.

    • Search Google Scholar
    • Export Citation
  • Madden, R. A., , and P. R. Julian, 1972: Description of global-scale circulation cells in the tropics with a 40–50 day period. J. Atmos. Sci., 29, 11091123, doi:10.1175/1520-0469(1972)029<1109:DOGSCC>2.0.CO;2.

    • Search Google Scholar
    • Export Citation
  • Matsumoto, J., 1992: The seasonal changes in Asian and Australian monsoon regions. J. Meteor. Soc. Japan, 70, 257273.

  • Matsumoto, J., , and T. Murakami, 2002: Seasonal migration of monsoons between the Northern and Southern Hemisphere as revealed from equatorially symmetric and asymmetric OLR data. J. Meteor. Soc. Japan, 80, 419437, doi:10.2151/jmsj.80.419.

    • Search Google Scholar
    • Export Citation
  • Matsuno, T., 1966: Quasigeostrophic motions in the equatorial area. J. Meteor. Soc. Japan, 44, 2543.

  • McBride, J. L., 1995: Tropical cyclone formation. Global Perspective on Tropical Cyclones, R. L. Elsberry, Ed., WMO Tech. Doc. 693, 63–105.

    • Search Google Scholar
    • Export Citation
  • Meehl, G. A., 1987: The annual cycle and interannual variability in the tropical Pacific and Indian Ocean region. Mon. Wea. Rev., 115, 2750, doi:10.1175/1520-0493(1987)115<0027:TACAIV>2.0.CO;2.

    • Search Google Scholar
    • Export Citation
  • Moron, V., , A. W. Robertson, , and J.-H. Qian, 2010: Local versus large-scale characteristics of monsoon onset and post-onset rainfall over Indonesia. Climate Dyn., 34, 281299, doi:10.1007/s00382-009-0547-2.

    • Search Google Scholar
    • Export Citation
  • Neale, R., , and J. Slingo, 2003: The Maritime Continent and its role in the global climate: A GCM study. J. Climate, 16, 834848, doi:10.1175/1520-0442(2003)016<0834:TMCAIR>2.0.CO;2.

    • Search Google Scholar
    • Export Citation
  • Oh, J.-H., , K.-Y. Kim, , and G.-H. Lim, 2012: Impact of MJO on the diurnal cycle of rainfall over the western Maritime Continent in the austral summer. Climate Dyn., 38, 11671180, doi:10.1007/s00382-011-1237-4.

    • Search Google Scholar
    • Export Citation
  • Ooi, S. H., , A. A. Samah, , and P. Braesicke, 2011: A case study of the Borneo vortex genesis and its interactions with the global circulation. J. Geophys. Res., 116, D21116, doi:10.1029/2011JD015991.

    • Search Google Scholar
    • Export Citation
  • Park, T.-W., , C.-H. Ho, , and S. Yang, 2011: Relationship between the Arctic Oscillation and cold surges over East Asia. J. Climate, 24, 6883, doi:10.1175/2010JCLI3529.1.

    • Search Google Scholar
    • Export Citation
  • Peatman, S. C., , A. J. Mathews, , and D. P. Stevens, 2013: Propagation of the Madden–Julian Oscillation through the Maritime Continent and scale interaction with the diurnal cycle of precipitation. Quart. J. Roy. Meteor. Soc., 140, 814–825, doi:10.1002/qj.2161.

    • Search Google Scholar
    • Export Citation
  • Qian, J.-H., , A. W. Robertson, , and V. Moron, 2010: Interactions between ENSO, monsoon and diurnal cycle in rainfall variability over Java, Indonesia. J. Atmos. Sci., 67, 35093523, doi:10.1175/2010JAS3348.1.

    • Search Google Scholar
    • Export Citation
  • Qian, J.-H., , A. W. Robertson, , and V. Moron, 2013: Diurnal cycle in different weather regimes and rainfall variability over Borneo associated with ENSO. J. Climate, 26, 17721790, doi:10.1175/JCLI-D-12-00178.1.

    • Search Google Scholar
    • Export Citation
  • Ramage, C. S., 1968: Role of a tropical “maritime continent” in the atmospheric circulation. Mon. Wea. Rev., 96, 365369, doi:10.1175/1520-0493(1968)096<0365:ROATMC>2.0.CO;2.

    • Search Google Scholar
    • Export Citation
  • Ramage, C. S., 1971: Monsoon Meteorology. Academic Press, 296 pp.

  • Rauniyar, S. P., , and K. J. E. Walsh, 2011: Scale interaction of the diurnal cycle of rainfall over the Maritime Continent and Australia: Influence of the MJO. J. Climate, 24, 325348, doi:10.1175/2010JCLI3673.1.

    • Search Google Scholar
    • Export Citation
  • Robertson, A. W., , V. Moron, , J.-H. Qian, , C.-P. Chang, , F. Tangang, , E. Aldrian, , T. Y. Koh, , and L. Juneng, 2011: The Maritime Continent monsoon. The Global Monsoon System: Research and Forecast, 2nd ed. C. P. Chang et al., Eds., World Scientific Series on Asia-Pacific Weather and Climate, Vol. 5, World Scientific, 85–98.

    • Search Google Scholar
    • Export Citation
  • Simpson, J., , C. Kummerow, , W.-K. Tao, , and R. F. Adler, 1996: On the Tropical Rainfall Measuring Mission. Meteor. Atmos. Phys., 60, 1936, doi:10.1007/BF01029783.

    • Search Google Scholar
    • Export Citation
  • Sontakke, N. A., , G. B. Pant, , and N. Singh, 1993: Construction of all-India summer monsoon rainfall series for the period 1844–1991. J. Climate, 6, 18071811, doi:10.1175/1520-0442(1993)006<1807:COAISM>2.0.CO;2.

    • Search Google Scholar
    • Export Citation
  • Takahashi, H. G., 2012: Orographic low-level clouds of Southeast Asia during the cold surges of the winter monsoon. Atmos. Res., 131, 22–33.

    • Search Google Scholar
    • Export Citation
  • Takaya, K., , and H. Nakamura, 2005a: Geographical dependence of upper-level blocking formation associated with intraseasonal amplification of the Siberian high. J. Atmos. Sci., 62, 44414449, doi:10.1175/JAS3628.1.

    • Search Google Scholar
    • Export Citation
  • Takaya, K., , and H. Nakamura, 2005b: Mechanisms of intraseasonal amplification of the cold Siberian high. J. Atmos. Sci., 62, 44234440, doi:10.1175/JAS3629.1.

    • Search Google Scholar
    • Export Citation
  • Tangang, F. T., , L. Juneng, , and C. J. Reason, 2007: MM5 simulated evolution and structure of Typhoon Vamei (2001). Solid Earth, Ocean Science & Atmospheric Science, Y.-T. Chen, Ed., Advances in Geosciences, Vol. 9, World Scientific, 191207.

    • Search Google Scholar
    • Export Citation
  • Tangang, F. T., , L. Juneng, , E. Salimun, , P. N. Vinayachandran, , Y. K. Seng, , C. J. C. Reason, , S. K. Behera, , and T. Yasunari, 2008: On the roles of the northeast cold surge, the Borneo vortex, the Madden-Julian Oscillation, and the Indian Ocean Dipole during the extreme 2006/2007 flood in southern peninsular Malaysia. Geophys. Res. Lett., 35, L14S07, doi:10.1029/2008GL033429.

    • Search Google Scholar
    • Export Citation
  • Trilaksono, N. J., , S. Otsuka, , and S. Yoden, 2012: A time-lagged ensemble simulation on the modulation of precipitation over West Java in January–February 2007. Mon. Wea. Rev., 140, 601616, doi:10.1175/MWR-D-11-00094.1.

    • Search Google Scholar
    • Export Citation
  • Virts, K. S., , J. M. Wallace, , M. L. Hutchins, , and R. H. Holzworth, 2013: Diurnal lightning variability over the Maritime Continent: Impact of low-level winds, cloudiness, and the MJO. J. Atmos. Sci., 70, 31283146, doi:10.1175/JAS-D-13-021.1.

    • Search Google Scholar
    • Export Citation
  • Vissa, N. K., , A. N. V. Satyanarayana, , and B. Prasad Kumar, 2013: Impact of South China Sea cold surges and Typhoon Peipah on initiating Cyclone Sidr in the Bay of Bengal. Pure Appl. Geophys., 170, 2369–2381, doi:10.1007/s00024-013-0671-0.

    • Search Google Scholar
    • Export Citation
  • Wang, Z., , and C.-P. Chang, 2008: Mechanism of the asymmetric monsoon transition as simulated in an AGCM. J. Climate, 21, 18291836, doi:10.1175/2007JCLI1920.1.

    • Search Google Scholar
    • Export Citation
  • Wheeler, M. C., , and H. H. Hendon, 2004: An all-season Real-time Multivariate MJO index: Development of an index for monitoring and prediction. Mon. Wea. Rev., 132, 19171932, doi:10.1175/1520-0493(2004)132<1917:AARMMI>2.0.CO;2.

    • Search Google Scholar
    • Export Citation
  • Wu, B., , and J. Wang, 2002: Possible impacts of winter Arctic Oscillation on Siberian high, the East Asian winter monsoon and sea-ice extent. Adv. Atmos. Sci., 19, 297320, doi:10.1007/s00376-002-0024-x.

    • Search Google Scholar
    • Export Citation
  • Wu, C.-H., , and H.-H. Hsu, 2009: Topographic influence on the MJO in the Maritime Continent. J. Climate, 22, 54335448, doi:10.1175/2009JCLI2825.1.

    • Search Google Scholar
    • Export Citation
  • Wu, M. C., , and J. C. L. Chan, 1995: Surface features of winter monsoon surges over south China. Mon. Wea. Rev., 123, 662680, doi:10.1175/1520-0493(1995)123<0662:SFOWMS>2.0.CO;2.

    • Search Google Scholar
    • Export Citation
  • Yanai, M., , and T. Tomita, 1998: Seasonal and interannual variability of atmospheric heat sources and moisture sinks as determined from NCEP–NCAR reanalysis. J. Climate, 11, 463482, doi:10.1175/1520-0442(1998)011<0463:SAIVOA>2.0.CO;2.

    • Search Google Scholar
    • Export Citation
  • Yang, S., , K.-M. Lau, , and K.-M. Kim, 2002: Variations of the East Asian jet stream and Asian–Pacific–American winter climate anomalies. J. Climate, 15, 306325, doi:10.1175/1520-0442(2002)015<0306:VOTEAJ>2.0.CO;2.

    • Search Google Scholar
    • Export Citation
  • Yasunari, T., 1991: The monsoon year—A new concept of the climatic year in the tropics. Bull. Amer. Meteor. Soc., 72, 13311338, doi:10.1175/1520-0477(1991)072<1331:TMYNCO>2.0.CO;2.

    • Search Google Scholar
    • Export Citation
  • Yoneyama, K., , C. Zhang, , and C. N. Long, 2013: Tracking pulses of the Madden–Julian oscillation. Bull. Amer. Meteor. Soc., 94, 18711891, doi:10.1175/BAMS-D-12-00157.1.

    • Search Google Scholar
    • Export Citation
  • Zhang, C., 2005: Madden-Julian Oscillation. Rev. Geophys., 43, RG2003, doi:10.1029/2004RG000158.

  • Zhang, C., 2013: The CINDY/DYNAMO field campaign: Advancing our understanding and prediction of MJO initiation. Extended Abstracts, Fifth WMO Int. Workshop on Monsoons, Macao, China, WMO, 294–298.

  • Zhang, Y., , K. R. Sperber, , and J. S. Boyle, 1997: Climatology and interannual variation of the East Asian winter monsoon: Results from the 1979–95 NCEP/NCAR reanalysis. Mon. Wea. Rev., 125, 26052619, doi:10.1175/1520-0493(1997)125<2605:CAIVOT>2.0.CO;2.

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Monsoon Convection in the Maritime Continent: Interaction of Large-Scale Motion and Complex Terrain

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  • 1 Department of Atmospheric Sciences, National Taiwan University, Taipei, Taiwan
  • 2 Central Weather Bureau, Taipei, Taiwan
  • 3 Department of Physics, National University of Singapore, Singapore
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Abstract

The Asian monsoon is a planetary-scale circulation system powered by the release of latent heat, but important features of deep convection and rainfall distribution cannot be adequately represented by the large-scale patterns. This is mainly due to the strong influences of terrain that are important across a wide range of horizontal scales, especially over the Maritime Continent where the complex terrain has a dominant effect on the behavior of convective rainfall during the boreal winter monsoon. This chapter is a review and summary of published results on the effects on monsoon convection due to interactions between the Maritime Continent terrain and large-scale transient systems.

The Maritime Continent topographic features strongly affect both the demarcation of the boreal summer and winter monsoon regimes and the asymmetric seasonal marches during the transition seasons. In the western part of the region, the complex interactions that lead to variability in deep convection are primarily controlled by the cold surges and the synoptic-scale Borneo vortex. The Madden–Julian oscillation (MJO) reduces the frequency of weaker surges through an interference with their structure. It also influences convection, particularly on the diurnal cycle and when synoptic activities are weak. When both surges and the Borneo vortex are present, interactions between these circulations with the terrain can cause the strongest convection, which has included Typhoon Vamei (2001), which is the only observed tropical cyclone that developed within 1.5° of the equator.

The cold surges are driven by midlatitude pressure rises associated with the movement of the Siberian high. Rapid strengthening of surge northeasterly winds can be explained as the tropical response via a geostrophic adjustment process to the pressure forcing in the form of an equatorial Rossby wave group. Dispersion of meridional modes leads to a northeast–southwest orientation that allows the surge to stream downstream through the similarly oriented South China Sea. This evolution leads to a cross-equatorial return flow and a cyclonic circulation at the equator, and thus a mechanism for equatorial cyclogenesis. Although the narrow width of the southern South China Sea facilitates strengthening of the cold surge, it also severely restricts the likelihood of cyclone development so that Vamei remains to be the only typhoon observed in the equatorial South China Sea.

Climate variations from El Niño–Southern Oscillation to climate change may impact the interactions between the large-scale motion and Maritime Continent terrain because they lead to changes in the mean flow. The thermodynamic effects on the interaction between MJO and the monsoon surges and Borneo vortex over the complex terrain also need to be addressed. These and other questions such as any possible changes in the likelihood of equatorial tropical cyclogenesis as a result of climate change are all important areas for future research.

Corresponding author address: Dr. Chih-Pei Chang, Department of Meteorology, Naval Postgraduate School, 589 Dyer Road, Room 254, Monterey, CA 93943. E-mail: cpchang@nps.edu

Abstract

The Asian monsoon is a planetary-scale circulation system powered by the release of latent heat, but important features of deep convection and rainfall distribution cannot be adequately represented by the large-scale patterns. This is mainly due to the strong influences of terrain that are important across a wide range of horizontal scales, especially over the Maritime Continent where the complex terrain has a dominant effect on the behavior of convective rainfall during the boreal winter monsoon. This chapter is a review and summary of published results on the effects on monsoon convection due to interactions between the Maritime Continent terrain and large-scale transient systems.

The Maritime Continent topographic features strongly affect both the demarcation of the boreal summer and winter monsoon regimes and the asymmetric seasonal marches during the transition seasons. In the western part of the region, the complex interactions that lead to variability in deep convection are primarily controlled by the cold surges and the synoptic-scale Borneo vortex. The Madden–Julian oscillation (MJO) reduces the frequency of weaker surges through an interference with their structure. It also influences convection, particularly on the diurnal cycle and when synoptic activities are weak. When both surges and the Borneo vortex are present, interactions between these circulations with the terrain can cause the strongest convection, which has included Typhoon Vamei (2001), which is the only observed tropical cyclone that developed within 1.5° of the equator.

The cold surges are driven by midlatitude pressure rises associated with the movement of the Siberian high. Rapid strengthening of surge northeasterly winds can be explained as the tropical response via a geostrophic adjustment process to the pressure forcing in the form of an equatorial Rossby wave group. Dispersion of meridional modes leads to a northeast–southwest orientation that allows the surge to stream downstream through the similarly oriented South China Sea. This evolution leads to a cross-equatorial return flow and a cyclonic circulation at the equator, and thus a mechanism for equatorial cyclogenesis. Although the narrow width of the southern South China Sea facilitates strengthening of the cold surge, it also severely restricts the likelihood of cyclone development so that Vamei remains to be the only typhoon observed in the equatorial South China Sea.

Climate variations from El Niño–Southern Oscillation to climate change may impact the interactions between the large-scale motion and Maritime Continent terrain because they lead to changes in the mean flow. The thermodynamic effects on the interaction between MJO and the monsoon surges and Borneo vortex over the complex terrain also need to be addressed. These and other questions such as any possible changes in the likelihood of equatorial tropical cyclogenesis as a result of climate change are all important areas for future research.

Corresponding author address: Dr. Chih-Pei Chang, Department of Meteorology, Naval Postgraduate School, 589 Dyer Road, Room 254, Monterey, CA 93943. E-mail: cpchang@nps.edu
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