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Chen, Tsing-Chang; Yoon, Jin-Ho (2011)
Publisher: Co-Action Publishing
Journal: Tellus A
Languages: English
Types: Article
Several westward propagation properties of the Indian monsoon depression were neglected byprevious studies. They include: (1) the slower propagation speed of the depression depicted bya quasi-geostrophic model, (2) the initiation of the asymmetric secondary circulation withrespect to the depression center, and (3) the absence of the depression perturbation in the uppertroposphere. Some further insights into these neglected propagation properties of the depressionare obtained from the streamfunction budget analysis with the ECMWF (European Centre forMedium RangeWeather Forecasts) reanalysis data. (1) The inclusion of relative vorticity stretching,which is neglected in a quasi-geostrophic model, increases the depression’s westward propagationspeed. (2) Within the large-scale environment of the summer monsoon, the coupling ofthe east–west differentiation of the meridional absolute vorticity advection with the CISKmechanism is conducive to the initiation and development of the asymmetric secondary circulationassociated with the depression. (3) The Tibetan high is formed by summertime global-scalestationary waves which are maintained by a Sverdrup balance. The positive streamfunctiontendency induced by the upper-tropospheric vortex stretching over the monsoon region suppressesthe development of the monsoon depression in the upper troposphere.DOI: 10.1034/j.1600-0870.2000.01127.x
  • The results below are discovered through our pilot algorithms. Let us know how we are doing!

    • Charney, J. G. 1973. Movable CISK. J. Atmos. Sci. 30, 50-52.
    • Chen, T.-C. and Chen, J.-M. 1990. On the maintenance of stationary eddies in terms of the streamfunction budget analysis. J. Atmos. Sci. 47, 2818-2824.
    • Chen, T.-C. and Weng, S.-P. 1999. Interannual and intraseasonal variations in monsoon depressions and their westward-propagating predecessors. Mon. Wea. Rev. 127, 1005-1020.
    • Chen, T.-C. and Weng, S.-P. 1999. Maintenance of austral summertime upper-tropospheric circulation over tropical South America: The Bolivian high-Nordeste low system. J. Atmos. Sci. 56, 2081-2100.
    • Daggupaty, S. M. and Sikka, D. R. 1977. On the vorticity budget and vertical velocity distribution associated with the life cycle of a monsoon depression. J. Atmos. Sci. 34, 773-792.
    • Holton, J. R. and Colton, D. E. 1972. A diagnostic study of the vorticity balance at 200 mb in the tropics during the northern summer. J. Atmos. Sci. 29, 1124-1128.
    • Kang, I.-S. and Held, I.-M. 1986. Linear and nonlinear diagnostic models of stationary eddies in the upper troposphere during northern summer. J. Atmos. Sci. 43, 3045-3057.
    • Krishnamurti, T. N. 1968. A diagnostic balance model for studies of weather systems of low and high latitudes, Rossby number less than 1. Mon. Wea. Rev. 96, 197-207.
    • Krishnamurti, T.-N. 1971a. Tropical east-west circulations during the northern summer. J. Atmos. Sci. 28, 1342-1347.
    • Krishnamurti, T.-N. 1971b. Observational study of the tropical upper tropospheric motion field during the Northern Hemisphere summer. J. Appl. Meteor. 10, 1066-1096.
    • Krishnamurti, T.-N. 1979. T ropical meteorology. Compendium of meteorology (II). WMO Rep. 364, 428 pp. (Available from World Meteorological Organization. Case Postale 2300. CH-1211, Geneva, Switzerland.) Krishnamurti, T.-N. and Subrahnanyam, D. 1982. The 30-60 day mode at 850 mb during MONEX. J. Atmos. Sci. 39, 2088-2095.
    • Krishnamurti, T.-N., Molinari, J., Pan, H. and Wong, V. 1977a. Downstream amplification and formation of monsoon disturbances. Mon. Wea. Rev. 105, 1281-1297.
    • Krishnamurti, T.-N., Kanamitsu, M., Godbale, R., Chang, C. B., Carr, F. and Chow, J. H. 1976. Study of a monsoon depression (II), dynamical structure. J. Meteor. Soc. Japan 54, 208-226.
    • Matsuno, T. 1976. Quasi-geostrophic motions in the equatorial area. J. Meteor. Soc. Japan 53, 227-240.
    • Nitta, T. and Masuda, K. 1981. Observational study of a monsoon depression developed over the Bay of Bengal during summer MONEX. J. Meteor. Soc. Japan 59, 672-682.
    • Saha, K. and Chang, C.-P. 1981. The baroclinic processes of monsoon depressions. Mon. Wea. Rev. 111, 1506-1514.
    • Saha, K. and Saha, S. 1988. Thermal budget of a monsoon depression in the Bay of Bengal during FGGEMONEX 1979. Mon. Wea. Rev. 116, 242-254.
    • Saha, K., Sanders, F. and Shukla, J. 1981. Westward propagating predecessors of monsoon depressions. Mon. Wea. Rev. 109, 330-343.
    • Sanders, F. 1984. Quasi-geostrophic diagnosis of the monsoon depression of 5-8 July 1979. J. Atmos. Sci. 41, 538-552.
    • Shukla, J. 1978. CISK-barotropic-baroclinic instability and the growth of monsoon depressions. J. Atmos. Sci. 35, 495-508.
    • Sikka, D. R. 1977. Some aspects of the life history, structure and movement of monsoon depressions. Pure and Applied Geophysics 115, 1501-1529.
    • Susskind, J., Piraino, P., Rokke, L., Iredell, L. and Mehta, A. 1997. Characteristics of the TOVS pathfinder path A dataset. Bull. Amer. Meteor. Soc. 78, 1449-1472.
    • Warner, C. 1984. Core structure of a Bay of Bengal monsoon depression. Mon. Wea. Rev. 112, 137-152.
    • Warner, C. and Grumm, R. H. 1984. Cloud distributions in a Bay of Bengal monsoon depression. Mon. Wea. Rev. 112, 153-172.
    • White, G. H. 1982. An observational study of the Northern Hemisphere extratropical summertime general circulation. J. Atmos. Sci. 39, 28-40.
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