Abstract
The MM5 and its four dimensional variational data assimilation (4D-Var) system are used in this paper. Based on the National Centers for Environmental Prediction/National Center for Atmospheric Research (NCEP/NCAR) reanalysis data, the authors generate an optimal initial condition for a typhoon by using the bogus data assimilation (BDA) scheme. BDA is able to recover many of the structural features of typhoons including a warm-core vertex, the correct center position, and the strong circulation. As a result of BDA using a bogus surface low, dramatic improvement is achieved in the 72 h prediction of typhoon Herb. Through several cases, the initialization by BDA effectively generates the harmonious inner structure of the typhoon, but which is lacking in the original analysis field. Therefore the intensity forecast is improved greatly. Some improvements are made in the track forecast, but more work still needs to be done.
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References
Blackadar, A. K., 1979: High resolution models of the planetary boundary layer.Advances in Environmental Science and Engineering,1, 50–85.
Chen Lianshou, 1997: The prediction of typhoons with asymmetrical structure and sudden change in movement.Guangdong Meteorology, the supplement of the third issue. (in Chinese)
Chen Lianshou, and Meng Zhiyong, 2001: An overview on tropical cyclone research progress in China during the past ten years.Chinese J. Atmos. Sci.,25(3), 420–432. (in Chinese)
Ding Yihui, 1991:Advanced Synoptic Meteorology, China Meteorological Press, Beijing, 792pp.
Fujita, T., 1952: Pressure distribution within a typhoon.Grophys. Mag.,23, 437–451.
Grell, G. A., 1993: Prognostic evaluation of assumptions used by cumulus parameterization.Mon. Wea. Rev.,121, 764–787.
Hong, S. -Y., and H. L. Pan, 1996: Nonlocal boundary layer vertical diffusion in a medium-range forecast model.Mon. Wea. Rev.,124, 2322–2339.
Kurihara, Y., M. A. Bender, and R. J. Ross, 1993: An initialization scheme of a hurricane model by vertex specification.Mon. Wea. Rev.,121, 2030–2045.
Liu, D. C., and J. Nocedal, 1989: On the limited memory BFGS method for large-scale optimization.Math. Programing,45, 503–528.
Lord, S. J., 1991: A bogusing system for vortex circulation in the National Meteorological Center global forecast model. The 19th conference on Hurricanes and Tropical Meteorology.American Meteorological Society., 6–10 May, 1991, Miami, Florida, 328–330.
Meng Zhiyong, Chen Lianshou, and Xu Xiangde, 2002: Recent progress on tropical cyclone research in China.Advances in Atmospheric Sciences,19(1), 103–110.
Navon, I. M., X. Zou., J. Derber, and J. Sela, 1992: Variational data assimilation with an adiabatic version of the NMC spectral model.Mon. Wea. Rev.,120, 1433–1466.
Wang Bin, X. Zou, and Zhu Jiang, 2000: Data assimilation and its applications.Procedings of the National Academy of Science of the United States of America,97(21), 11143–11144.
Xiao, Qingnong, Xiaolei Zou, and Bin Wang, 2000: Initialization and simulation of a landfalling hurricane using a variational bogus data assimilation scheme.Mon. Wea. Rev.,128, 2252–2269.
Zou, X., F. Vandenberghe, M. Pondeca, and Y. -H. Kuo, 1997: Introduction to adjoint teohniques and the MM5 adjoint modeling system, NCAR Technical Note, NCAR/TN-35-STR, National Center for Atmospheric Resoarch, Boulder Co, 110pp.
Zou, Xiaolei, and Xiao Qingnong, 1999, Studies on the initialization and simulation of a mature hurricane using a variational bogus data assimilation scheme.Journal of the Atmospheric Sciences,57, 836–860.
Zhu Min, 2000: Four dimensional data assimilation and its use in mesoscale numerical models.Mathematics and Study,21, 54–61. (in Chinese)
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Xiaoyan, Z., Bin, W., Zhongzhen, J. et al. Initialization and simulation of a typhoon using 4-dimensional variational data assimilation — Research on typhoon Herb (1996). Adv. Atmos. Sci. 20, 612–622 (2003). https://doi.org/10.1007/BF02915504
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DOI: https://doi.org/10.1007/BF02915504