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Physical Initialization in Tropical Cyclone Forecasting

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Advanced Numerical Modeling and Data Assimilation Techniques for Tropical Cyclone Prediction

Abstract

To improve the definition of the initial state and forecasts within the tropics is an objective at many numerical weather prediction centres. Physical initialization is an attempt to improve the analysis of the basic state variables by using nonconventional data like rain rates, outgoing longwave radiation (OLR) or condensation heating rates derived from rain rates. The initialization procedure consists of two steps (Krishnamurti et al., 1991, 1994). This presentation covers the handling of physical initialization for cloud resolving non-hydrostatic models:

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References

  • Krishnamurti, T.N., J. Xue, H.S. Bedi, K. Ingles and D. Oosterhof, 1991: Physical initialization for numerical weather prediction over the tropics. Tellus, 43AB, 51-81.

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  • Krishnamurti, T.N., H.S. Bedi, G.D. Rohaly, D. Oosterhof, R.C. Torres, E. Williford and N. Surgi, 1994: Physical Initialization. ECMWF Workshop, Modelling, validation and assimilation of clouds, 31.

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  • Yanai, M., S. Esbensen and J.H. Chu, 1973: Determination of bulk properties of tropical cloud clusters from large scale heat and moisture budgets. J. Atmos. Sci., 30, 611-627.

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Authors and Affiliations

  1. Florida State University, Tallahassee, Fl, 32306, USA

    T. N. Krishnamurti

  2. National Centre for Medium Range Weather Forecasting (NCMRWF), NOIDA, UP, 201309, India

    A. Jaya Kumar

  3. Regional Meteorological Centre, India Meteorological Department, Chennai, 600001, India

    Y. E. A. Raj & S. B Thampi

Authors
  1. T. N. Krishnamurti
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  2. A. Jaya Kumar
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  3. Y. E. A. Raj
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  4. S. B Thampi
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Editor information

Editors and Affiliations

  1. School of Earth, Ocean and Climate Sciences, Indian Institute of Technology Bhubaneswar, 110016, Hauz Khas, Delhi, India

    U. C. Mohanty

  2. Hurricane Research Division, Atlantic Oceanographic Meteorological Laboratory, NOAA, Rickenbacker Causeway, 4301, 33149, Miami, FL, USA

    Sundararaman G. Gopalakrishnan

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Krishnamurti, T.N., Kumar, A.J., Raj, Y.E.A., Thampi, S.B. (2016). Physical Initialization in Tropical Cyclone Forecasting. In: Mohanty, U.C., Gopalakrishnan, S.G. (eds) Advanced Numerical Modeling and Data Assimilation Techniques for Tropical Cyclone Prediction. Springer, Dordrecht. https://doi.org/10.5822/978-94-024-0896-6_15

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