Dynamical Initialization of Boundary-Layer Data |
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| Authors: | G K Sen M Chatterjee D K Sinha |
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| Institution: | (1) Centre for Atmospheric Sciences, University of Calcutta, 92 A.P.C. Road, Calcutta, 700 009, India;(2) P-4, Morÿheel Avenue, Calcutta, 700 074, India |
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| Abstract: | A procedure for the dynamic initialization of wind and temperature fields within the atmospheric boundary layer (ABL) is presented. The procedure uses transilient turbulence theory to assess the turbulent fluxes from observed wind and temperature data, which are used to estimate the eddy transfer coefficients, so enabling a local closure ABL model to be integrated forward in time to a new steady state. The method has been applied to initialize kytoon data taken at Kharagpur (22.3° N, 87.2° E) during the MONTBLEX field programme. Results of a case study for 17 June 1990 are discussed. |
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| Keywords: | Dynamical initialization Transilient fluxes Eddy transfer coefficients |
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