A robust method to determine global distribution of atmospheric boundary layer top from COSMIC GPS RO measurements | Zendy

Ratnam M. V. | Zendy; Basha S. G. | Zendy

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A robust method to determine global distribution of atmospheric boundary layer top from COSMIC GPS RO measurements

Author(s) -

Ratnam M. V.,

Basha S. G.

Publication year - 2010

Publication title -

atmospheric science letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.951

H-Index - 45

ISSN - 1530-261X

DOI - 10.1002/asl.277

Subject(s) - planetary boundary layer , radio occultation , covariance , cosmic cancer database , radiosonde , global positioning system , environmental science , meteorology , remote sensing , mathematics , computer science , physics , geology , statistics , astronomy , telecommunications , turbulence

In this study, we introduce a robust method for precise determination of atmospheric boundary layer (ABL) top from COSMIC global positioning system radio occultation measurements. We apply a wavelet covariance transform to compute the convolution of COSMIC‐observed bending angle/refractivity profile with a Haar function and use the maximum covariance to identify the ABL top, making detection of even small transitions possible. Results obtained were compared with radiosonde N profiles for verification of the ABL top. This procedure developed was used to study the global distribution of ABL top with special reference to the inter‐tropical convergence zone. Copyright © 2010 Royal Meteorological Society

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