Journal
ATMOSPHERIC SCIENCE LETTERS
Volume 11, Issue 3, Pages 216-222Publisher
WILEY
DOI: 10.1002/asl.277
Keywords
ABL top; GPS RO; radiosonde; ITCZ
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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 (C) 2010 Royal Meteorological Society
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