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Importance of raindrop shape12/31/2023 Have larger curvature and slope values than in the cold seasons/regions. The derived coefficients for the CG method for different seasons coupled with those available in the literature reveal that the warm seasons/regions typically Used in linear drop shape models is valid only for the cold season. Studies, varies considerably between the seasons, with warmer seasons showing a smaller slope value than the cold season. The slope of the drop size–shape relation, assumed to be constant in several The seasonal variation in DSD is quite large and significant, and as a result, the coefficients also vary considerably between the seasons. ![]() The coefficients obtained for different DSD relations for monsoonal rain are found to be different from those of existing relations elsewhere. ![]() Multiyear measurements from a Joss–Waldvogel disdrometer (5 years) and X-band dual-polarization radar (2 years) made at Gadanki (13.5 ∘ N, 79.18 ∘ E), a low-latitude station, are used to (i) retrieve appropriate raindrop size distribution (DSD) relations for monsoonal rain, (ii) understand their dependency on temperature, the raindrop size shape model and season and (iii) assess polarimetric radar DSD retrievals by various popular techniques (the exponential (Exp), constrained Gamma (CG), normalized Gamma (N-Gamma) and β methods).
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