AbstractThe microstructure of rain has been studied with observations using a vertical looking Micro Rain Radar (MRR) at Ahmedabad (23.06°N, 72.62°E), a tropical location in the Indian region. The rain height, derived from the bright band signature of melting layer of radar reflectivity profile, is found to be variable between the heights 4600m and 5200m. The change in the nature of rain, classified on the basis of radar reflectivity, is also observed through the MRR. It has been found that there are three types of rain, namely, convective, mixed and stratiform rain, prevailing with different vertical rain microstructures, such as, Drop Size Distribution (DSD), mean drop size, rain rate, liquid water content and average fall speed of the drops at different heights. It is observed that the vertical DSD profile is more inhomogeneous for mixed and stratiform type rain than for convective type rain. It is also found that the large number of drops of size <0.5mm is present in convective rain whereas in stratiform rain, drops concentration is appreciable up to 1mm. A comparison of measurements taken by ground based Disdrometer and that from the 200m level obtained from MRR shows good agreement for rain rate and DSD at smaller rain rate values. The results may be useful for understanding rain structures over this region.


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    Titel :

    Investigation of vertical profile of rain microstructure at Ahmedabad in Indian tropical region


    Beteiligte:
    Das, Saurabh (Autor:in) / Shukla, Ashish K. (Autor:in) / Maitra, Animesh (Autor:in)

    Erschienen in:

    Advances in Space Research ; 45 , 10 ; 1235-1243


    Erscheinungsdatum :

    2010-01-05


    Format / Umfang :

    9 pages




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch




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