The determination of rainfall volumes using a conventional s-band weather radar
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O'Beirne, Sean
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Abstract
Two aspects of radar-based measurement of convective rainfall over the
Transvaal Highveld are examined. Drop size distributions (DSDs) are studied in
order to quantify the effects of drop size distribution variability on the Z-R
relationship, and the area-time integral (ATI) method is investigated as a possible
means of radar rainfall measurement. Drop sorting effects are clearly evident in
convective rain with resultant DSDs having higher numbers of large drops and
causing Z-R derived rain rates to be overestimated. Abbreviation abstract)
Description
A Dissertation Submitted to the Faculty of Science,
University of the Witwatersrand, Johannesburg,
for the Degree of Master of Science