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Proceedings Paper

Analysis of Joss-Waldvogel disdrometer measurements in rainfall events
Author(s): Elissavet Feloni; Konstantinos Kotsifakis; Nikolaos Dervos; George Giavis; Evangelos Baltas
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Paper Abstract

The purpose of this research work is the analysis of a number of precipitation events, using the RD-69 Joss-Waldvogel Disdrometer measurements. This instrument measures the raindrop size distributions continuously and automatically by transforming the vertical momentum of an impacting raindrop, whose amplitude is a function of the drop diameter. The range of drop diameters varies from 0.3 mm to 5.6 mm (dividing them into 20 channels). The knowledge of drop size distributions in rain is of importance in precipitation physics and radar hydrology and is used to estimate various hydrometeorological parameters, such as rainfall rate R, and radar reflectivity factor Z. Four different equations for the final falling velocity (Vt), depending on the diameter, were used and evaluated based on the Z-R relationships.

Paper Details

Date Published: 6 September 2017
PDF: 7 pages
Proc. SPIE 10444, Fifth International Conference on Remote Sensing and Geoinformation of the Environment (RSCy2017), 104441H (6 September 2017); doi: 10.1117/12.2279610
Show Author Affiliations
Elissavet Feloni, National Technical Univ. of Athens (Greece)
Konstantinos Kotsifakis, National Technical Univ. of Athens (Greece)
Nikolaos Dervos, National Technical Univ. of Athens (Greece)
George Giavis, National Technical Univ. of Athens (Greece)
Evangelos Baltas, National Technical Univ. of Athens (Greece)


Published in SPIE Proceedings Vol. 10444:
Fifth International Conference on Remote Sensing and Geoinformation of the Environment (RSCy2017)
Kyriacos Themistocleous; Silas Michaelides; Giorgos Papadavid; Vincent Ambrosia; Gunter Schreier; Diofantos G. Hadjimitsis, Editor(s)

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