Analysis of Joss-Waldvogel disdrometer measurements in rainfall events

Elissavet Feloni; Konstantinos Kotsifakis; Nikolaos Dervos; George Giavis; Evangelos Baltas

doi:10.1117/12.2279610

6 September 2017 Analysis of Joss-Waldvogel disdrometer measurements in rainfall events

Elissavet Feloni, Konstantinos Kotsifakis, Nikolaos Dervos, George Giavis, Evangelos Baltas

Proceedings Volume 10444, Fifth International Conference on Remote Sensing and Geoinformation of the Environment (RSCy2017); 104441H (2017) https://doi.org/10.1117/12.2279610
Event: Fifth International Conference on Remote Sensing and Geoinformation of the Environment (RSCy2017), 2017, Paphos, Cyprus

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 (V_t), depending on the diameter, were used and evaluated based on the Z-R relationships.

Citation Download Citation

Elissavet Feloni, Konstantinos Kotsifakis, Nikolaos Dervos, George Giavis, and Evangelos Baltas "Analysis of Joss-Waldvogel disdrometer measurements in rainfall events", Proc. SPIE 10444, Fifth International Conference on Remote Sensing and Geoinformation of the Environment (RSCy2017), 104441H (6 September 2017); https://doi.org/10.1117/12.2279610

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