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| Titel |
Statistical Analysis of 2D-Video Disdrometer Measurements and Errors of Polarimetric Rainfall Estimators |
| VerfasserIn |
J. Kalogiros, M. Anagnostou, E. Anagnostou, A. Papadopoulos |
| Konferenz |
EGU General Assembly 2009
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 11 (2009) |
| Datensatznummer |
250025796
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| Zusammenfassung |
| Rainfall characteristics in the area of Athens, Greece, for the time period of the rainy
season of 2007 – 2008 using a 2-D video disdrometer are presented. The system
operates in continuous basis at open area in the suburbs of Athens close to the sea. In
addition to the typical measurements of the system like fall velocity, horizontal
velocity, diameter and oblateness of each particle canting angle is estimated from an
analysis of recorded shape of the particles. Based on the drop size distribution the
recorded rain events are classified basically as rain from stratiform or convective
clouds. Statistical analysis of rainfall characteristics for the two rain categories is
presented. The disdrometer measurements, which make a complete description of
droplets size, shape and orientation, were used to construct rainfall estimators for
polarimetric radar reflectivity and specific differential phase measurements using the
T-matrix simulation approach. The errors of the estimators for the two different
classes of rain events are related to average rainfall characteristics of each class. |
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