Conventional radars, used for atmospheric remote sensing, usually operate at a single polarization and frequency to estimate storm parameters such as rainfall and water content. Because of the complex structure of hydrometeors conventional radars do not succeed in obtaining detailed information because they just use horizontal reflectivity. For these reasons, the potentiality of the dual polarized weather radar is investigated, in order to have better rainfall estimates and more thorough ground-clutter removal, using horizontal and differential reflectivity at the same time. In this light, a radar meteorology campaign was conducted over the city of Rome (Italy), using measurements collected by the polarimetric Doppler radar Polar55C located in the South-East of the city at a distance of 15 km from the downtown and by a raingauge network. The goodness of the results is tested by comparison of radar rainfall estimates with raingauges rainfall measurements.
Rainfall estimates and ground-clutter removal by dual polarization weather radar / E., Gorgucci; Lombardo, Federico; Napolitano, Francesco; Russo, Fabio; G., Scialanga. - ELETTRONICO. - (2005). (Intervento presentato al convegno 7th EGU Plinius Conference on Mediterranean Storms tenutosi a Rethymnon, Greece nel 5-7 October 2005).
Rainfall estimates and ground-clutter removal by dual polarization weather radar
LOMBARDO, FEDERICO;NAPOLITANO, Francesco;RUSSO, FABIO;
2005
Abstract
Conventional radars, used for atmospheric remote sensing, usually operate at a single polarization and frequency to estimate storm parameters such as rainfall and water content. Because of the complex structure of hydrometeors conventional radars do not succeed in obtaining detailed information because they just use horizontal reflectivity. For these reasons, the potentiality of the dual polarized weather radar is investigated, in order to have better rainfall estimates and more thorough ground-clutter removal, using horizontal and differential reflectivity at the same time. In this light, a radar meteorology campaign was conducted over the city of Rome (Italy), using measurements collected by the polarimetric Doppler radar Polar55C located in the South-East of the city at a distance of 15 km from the downtown and by a raingauge network. The goodness of the results is tested by comparison of radar rainfall estimates with raingauges rainfall measurements.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
