A Look at Amazon Basin Seasonal Dynamics with the Biophysical ...
A Look at Amazon Basin Seasonal Dynamics with the Biophysical ... A Look at Amazon Basin Seasonal Dynamics with the Biophysical ...
TEMPORAL EVOLUTION OF Z-R RELATIONSHIPS OVER PRECIPITATINGSYSTEMS DURING WETAMC/LBA & TRMM/LBARachel Ifanger AlbrechtAugusto José Pereira FilhoInstituto de Astronomia, Geofísica e Ciências AtmosféricasUniversidade de São PauloRua do Matão, 1226 – Cidade Universitária CEP 05508-900 São Paulo, SPE-mail: rachel@master.iag.usp.brThis work is concerned with the time evolution of the ZR relationship of precipitatingevents during the WETAMC and TRMM-LBA experiment in Rondônia, Brazil carried out betweenJanuary and February 1999. Particularly, five squall lines were analyzed. The results indicate thatmost events are characterized by three distinct ZR relationships during the life cycle of suchsystems. Disdrometer estimations and weather radar measurements of the reflectivity factor showgood agreement for convective rainfall and poor correlation for the stratiform type. Since the later isresponsible for nearly 50% of the total rainfall volume, one might be careful while using radarderived rainfall accumulations.
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TEMPORAL EVOLUTION OF Z-R RELATIONSHIPS OVER PRECIPITATINGSYSTEMS DURING WETAMC/LBA & TRMM/LBARachel Ifanger AlbrechtAugusto José Pereira FilhoInstituto de Astronomia, Geofísica e Ciências AtmosféricasUniversidade de São PauloRua do M<strong>at</strong>ão, 1226 – Cidade Universitária CEP 05508-900 São Paulo, SPE-mail: rachel@master.iag.usp.brThis work is concerned <strong>with</strong> <strong>the</strong> time evolution of <strong>the</strong> ZR rel<strong>at</strong>ionship of precipit<strong>at</strong>ingevents during <strong>the</strong> WETAMC and TRMM-LBA experiment in Rondônia, Brazil carried out betweenJanuary and February 1999. Particularly, five squall lines were analyzed. The results indic<strong>at</strong>e th<strong>at</strong>most events are characterized by three distinct ZR rel<strong>at</strong>ionships during <strong>the</strong> life cycle of suchsystems. Disdrometer estim<strong>at</strong>ions and we<strong>at</strong>her radar measurements of <strong>the</strong> reflectivity factor showgood agreement for convective rainfall and poor correl<strong>at</strong>ion for <strong>the</strong> str<strong>at</strong>iform type. Since <strong>the</strong> l<strong>at</strong>er isresponsible for nearly 50% of <strong>the</strong> total rainfall volume, one might be careful while using radarderived rainfall accumul<strong>at</strong>ions.
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