DATE2016-05-31 22:59:37
IDABSTRACT20160531225937-1089
CONTACTkpapachr@phys.uoa.gr
PRESENTATIONPOSTER
INVITED0
IDSESSION1
TITLEWATERSPOUT PARENT CLOUD ATTRIBUTES BASED ON MSG SEVIRI RSS INFRARED BRIGHTNESS TEMPERATURE OVER GREECE
AUTHORSKyriakoula Papachristopoulou (1), Ioannis T. Matsangouras (1,2), Panagiotis T. Nastos (1)
AFFILIATIONS
  1. Laboratory Of Climatology And Atmospheric Environment, Department Of Geology And Geoenviroment, National And Kapodistrian University Of Athens, Athens (Greece)
  2. Hellenic National Meteorological Service, Athens (Greece)
ABSTRACTWaterspout formation is very common in the Mediterranean Sea and particularly in the northern coasts. According to recent studies, the most vulnerable area of waterspout formation in Greece encompasses the water body over south Aegean Sea, especially northwards the coasts of Heraklion city. A detailed database of waterspout events (WS) has been set up by the Laboratory of Climatology and Atmospheric Environment of the University of Athens, containing among other details the location and time of occurrence of these events, essential information for the methodology followed. The aim of the study is to investigate the temporal evolution of cloud tops associated with waterspout formation, prior and after the time of waterspout occurrence, northwards the coasts of Heraklion city from 2012 to early 2016. We examine the minimum brightness temperature around the WS location for four different examined radiuses (R1=5km, R2=10km, R3=15km, R4=25km). Brightness temperature is estimated by using channel 10.8 micrometers MSG SEVIRI Rapid Scan Service Level 1.5 Image Data product. This product provides data every five minutes and thus Cloud Top Temperature (CTT) analysis is presented for the evolution of the minimum brightness over a two-hour period, from 60 min prior and 60 min after waterspout formation.
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