EOF analysis of the hailpad data from the polygon in Croatia (CROSBI ID 576445)
Prilog sa skupa u zborniku | sažetak izlaganja sa skupa | međunarodna recenzija
Podaci o odgovornosti
Počakal, Damir ; Večenaj, Željko
engleski
EOF analysis of the hailpad data from the polygon in Croatia
Continental part of Croatia is exposed to the thunderstorms with severe rain and hail, especially in the summer months. This area is very important in terms of agriculture. Hence, in order to document hail events in details, a hailpad polygon 30×20 km in size was installed in the north-western part of this area (Zagorje) before the hail fall season in 2002. The polygon is settled between three mountains (Fig. 1): Ivančica on the north, Medvednica on the south and Kalnik on the northeast. A dense network with 150 hail pads with linear spacing of 2 km (1 hail pad per 4 km2) was obtained. Hail parameters that are obtained from hailpads can be used in climatologically and dynamical studies of hail. In this study, we use the data gathered in the hailpad polygon within the period 2002 – 2010. We analyzed the intensity (kinetic energy, K.E.) of hail, the maximum hailstone diameter and the hail fall duration, but only the results for K.E. are shown here. The goal is to investigate what are the factors that have influence on spatial and temporal distributions of these parameters in the polygon. There are some indications that orography could have significant influence (Počakal et al. 2009). Our approach is to implement the empirical orthogonal functions (EOF) method to the data from the hailpad polygon in the above mentioned 9-years period and to inspect this hypothesis.
Hail; Hailpad polygon; Orography; EOF analysis
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Podaci o prilogu
2011.
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objavljeno
Podaci o matičnoj publikaciji
6th European Conference on Severe Storms - Extended abstracts
Podaci o skupu
6th European Conference on Severe Storms
poster
03.10.2011-07.10.2011
Palma de Mallorca, Španjolska