Naslov
Morphological characteristics of pocket beaches with significant terrestrial sediment input (Kvarner area)

Autori
RUŽIĆ, Igor

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
6th UK Young coastal scientists and engineers conference / - , 2010

Skup
6th UK Young coastal scientists and engineers conference

Mjesto i datum
London, Ujedinjeno Kraljevstvo, 29.03.2010. - 30.03.2010

Vrsta sudjelovanja
Predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
pocket; gravel; beaches; basin

Sažetak
Most beaches on the Croatian coast are small pocket gravel beaches formed mostly by the deposition of sediment from torrential flows. These are pebble and gravel beaches (Figure 2) usually not wider than 300 m. The other sources of coarse grained material found on these beaches are cliff erosion and landfalls (Juračić at al., 2009). Morphological characteristics of pocket beaches such as beach shape, area, volume and slope are function of sediment supply, its transport paths and mechanisms responsible for potential loss (Storlazzi et al., 2000) Here morphological characteristics of pocket beaches from three different areas (Figure 1) at two largest Adriatic islands are analysed. The Krk and Cres islands are located in the north-eastern part of the Adriatic Sea and have almost the same area. Both islands are characterized by a karst geomorphology with numerous steep torrential streams (slope up to 60%). The average annual rainfall is 1100mm/year. The islands’ catchments are small and steep and contribute to sediment supply of the coastal zone during the heavy rain events usually in winter months. Hence, the origin of sediment is mainly terrestrial at the intermediate scale. The beaches analysed here are exposed to wind waves from the South, South West and North. The wave heights in the channel part of the northern Adriatic Sea are smaller (Hmax < 4, 5m) than in western open zone (Hmax ~ 6m) due to relatively short wind fetch (Tabain, 1997 ; Leder et al., 1998). The areas analysed here are mainly unmodified by human interventions, hence provide an opportunity to study natural systems.

Izvorni jezik
Engleski

Znanstvena područja
Geologija, Građevinarstvo

POVEZANOST RADA