Original scientific paper

Paleo-coastline of the Central Eastern Adriatic Sea, and Paleo-Channels of the Cetina and Neretva rivers during the last glacial maximum

Marjan SIKORA orcid.org/0000-0002-5374-8616 ; Faculty of Electrical Engineering, Mechanical Engineering and Naval Architecture,University of Split, Croatia
Hrvoje MIHANOVIĆ ; Hydrographic Institute of the Republic of Croatia, Split, Croatia
Ivica VILIBIĆ ; Institute of Oceanography and Fisheries, Split, Croatia

Abstract

he paper documents the use of a Digital Elevation Model (DEM) method to reconstruct paleo-channels and the paleo-coastline during the Last Glacial Maximum (LGM) in the Central Eastern
Adriatic area. We focused on the paleo-coastline and paleo-channels of the Neretva and the Cetina rivers, which were estimated from the 15’’ bathymetry available for the Adriatic Sea. While being
aware of the limitations of the method and the resolution of the bathymetry grid, we successfully reproduced the paleo-channels of both rivers. Results for the Cetina River indicate the presence of
depressions that were filled with water along its flow. The configurations of existing seabeds in the vicinity of the Cetina and Neretva River mouths indicate morphologies, similar to river mouths. The vertical profiles suggest that during the LGM the sea level was about 115 m lower than today. The total length of the Neretva riverbed was longer for about 136 km than today, and the Cetina River was approximately 154 km longer.

Keywords

paleo-coastline; paleo-riverbed; the Adriatic Sea; LGM; DEM; river network computation

Hrčak ID:

134935

URI

https://hrcak.srce.hr/134935

Publication date:

1.7.2014.

Article data in other languages: croatian

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