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Analysis of 50-year wind data of the Southern Baltic Sea for modelling coastal morphological evolution – a case study from the Darss-Zingst Peninsula

100%

Zhang W., Harff J., Schneider R.

Oceanologia

2011

tom 53

nr (1-TI)

High-resolution wind series in the southern Baltic Sea for the period of 1958–2007 are analysed to generate representative climate input conditions for a multi-scale morphodynamic model to simulate decadal-to-centennial coastline change. Four seasonal wind classes, each characterized by a predominant distribution of wind direction and speed, are derived from statistical analysis. Further calibration of this statistical description is done by sensitivity studies of the model to generate similar coastline changes of the Darss-Zingst peninsula as the measured data for the last century. The coastline change of this area is then projected for the next 300 years based on four different climate scenarios, through which impacts of accelerated sea level rise and storm frequency on the long-term coastline change are quantified.

Geomorphology and superficial bottom sediments of Khao Lak coastal area [SW Thailand]

100%

Di G. I., Choowong M., Phantuwongraj S.

Polish Journal of Environmental Studies

2009

tom 18

nr 1

111-121

Submerged and subaerial coastal morphology, nature and distribution of bottom sediments are among the key factors influencing the environmental impact by tsunami. Here we show our results of the post 2004 tsunami surveys in both offshore and nearshore zones. After the 26 December 2004 Indian Ocean tsunami, new bathymetric map and beach profile measurement along Khao Lak area, SW Thailand were made in 2006. Sedimentological analysis data of 144 bottom sediment samples together with many observation sites by scuba diving and the echosounder profiles were used for creating a detailed map of sediments and rocky bottoms in this area, with a basis scale of 1:30,000. Bottom morphology of the offshore bathymetry, sediment features and distribution patterns in relation to the nature of run-up heights are also discussed. As a result, bottom morphology shows the tsunami impact and run-up reflect the different nature of each contiguous coastal area, and explains how the coastal stretches that were eroded by the tsunami waves were almost fully restored by natural processes of sediment redistribution two years after the catastrophic event.

Ograniczanie wyników

1 Oceanologia

1 Polish Journal of Environmental Studies

1 Choowong M.

1 Di G. I.

1 Harff J.

1 Phantuwongraj S.

1 Schneider R.

1 Zhang W.

1 2011

1 2009

Wyniki wyszukiwania

Analysis of 50-year wind data of the Southern Baltic Sea for modelling coastal morphological evolution – a case study from the Darss-Zingst Peninsula

Geomorphology and superficial bottom sediments of Khao Lak coastal area [SW Thailand]