Modelling Coastline Change of the Darss-Zingst Peninsula with Sedsim - The Baltic Sea Basin - page 294

Fig. 14.9 The Darsser Ort after 840 years (experiment A). A west-east-directed spit has been
accumulated with two distinguishable ridges
The difference to the recent coastline (Fig. 14.3 ) is apparent. Looking at the sedi-
ment source area of Fischland, erosion is visible. There are even three inlets between
the open sea and the Bodden chain. In contradiction, the most northern site of the
Darss, the Darsser Ort, experienced accumulation. A typical spit is forming here
with a west-east elongated shape, common for coastal formations along the south-
ern Baltic Sea. A closer look to this structure (Fig. 14.9 ) suggests a sequence-like
composition. A first sequence is located right in front of the main peninsula, sepa-
rated only by a narrow inlet. This is the main spit body that is located above sea level.
A second sequence with a similar shape follows to the north, but still below the sea
level. This scheme fits well with the structure of the Neu-Darss, that is composed by
a pattern of barrier beaches with intermediate depressions (Janke and Lampe 1998 ) .
Going further eastwards, coastal regions along northern Zingst, exposed to the
open sea, have been eroded with the result of small bay-like structures, while the
Bodden chain was filled up with sediments. The results of this experiment agree
with the general understanding about erosion, transport, and accumulation for this
system, though there is rather minimal accumulation in the area of the Bock Island
that is generally considered as a major accumulation zone (Janke and Lampe 1998 ) .
The overall set-up of the second experiment B is comparable to the first simula-
tion, however, with the SEA LEVEL module switched on. As shown in Fig. 14.6 ,
the sea level rise after 840 years is about 1.4 m. This additional parameter causes
major changes in the model results (Fig. 14.8b ) . The difference to experiment A is
striking. The Zingst is no longer a coherent peninsula but rather a chain of small
islands. There are big channels between the inner Bodden and the open sea. This