Literaturrecherche und Analyse der Bewirtschaftungspläne von 18 deutschen und europäischen Flussgebietseinheiten. Der Bericht untersucht inwieweit die zu erwartenden Auswirkungen des Klimawandels in die ökonomischen Analysen gemäß Wasserrahmenrichtlinie integriert wurden.
Der vorliegende Bericht befasst sich mit der Analyse und Prognose der Potenziale der oberflächennahen Geothermie an der deutschen Ostseeküste. Dabei wurde folgende Vorgehensweise gewählt:
1. Erläuterungen zur Geothermie und ihren Potenzialparametern
2. Betrachtung des Klimas und des Klimawandels an der deutschen Ostseeküste
3. Ermittlung eventueller Veränderungen der Potenzialparameter durch den Klimawandel und Schlussfolgerung der Entwicklungsperspektiven geothermischer Energienutzungen aufgrund veränderter Potenzialparameter
Information about possible changes of extreme wave heights are essential for the future safe design of coastal and flood protection structures likes dykes, flood protection dunes, revetments etc. In this study, scenarios of regional climate change up to 2100 are used for the evaluation of changes of wave conditions. Analyses on calculated significant wave heights derived from extreme value statistics are showing a different signal of change for the selected locations along the German Baltic Sea Coast. The results are showing that extreme wave heights with a return level of 200 years can increase up to +14%. But also a decrease of down to -14% were found compared to actual conditions, depending on the location and climate change scenario applied. At the location of Warnemünde a slight increasing trend for the change of extreme wave heights could be found for 3 of 4 scenario runs with a maximum increase of +7%.
Das Poster zur RADOST-Abschlusskonferenz im April 2014 fasst Ergebnisse des RADOST-Fokusthemas Erneuerbare Energien zusammen. Als Beispiel wird die oberflächennahe Geothermie besonders berücksichtigt.
Over the last decades, Fucus vesiculosus, an ecologically important macroalga in the German Baltic Sea, has shown a massive retreat from the deeper zones of its former distribution presumably due to low light co-acting with other potential stressors such as high temperature, fouling, and grazing. Global warming may increase abiotic as well as biotic pressures and exacerbate environmental conditions in coastal ecosystems. The present study focussed on the effects of single or subsequently combined stressors on survival and palatability of juvenile F. vesiculosus. Fucoid offspring were exposed to high temperature and/ or feeding pressure. Feeding preference of Idotea baltica was quantified in a pellet assay calculated as an odds ratio. High temperature significantly impaired the survival of juvenile fucoids. Neither single nor combined stress considerably influenced the feeding preference of I. baltica. Surprisingly I. baltica strictly avoided pellets with juvenile F. vesiculosus compared to adult F. vesiculosus. Avoidance tended to be less pronounced in juvenile fucoids previously stressed by high temperature. Obviously grazing does not induce anti-herbivore defence, but rather the young plants appeared constitutively well-protected against isopod feeding. These results contradict the prevailing opinion that juvenile F. vesiculosus is more susceptible to herbivore grazing than adult F. vesiculosus.
Die potenzielle Winterverbreitung der Eisente in Abhängigkeit von der
Eisbedeckung und der Wassertiefe wird vor dem Hintergrund des Klimawandels analysiert und es werden Prognosen für das Jahr 2100 aufgestellt.
Überblick über Charakteristika des Seegrases und der Seegraswiesen, ihre Verbreitung, Ökosystemleistungen und Gefährdung unter besonderer Berücksichtigung des Klimawandels.
This work deal with a comparison between the common
"bathtub method" and a state-of-the-art hydrodynamic model, called MIKE21 HD Flow Model, for modelling storm surges. The aim of this study is to work out the differences between both approaches and to find out how probable differences look like. There is the question if the "bathtub method" represents flooding adequate or, if the consideration of physics by hydrodynamic models makes a major difference and displays maybe the "real" risk of
inundations. This work tries to underline the differences between those two approaches, where the strengths and weaknesses are and what influence those differences have for an inundation analysis. The investigation was made on a digital elevation model for the study area of Kiel, the capital city of the state Schleswig-Holstein in Germany. The two approaches were made on data for a small storm surge on the basis of water-level-change and wind-regime data from 2010.
As a gateway between ground and sea transportation, and as
a business location for service and industry, ports are of great significance for the regional and national economy. At the same time, port structures are located in regions threatened by storms and rising sea levels. Due to highly interdependent value chains,weather related disruptions in port operation can cause serious economic damage. Thus, adaptation to possible climate impacts seems like an obvious task for port authorities. The article analyses the climate vulnerability of German Baltic port locations.