Consequences resulting from future Climate Change may be one of the most severe threats for people and economies in many countries of the world. Besides the problem of sea level rise, also possible general changes in the frequency and intensity of storms as well as general changes in the average wind field are expected for the future. With respect to the coastal protection possible future strategies and also possible future measures are analyzed and assessed with the result that technical, morphological, socio-economic and aesthetical aspects play a role.
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 RADOST-Projekt zielt darauf ab, zur Entwicklung von Anpassungsstrategien an den Klimawandel an der deutschen Osteeküste beizutragen. Das Forschungsprojekt soll dabei auch Dialogprozesse vor Ort anstoßen, um die Erarbeitung von Anpassungsstrategien voranzutreiben und zu koordinieren. Dafür wurde analysiert, welche Akteure vor Ort relevant sind (und bspw. Gestaltungskompetenzen haben) oder als relevant empfunden werden (also Einfluss auf Wahrnehmung und Einstellung haben), welche Akteure welche Kompetenzen haben und welche Haltungen die Akteure zum Klimawandel haben.
Die Herausforderung nachhaltiger Aquakultur besteht in dem Gewinn hoher Erträge auf geringer Fläche ohne Überlastung natürlicher Systeme. Veränderte Winter- und Sommertemperaturen durch den Klimawandel erfordern Anpassungsstrategien, vor allem in der Auswahl geeigneter Arten.
Der Bericht beschreibt die Aktivitäten des Projekts RADOST in den fünf Modulen „Netzwerk und Dialog“, „Natur- und ingenieurwissenschaftliche Forschung“, „Sozio-ökonomische Analyse“, „Nationaler und europäischer Politikrahmen/ nationaler und internationaler Austausch“ und „Kommunikation und Verbreitung der Ergebnisse“.
A reestablishment of Fucus vesiculosus where it is locally vanished would be an indicator for improved water quality. Thus the Agency for Agriculture, Environment and Rural Areas of Schleswig - Holstein (LLUR) is thinking about opportunities to resettle F. vesiculosus. On behalf of RADOST project, the tolerance of early fucoid life stages towards thermal stress was analysed and after four days of thermal treatment a high percentage of the treated fucoid offspring survived. It might be that inside species genotypes exist which are less sensitive against future environmental changes.
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. In shallow water F. vesiculosus may be exposed to high water temperatures during summer seasons. Intensity and frequency of heat waves are expected to increase due to climate change which could potentially affect all fucoid life stages. Early life stage processes (fertilization, germination) are often considered particularly sensitive to stress. If the mortality caused by a first heat wave in a genetically diverse population selects for stress resistance, we would expect the survivors to be less sensitive to a second heat wave or possibly even to other stressors like feeding pressure.
In the present study, the mortality of early post-settlement stages of F. vesiculosus under thermal stress and the sensitivity of survived recruits against a proximate stressor (feeding pressure, second heat wave) were analysed by laboratory experiments. The mortality of early fucoid life stages at 25°C, compared to their mortality at 15°C was significantly higher. Regrettably, the ensuing assessment of feeding impact by Idotea baltica and Hydrobia ulvae on the surviving germlings could not be analysed since the two consumer species unexpectedly avoided feeding on the young stages of F. vesiculosus. During the second thermal stress experiment fucoid offspring which was genetically preselected by high temperature (first heat wave: 25°C) differed not significantly in sensitivity from fucoid offspring without prior stress.
Inhalt:
Regionale Aktivitäten:
Workshop: Küstenwandel als soziale, kulturelle und raumplanerische Herausforderung;
RADOST auf Tour: Ostseeküste 2100 – auf dem Weg zu regionaler Klimaanpassung;
Monitoring der Umweltbedingungen im Küstenvorfeld;
Überregionale Aktivitäten:
Ausgezeichnete Klimaanpassung;
Internationale Aktivitäten:
RADOST im Gespräch mit Küstenplanern in den USA;
Kurzfilm: Anpassung an den Klimawandel – Deutschland,
Polen und die baltischen Staaten;
Publikationen:
Analysen zur Wahrnehmung von Klimawandel an der deutschen Ostsee;
RADOST-Studien zu künstlichen Riffen
Content:
Regional Activities:
Workshop: Coastal Change as a Challenge for Society, Culture, and Spatial Planning;
RADOST on Tour: Baltic Sea Coast 2100 – On the Way to Regional Climate Adaptation;
Monitoring the Environmental Conditions in the Nearshore Area;
National Activities:
Outstanding Climate Adaptation;
International Activities:
RADOST in Exchange with Coastal Planners in the USA;
Short Film on Climate Change Adaptation in Germany, Poland,
and the Baltic States;
Publications:
Analyses of the Perception of Climate Change Along the
German Baltic Sea Coast;
RADOST Studies on Artificial Reefs