1. The living lab method (German: "Reallabor") is a proven tool from sustainability research. Alt... more 1. The living lab method (German: "Reallabor") is a proven tool from sustainability research. Although it offers a lot of potential for application to complex challenges in marine conservation, it has scarcely been used in this context so far. 2. This article presents the project "Reallabor Eckernförder Bucht 2030", which is the first living lab addressing the areas of sea, coast and land together. The project was developed in co-design between science, ministries and other stakeholders. It was possible to show that the Living lab method is suitable for a multi-stakeholder dialogue with many interlinked challenges, e.g. agriculture, fisheries, nature protection and tourism. The living lab method is suitable for addressing complex challenges addressing the areas of sea, coast and land together in a geographically limited space. A cooperation between science, society and administration helps to tackle environmental problems by identifying solutions that a) have a high societal acceptance, b) are based on interdisciplinary scientific knowledge, and c) fulfil administrative rules and conditions. The "Reallabor Eckernförder Bucht 2030" serves as a blueprint for projects also on international level.
... Florida Winter 1996 An Artificial Longshore Bar at the West Coast of the Island of Sylt/Germa... more ... Florida Winter 1996 An Artificial Longshore Bar at the West Coast of the Island of Sylt/German Bight-First Experiences K. Ahrendt and R. Koister ... AHRENDT, K. and K()STER, R., 1996. An artificial longshore bar at the west coast of the island of Sylt/German Bight-first experiences. ...
Los acantilados desarrollados en la localidad de Las Grutas, al N del golfo San Matías, represent... more Los acantilados desarrollados en la localidad de Las Grutas, al N del golfo San Matías, representan uno de los ambientes más particulares del litoral argentino. Los factores que han condicionado su particular evolución están relacionados con los procesos litorales, la meteorización, la litología, cambios del nivel del mar, escurrimientos subterráneos y superficiales y remoción en masa, entre los más importantes. Si bien existe una percepción de parte de la población de que los mismos están retrocediendo de manera alarmante, no se han observado procesos erosivos importantes que sustenten estas apreciaciones. Se considera que las condiciones litológicas heterogéneas del frente acantilado, han condicionado el escurrimiento subterráneo, haciendo más propensos los sectores finamente estratificados a la erosión, encontrando el mar una situación más favorable para los procesos mecánicos e hidráulicos. Asimismo, se considera que el sector de los acantilados donde se desarrollan las cavernas...
Los acantilados desarrollados en la localidad de Las Grutas, al N del golfo San Matias, represent... more Los acantilados desarrollados en la localidad de Las Grutas, al N del golfo San Matias, representan uno de los ambientes mas particulares del litoral argentino. Los factores que han condicionado su particular evolucion estan relacionados con los procesos litorales, la meteorizacion, la litologia, cambios del nivel del mar, escurrimientos subterraneos y superficiales y remocion en masa, entre los mas importantes. Si bien existe una percepcion de parte de la poblacion de que los mismos estan retrocediendo de manera alarmante, no se han observado procesos erosivos importantes que sustenten estas apreciaciones. Se considera que las condiciones litologicas heterogeneas del frente acantilado, han condicionado el escurrimiento subterraneo, haciendo mas propensos los sectores finamente estratificados a la erosion, encontrando el mar una situacion mas favorable para los procesos mecanicos e hidraulicos. Asimismo, se considera que el sector de los acantilados donde se desarrollan las cavernas...
Marine aquaculture is facing a variety of competing uses in densely populated coastal areas such ... more Marine aquaculture is facing a variety of competing uses in densely populated coastal areas such as the coast of Kiel Bay. Thus, a major barrier for extending the marine aquaculture business could be the lack of suitable space for “offshore farming”. Moreover, in public opinion the aquaculture sector is often associated with a negative image derived from environmental concerns. It might therefore be expected that planning aquaculture installations in Kiel Bay & Fjord would face resistance both from other offshore stakeholders and the public. This study therefore addressed the question whether arguments and criteria can be found that may contribute to a greater support and positive image of local aquaculture enterprise, thus fostering political support for this sector as well. Indeed, a widespread regional survey showed less public reservation towards aqua-cultural business in Kiel Fjord than initially expected. However, expanding the entrepreneurship in the regional aqua-cultural sector will only be successful if the installations can avoid a significant deterioration of the water quality in Kiel Fjord, e.g. through excessive emissions of nutrients from net cages. An important step forward toward this goal is the concept of IMTA = Integrated Multi-Trophic Aquaculture. The IMTA concept spatially integrates nutrient emitting installations such as fish net cages with installations of nutrient extracting organisms, e.g. mussels and algae. Based on spatial analyses of marine environmental parameters and through modelling of nutrient mass balances (emitted versus extracted nutrient quantities) possible locations, types and sizes of aquaculture installations can be determined.
The promoted erection and operation of wind power plants in offshore regions causes severe impact... more The promoted erection and operation of wind power plants in offshore regions causes severe impacts on the abiotic and biotic marine system. These influences can cause long-term changes in the local hydrographic and morphological regime. These effects can be divided into constructional and operational induced impacts, like turbidity within the water column or modified currents and sea bed erosion. Hence a numerical modelling was carried out which involves real data of a certain windpark area to simulate possible effects of wind power plants on the North Sea system. Based on the hydrodynamic model, which integrates field data from the DanTysk investigation area, a modelling was carried out to simulate the spreading of suspended sediment discharged by dredging/coring. The transport of sea bed sediments was also simulated to identify significant scours around the foundations. These models were applied on two different scales, on the one hand for the whole offshore wind farm and on the o...
This paper describes a multidisciplinary German project dealing with the expected reaction of nat... more This paper describes a multidisciplinary German project dealing with the expected reaction of natural and social conditions on the island of Sylt (North Frisian Islands, German North Sea). Climate change, i. e. increasing of the mean sea level (MSL) and storm activity, will influence the coastal development of sandy islands like Sylt. To estimate the influence of climate change a numerical model was used to predict the development of the coastline of Sylt island. Data of coastal retreat are available from 1876 to 1997 and were measured each 500 m longshore (~70 profiles). Wave data are available from 1986 to 1997. The model was calibrated and verified with these data. The coastal retreat was calculated to the year 2050 under the following scenarios (International Panel on Climate Change, IPCC): MSL +25cm; tidal range +25cm; wave height +10%; wave direction ± 10°. Accordingly, little changes in the Sylt coastline configuration over the next 50y are expected when the modern strategy (...
Der englischsprachige Bericht, der als Bachelor-Arbeit an der Universitat Kiel eingereicht wurde,... more Der englischsprachige Bericht, der als Bachelor-Arbeit an der Universitat Kiel eingereicht wurde, geht der Frage nach, wie das Verstandnis von Uberflutungen an der Ostsee im Zeichen von Klimaveranderungen verbessert werden kann. Hierzu wurde die herkommliche „bathtub method“ mit dem hydrodynamischen Modell „MIKE21 HD Flow Model“ verglichen. Die Stadt Kiel diente dabei als Fallstudie und eine leichte Sturmflut aus dem Jahr 2010 wurde als Datenbasis fur Wasserstande und Windregime gewahlt. Die Ergebnisse der beiden Verfahren unterschieden sich erheblich voneinander. Die Studie empfiehlt, hydrodynamische Modelle verstarkt in Erganzung zu anderen Methoden einzusetzen, um Vergleichsdaten zu gewinnen.
1. The living lab method (German: "Reallabor") is a proven tool from sustainability research. Alt... more 1. The living lab method (German: "Reallabor") is a proven tool from sustainability research. Although it offers a lot of potential for application to complex challenges in marine conservation, it has scarcely been used in this context so far. 2. This article presents the project "Reallabor Eckernförder Bucht 2030", which is the first living lab addressing the areas of sea, coast and land together. The project was developed in co-design between science, ministries and other stakeholders. It was possible to show that the Living lab method is suitable for a multi-stakeholder dialogue with many interlinked challenges, e.g. agriculture, fisheries, nature protection and tourism. The living lab method is suitable for addressing complex challenges addressing the areas of sea, coast and land together in a geographically limited space. A cooperation between science, society and administration helps to tackle environmental problems by identifying solutions that a) have a high societal acceptance, b) are based on interdisciplinary scientific knowledge, and c) fulfil administrative rules and conditions. The "Reallabor Eckernförder Bucht 2030" serves as a blueprint for projects also on international level.
... Florida Winter 1996 An Artificial Longshore Bar at the West Coast of the Island of Sylt/Germa... more ... Florida Winter 1996 An Artificial Longshore Bar at the West Coast of the Island of Sylt/German Bight-First Experiences K. Ahrendt and R. Koister ... AHRENDT, K. and K()STER, R., 1996. An artificial longshore bar at the west coast of the island of Sylt/German Bight-first experiences. ...
Los acantilados desarrollados en la localidad de Las Grutas, al N del golfo San Matías, represent... more Los acantilados desarrollados en la localidad de Las Grutas, al N del golfo San Matías, representan uno de los ambientes más particulares del litoral argentino. Los factores que han condicionado su particular evolución están relacionados con los procesos litorales, la meteorización, la litología, cambios del nivel del mar, escurrimientos subterráneos y superficiales y remoción en masa, entre los más importantes. Si bien existe una percepción de parte de la población de que los mismos están retrocediendo de manera alarmante, no se han observado procesos erosivos importantes que sustenten estas apreciaciones. Se considera que las condiciones litológicas heterogéneas del frente acantilado, han condicionado el escurrimiento subterráneo, haciendo más propensos los sectores finamente estratificados a la erosión, encontrando el mar una situación más favorable para los procesos mecánicos e hidráulicos. Asimismo, se considera que el sector de los acantilados donde se desarrollan las cavernas...
Los acantilados desarrollados en la localidad de Las Grutas, al N del golfo San Matias, represent... more Los acantilados desarrollados en la localidad de Las Grutas, al N del golfo San Matias, representan uno de los ambientes mas particulares del litoral argentino. Los factores que han condicionado su particular evolucion estan relacionados con los procesos litorales, la meteorizacion, la litologia, cambios del nivel del mar, escurrimientos subterraneos y superficiales y remocion en masa, entre los mas importantes. Si bien existe una percepcion de parte de la poblacion de que los mismos estan retrocediendo de manera alarmante, no se han observado procesos erosivos importantes que sustenten estas apreciaciones. Se considera que las condiciones litologicas heterogeneas del frente acantilado, han condicionado el escurrimiento subterraneo, haciendo mas propensos los sectores finamente estratificados a la erosion, encontrando el mar una situacion mas favorable para los procesos mecanicos e hidraulicos. Asimismo, se considera que el sector de los acantilados donde se desarrollan las cavernas...
Marine aquaculture is facing a variety of competing uses in densely populated coastal areas such ... more Marine aquaculture is facing a variety of competing uses in densely populated coastal areas such as the coast of Kiel Bay. Thus, a major barrier for extending the marine aquaculture business could be the lack of suitable space for “offshore farming”. Moreover, in public opinion the aquaculture sector is often associated with a negative image derived from environmental concerns. It might therefore be expected that planning aquaculture installations in Kiel Bay & Fjord would face resistance both from other offshore stakeholders and the public. This study therefore addressed the question whether arguments and criteria can be found that may contribute to a greater support and positive image of local aquaculture enterprise, thus fostering political support for this sector as well. Indeed, a widespread regional survey showed less public reservation towards aqua-cultural business in Kiel Fjord than initially expected. However, expanding the entrepreneurship in the regional aqua-cultural sector will only be successful if the installations can avoid a significant deterioration of the water quality in Kiel Fjord, e.g. through excessive emissions of nutrients from net cages. An important step forward toward this goal is the concept of IMTA = Integrated Multi-Trophic Aquaculture. The IMTA concept spatially integrates nutrient emitting installations such as fish net cages with installations of nutrient extracting organisms, e.g. mussels and algae. Based on spatial analyses of marine environmental parameters and through modelling of nutrient mass balances (emitted versus extracted nutrient quantities) possible locations, types and sizes of aquaculture installations can be determined.
The promoted erection and operation of wind power plants in offshore regions causes severe impact... more The promoted erection and operation of wind power plants in offshore regions causes severe impacts on the abiotic and biotic marine system. These influences can cause long-term changes in the local hydrographic and morphological regime. These effects can be divided into constructional and operational induced impacts, like turbidity within the water column or modified currents and sea bed erosion. Hence a numerical modelling was carried out which involves real data of a certain windpark area to simulate possible effects of wind power plants on the North Sea system. Based on the hydrodynamic model, which integrates field data from the DanTysk investigation area, a modelling was carried out to simulate the spreading of suspended sediment discharged by dredging/coring. The transport of sea bed sediments was also simulated to identify significant scours around the foundations. These models were applied on two different scales, on the one hand for the whole offshore wind farm and on the o...
This paper describes a multidisciplinary German project dealing with the expected reaction of nat... more This paper describes a multidisciplinary German project dealing with the expected reaction of natural and social conditions on the island of Sylt (North Frisian Islands, German North Sea). Climate change, i. e. increasing of the mean sea level (MSL) and storm activity, will influence the coastal development of sandy islands like Sylt. To estimate the influence of climate change a numerical model was used to predict the development of the coastline of Sylt island. Data of coastal retreat are available from 1876 to 1997 and were measured each 500 m longshore (~70 profiles). Wave data are available from 1986 to 1997. The model was calibrated and verified with these data. The coastal retreat was calculated to the year 2050 under the following scenarios (International Panel on Climate Change, IPCC): MSL +25cm; tidal range +25cm; wave height +10%; wave direction ± 10°. Accordingly, little changes in the Sylt coastline configuration over the next 50y are expected when the modern strategy (...
Der englischsprachige Bericht, der als Bachelor-Arbeit an der Universitat Kiel eingereicht wurde,... more Der englischsprachige Bericht, der als Bachelor-Arbeit an der Universitat Kiel eingereicht wurde, geht der Frage nach, wie das Verstandnis von Uberflutungen an der Ostsee im Zeichen von Klimaveranderungen verbessert werden kann. Hierzu wurde die herkommliche „bathtub method“ mit dem hydrodynamischen Modell „MIKE21 HD Flow Model“ verglichen. Die Stadt Kiel diente dabei als Fallstudie und eine leichte Sturmflut aus dem Jahr 2010 wurde als Datenbasis fur Wasserstande und Windregime gewahlt. Die Ergebnisse der beiden Verfahren unterschieden sich erheblich voneinander. Die Studie empfiehlt, hydrodynamische Modelle verstarkt in Erganzung zu anderen Methoden einzusetzen, um Vergleichsdaten zu gewinnen.
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