Influence of hydrometeorological hazards and sea coast morphodynamics on development of &lt;i&gt;Cephalanthero&lt;/i&gt; &lt;i&gt;rubrae-Fagetum&lt;/i&gt; (Wolin island, the southern Baltic Sea)

Abstract. Climate changes, sea transgression and sea coast erosion observed today cause dynamic changes in coastal ecosystems. In the elaboration, cause and effect interrelations between abiotic hazards (hydrometeorological conditions and sea coast morphodynamics) and biotic (Cephalanthero rubrae-Fagetum phytocoenosis) components of natural environment have been defined. An up-to-date phytosociological analysis of a very valuable Cephalanthero rubrae-Fagetum site on cliff tableland was conducted in the context of hitherto temporal variability of climatic conditions and the rate of cliff coast recession. Also, the development prognosis of the researched site in the 21st century is provided, with respect to the expected climate changes and cliff's morphodynamics. The conducted research actions revealed the influence of global hazards (e.g. climate changes, sea transgression and sea coast erosion) on changes in the natural environment on regional scale (with the example of the site of Cephalanthero rubrae-Fagetum on a cliff coast of Wolin island in Poland). It has been established that in the 21st century, a relatively larger hazard to the functioning of the researched site is climate changes (i.e. mostly changes in thermal and precipitation conditions) not the sea coast erosion.

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Influence of Hydrometeorological Hazards and Sea Coast Morphodynamics onto Unique Coastal Vegetation Sites Development – Cephalanthero rubrae – Fagetum on Wolin Island (the Southern Baltic Sea)

10.5194/nhess-2020-160 ◽

2020 ◽

Author(s):

Jacek Tylkowski ◽

Marcin Winowski ◽

Marcin Hojan ◽

Paweł Czyryca ◽

Mariusz Samołyk

Keyword(s):

21St Century ◽

Natural Environment ◽

Temporal Variability ◽

Climate Changes ◽

Regional Scale ◽

Climatic Conditions ◽

Coastal Vegetation ◽

Dynamic Changes ◽

Hydrometeorological Conditions ◽

Sea Coast

Abstract. Climate changes, sea transgression and sea coast erosion observed today cause dynamic changes in coastal ecosystems. In the elaboration, cause and effect interrelations between abiotic hazards (hydrometeorological conditions and sea coast morphodynamics) and biotic (Cephalanthero rubrae – Fagetum phytocoenosis) components of natural environment have been defined. An up-to-date phytosociological analysis of a very valuable Cephalanthero rubrae – Fagetum site on cliff tableland was conducted in the context of hitherto temporal variability of climatic conditions and the rate of cliff coast recession. Also, the development prognosis of the researched site in the 21st century is provided, with respect to the expected climate changes and cliff's morphodynamics. The conducted research actions revealed the influence of global hazards (e.g., climate changes, sea transgression and sea coast erosion) onto changes in natural environment on regional scale (with the example of the site of Cephalanthero rubrae – Fagetum on cliff coast of Wolin Island in Poland). It has been established that in the 21st century, a relatively larger hazard to the functioning of the researched site are climate changes, not the sea coast erosion.

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Observed Changes in Long-Term Climatic Conditions and Inner-Regional Differences in Urban Regions of the Baltic Sea Coast

Atmospheric and Climate Sciences ◽

10.4236/acs.2013.32018 ◽

2013 ◽

Vol 03 (02) ◽

pp. 165-176 ◽

Cited By ~ 5

Author(s):

Michael Richter ◽

Sonja Deppisch ◽

Hans Von Storch

Keyword(s):

Baltic Sea ◽

Regional Differences ◽

Climatic Conditions ◽

The Baltic Sea ◽

Urban Regions ◽

The Baltic ◽

Sea Coast

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Future Changes in Wave Conditions at the German Baltic Sea Coast Based on a Hybrid Approach Using an Ensemble of Regional Climate Change Projections

Water ◽

10.3390/w13020167 ◽

2021 ◽

Vol 13 (2) ◽

pp. 167

Author(s):

Norman Dreier ◽

Edgar Nehlsen ◽

Peter Fröhle ◽

Diana Rechid ◽

Laurens M. Bouwer ◽

...

Keyword(s):

21St Century ◽

Wind Wave ◽

Regional Climate ◽

Hybrid Approach ◽

Wave Modelling ◽

Long Term Changes ◽

Mean Wave Period ◽

Wave Conditions ◽

Sea Coast

In this study, the projected future long-term changes of the local wave conditions at the German Baltic Sea coast over the course of the 21st century are analyzed and assessed with special focus on model agreement, statistical significance and ranges/spread of the results. An ensemble of new regional climate model (RCM) simulations with the RCM REMO for three RCP forcing scenarios was used as input data. The outstanding feature of the simulations is that the data are available with a high horizontal resolution and at hourly timesteps which is a high temporal resolution and beneficial for the wind–wave modelling. A new data interface between RCM output data and wind–wave modelling has been developed. Suitable spatial aggregation methods of the RCM wind data have been tested and used to generate input for the calculation of waves at quasi deep-water conditions and at a mean water level with a hybrid approach that enables the fast compilation of future long-term time series of significant wave height, mean wave period and direction for an ensemble of RCM data. Changes of the average wind and wave conditions have been found, with a majority of the changes occurring for the RCP8.5 forcing scenario and at the end of the 21st century. At westerly wind-exposed locations mainly increasing values of the wind speed, significant wave height and mean wave period have been noted. In contrast, at easterly wind-exposed locations, decreasing values are predominant. Regarding the changes of the mean wind and wave directions, westerly directions becoming more frequent. Additional research is needed regarding the long-term changes of extreme wave events, e.g., the choice of a best-fit extreme value distribution function and the spatial aggregation method of the wind data.

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