Coastal processes in the Russian Baltic (eastern Gulf of Finland and Kaliningrad area)

Ryabchuk, Daria; Sergeev, A. S.; Burnashev, Evgeny; Khorikov, Viktor; Neevin, Igor; Kovaleva, Olga; Budanov, Leonid; Zhamoida, Vladimir; Danchenkov, Aleksandr

doi:10.1144/qjegh2020-036

Cited by 11 publications

(8 citation statements)

References 21 publications

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“…When the approach angle exceeds a threshold of about 45 degrees (Ashton et al, 2001), the predominance of high-angle waves can lead to the explosive development of large spits and sand ridges. The growth of such structures has been observed in the eastern part of the Gulf of Finland (Ryabchuk et al, 2011b;Ryabchuk et al, 2020).…”

Section: Variability and Change Of Erosion And Sedimentationmentioning

confidence: 92%

“…Hartleib and Bobertz, 2017), and orthophoto maps (e.g., Zhang et al, 2017;Dudzinska-Nowak, 2017). Such data were used, for example, to quantify the rates of coastline change over the past decades along the sandy southern Baltic Sea coast and more recently for the Russian waters (Ryabchuk et al, 2020). Also, historical maps with scales between 1:250000 and 1:5000 dating back to the 1820s have provided useful information on the coastline change of the Baltic Sea at a longer time scale (Deng et al, 2017a;Hartleib and Bobertz, 2017).…”

Section: Sources Of Datamentioning

confidence: 99%

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Sea Level Dynamics and Coastal Erosion in the Baltic Sea Region

Weisse¹,

Dailidienė²,

Hünicke³

et al. 2021

Preprint

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Abstract. There are a large number of geophysical processes affecting sea level dynamics and coastal erosion in the Baltic Sea region. These processes operate on a large range of spatial and temporal scales and are observed in many other coastal regions worldwide. Together with the outstanding number of long data records, this makes the Baltic Sea a unique laboratory for advancing our knowledge on interactions between processes steering sea level and erosion in a climate change context. Processes contributing to sea level dynamics and coastal erosion in the Baltic Sea include the still ongoing visco-elastic response of the Earth to the last deglaciation, contributions from global and North Atlantic mean sea level changes, or from wind waves affecting erosion and sediment transport along the subsiding southern Baltic Sea coast. Other examples are storm surges, seiches, or meteotsunamis contributing primarily to sea level extremes. All such processes have undergone considerable variations and changes in the past. For example, over the past about 50 years, the Baltic absolute (geocentric) mean sea level rose at a rate slightly larger than the global average. In the northern parts, due to vertical land movements, relative sea level decreased. Sea level extremes are strongly linked to variability and changes in the large-scale atmospheric circulation. Patterns and mechanisms contributing to erosion and accretion strongly depend on hydrodynamic conditions and their variability. For large parts of the sedimentary shores of the Baltic Sea, the wave climate and the angle at which the waves approach the nearshore are the dominant factors, and coastline changes are highly sensitive to even small variations in these driving forces. Consequently, processes contributing to Baltic sea level dynamics and coastline change are expected to vary and to change in the future leaving their imprint on future Baltic sea level and coastline change and variability. Because of the large number of contributing processes, their relevance for understanding global figures, and the outstanding data availability, we argue that global sea level research and research on coastline changes may greatly benefit from research undertaken in the Baltic Sea.

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Section: Variability and Change Of Erosion And Sedimentationmentioning

confidence: 92%

Section: Sources Of Datamentioning

confidence: 99%

Sea Level Dynamics and Coastal Erosion in the Baltic Sea Region

Weisse¹,

Dailidienė²,

Hünicke³

et al. 2021

Preprint

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“…Preconditioning is associated with periods of prevailing westerly winds that increase the sea level gradient across the Danish straits. In turn, the increased sea level gradient leads to higher inflow and higher Baltic Sea water volumes (Samuelsson and Stigebrandt, 1996). While the long-term average barotropic outflow from the Baltic Sea is about 7 km 3 d −1 or 80 000 m 3 s −1 (Winsor et al, 2001), transports across the Danish straits can reach values of up to about 45 km 3 d −1 in both directions, which corresponds to a sea level change of about 12 cm d −1 over the entire Baltic Sea (Mohrholz, 2018).…”

Section: Variability and Change In Baltic Sea Level Extremesmentioning

confidence: 99%

“…Different sources of remote sensing data include satellite images (e.g., Tiepold and Schuhmacher, 1999), aerial photographs (e.g., Furmanczyk et al, 2011;Dudzinska-Nowak, 2017), terrestrial and airborne laser scanning data (e.g., Hartleib and Bobertz, 2017), and orthophoto maps (e.g., Dudzinska-Nowak, 2017). Such data were used, for example, to quantify the rates of coastline change over the past decades along the sandy southern Baltic Sea coast and more recently for the Russian waters (Ryabchuk et al, 2020). Also, historical maps with scales between 1 : 250 000 and 1 : 5000 dating back to the 1820s have provided useful information on the coastline change in the Baltic Sea at a longer timescale (Deng et al, 2017a;Hartleib and Bobertz, 2017).…”

Section: Sources Of Datamentioning

confidence: 99%

“…3. As for any semi-enclosed basin, such processes can be separated into processes that alter the volume of the Baltic Sea and/or the total amount of water in the basin, and processes that redistribute water within the Baltic Sea (Samuelsson and Stigebrandt, 1996;Svansson, 1980). From analyses of tide-gauge data and dynamical consideration, we know that processes with characteristic timescales of about half a month or longer can change the volume of the water in the Baltic Sea.…”

Section: Introductionmentioning

confidence: 99%

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Sea level dynamics and coastal erosion in the Baltic Sea region

et al. 2021

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Abstract. There are a large number of geophysical processes affecting sea level dynamics and coastal erosion in the Baltic Sea region. These processes operate on a large range of spatial and temporal scales and are observed in many other coastal regions worldwide. This, along with the outstanding number of long data records, makes the Baltic Sea a unique laboratory for advancing our knowledge on interactions between processes steering sea level and erosion in a climate change context. Processes contributing to sea level dynamics and coastal erosion in the Baltic Sea include the still ongoing viscoelastic response of the Earth to the last deglaciation, contributions from global and North Atlantic mean sea level changes, or contributions from wind waves affecting erosion and sediment transport along the subsiding southern Baltic Sea coast. Other examples are storm surges, seiches, or meteotsunamis which primarily contribute to sea level extremes. Such processes have undergone considerable variation and change in the past. For example, over approximately the past 50 years, the Baltic absolute (geocentric) mean sea level has risen at a rate slightly larger than the global average. In the northern parts of the Baltic Sea, due to vertical land movements, relative mean sea level has decreased. Sea level extremes are strongly linked to variability and changes in large-scale atmospheric circulation. The patterns and mechanisms contributing to erosion and accretion strongly depend on hydrodynamic conditions and their variability. For large parts of the sedimentary shores of the Baltic Sea, the wave climate and the angle at which the waves approach the nearshore region are the dominant factors, and coastline changes are highly sensitive to even small variations in these driving forces. Consequently, processes contributing to Baltic sea level dynamics and coastline change are expected to vary and to change in the future, leaving their imprint on future Baltic sea level and coastline change and variability. Because of the large number of contributing processes, their relevance for understanding global figures, and the outstanding data availability, global sea level research and research on coastline changes may greatly benefit from research undertaken in the Baltic Sea.

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Geoheritage of the Kaliningrad Region, SE Baltic Coast

Chlachula,

Mychko

2023

Geoheritage

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The Kaliningrad Region is physiographically a mosaic and travel-attractive part of the SE Baltic coast. The Sambia Peninsula, the geomorphically most interesting, E-W-oriented extension of the mainland, has been shaped by past dynamic processes, starting with the Precambrian tectonics, the Palaeozoic and Mesozoic sea transitions, the Last Ice Age glaciations, the post-glacial riverine network formation, and the present shoreline erosion. The complex geological and palaeogeographical history generated a broad variety of geo-forms and landscapes, relicts of which are seen from the sea coast to the mainland. Rich fossils sealed in ancient, well-stratified formations of specific lithologies, with the famous Palaeogene amber beds, provide witness of past natural settings with flourishing life forms. The great geo-diversity of the peninsula underscores its scientific value as well as national and international tourism significance, adding to the historical architectural sites of this area. Some of these geomorphologically and geologically valuable places are increasingly threatened, besides anthropogenic factors, by storm surges, gravity flows and aeolian activity, causing progressing erosion along undercut cliffs, slumping and degradation of sand dune fields, among other geo-hazards. Survey, mapping and publicity of unique geo-sites are a proviso for their registration in natural heritage programmes with the implementation of appropriate geo-environmental protection strategies in balance with land-use management. This paper outlines the scientific, educational and touristic potential of the national geoheritage in the frame of the Baltic Sea coast geo-conservation initiatives.

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Coastal processes in the Russian Baltic (eastern Gulf of Finland and Kaliningrad area)

Cited by 11 publications

References 21 publications

Sea Level Dynamics and Coastal Erosion in the Baltic Sea Region

Sea Level Dynamics and Coastal Erosion in the Baltic Sea Region

Sea level dynamics and coastal erosion in the Baltic Sea region

Geoheritage of the Kaliningrad Region, SE Baltic Coast

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