eesti teaduste
akadeemia kirjastus
SINCE 1952
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Estonian Journal of Earth Sciences
ISSN 1736-7557 (Electronic)
ISSN 1736-4728 (Print)
Impact Factor (2021): 0.811
Storminess-related rhythmic ridge patterns on the coasts of Estonia; pp. 220–237

Ülo Suursaar, Hannes Tõnisson

Buried or elevated coastal ridges may serve as archives of past variations in sea level and climate conditions. Sometimes such ridges or coastal scarps appear in patterns, particularly on uplifting coasts with adequate sediment supply. Along the seacoasts of Estonia, where relative-to-geoid postglacial uplift can vary between 1.7 and 3.4 mm/yr, at least 27 areas with rhythmic geomorphic patterns have been identified from LiDAR images and elevation data. Such patterns were mainly found on faster emerging and well-exposed, tideless coasts. These are mostly located at heights between 1 and 21 m above sea level, the formation of which corresponds to a period of up to 7500 years. Up to approximately 150 individual ridges were counted on some cross-shore sections. Ten of these ridge patterns that formed less than 4500 years ago were chosen for detailed characterization and analysis in search of possible forcing mechanisms. Among these more closely studied cases, the mean ridge spacing varied between 19 and 28 m. Using land uplift rates from the late Holocene period, the timespans of the corresponding cross sections were calculated. The average temporal periodicity of the ridges was between 23 and 39 years with a gross mean value of 31 years. Considering the regular nature of the ridges, they mostly do not reflect single extreme events, but rather a decadal-scale periodicity in storminess in the region of the Baltic Sea. Although a contribution from some kind of self-organization process is possible, the rhythmicity in ancient coastal ridge patterns is likely linked to quasi-periodic 25−40-year variability, which can be traced to Estonian long-term sea level records and wave hindcasts, as well as in regional storminess data and the North Atlantic Oscillation index.


Allard, J., Bertin, X., Chaumillon, E. & Pouget, F. 2008. Sand spit rhythmic development: a potential record of wave climate variations? Arcay Spit, western coast of France. Marine Geology, 253, 107−131.

Anderson, A., Vilumaa, K., Tõnisson, H., Kont, A., Ratas, U. & Suuroja, S. 2014. Geomorphology of coastal formations on present and ancient sandy coasts. Journal of Coastal Research, Special Issue, 70, 90−95.

Brückner, H., Schellmann, G. & van der Borg, K. 2002. Uplifted beach ridges in northern Spitsbergen as indicators for glacio-isostasy and palaeo-oceanography. Zeitschrift für Geomorphologie, NF, 46, 309–336.

Buscombe, D. & Masselink, G. 2006. Concepts in gravel beach dynamics. Earth-Science Reviews, 79, 33–52.

Buynevich, I. V., FitzGerald, D. M. & Goble, R. J. 2007. A 1500 yr record of North Atlantic storm activity based on optically dated relict beach scarps. Geology, 35, 543–546.

Church, J. A., Clark, P. U., Cazenave, A., Gregory, J. M., Jevrejeva, S., Levermann, A., Merrifield, M. A., Milne, G. A., Nerem, R. S., Nunn, P. D., Payne, A. J., Pfeffer, W. T., Stammer, D. & Unnikrishnan, A. S. 2013. Sea level change. In Climate Change 2013: The Physical Science Basis. Contribution of Working Group I to the Fifth Assessment Report of the Intergovernmental Panel on climate Change (Stocker, T. F., Qin, D., Plattner, G.-K., Tignor, M., Allen, S. K., Boschung, J., Nauels, A., Xia, Y., Bex, V. & Midgley, P. M., eds), pp. 1137–1216. Cambridge University Press, Cambridge, United Kingdom and New York.

Cronin, T. M., Farmer, L., Marzen, R. E., Thomas, E. & Varekamp, J. C. 2014. Late Holocene sea level variability and Atlantic Meridional Overturning Circulation. Paleo­ceanography, 29, 765–777.

Ekman, M. 1996. A consistent map of the postglacial uplift of Fennoscandia. Terra Nova, 8, 158–165.

Furmańczyk, K. K., Dudzińska-Nowak, J., Furmańczyk, K. A., Paplińska-Swerpel, B. & Brzezowska, N. 2011. Dune erosion as a result of the significant storms at the western Polish coast (Dziwnow Spit example). Journal of Coastal Research, Special Issue, 64, 756−759.

Grudzinska, I., Saarse, L., Vassiljev, J. & Heinsalu, A. 2013. Mid- and late-Holocene shoreline changes along the southern coast of the Gulf of Finland. Bulletin of the Geological Society of Finland, 85, 19−34.

Gruno, A., Liibusk, A., Ellmann, A., Oja, T., Vain, A. & Jürgenson, H. 2013. Determining sea surface heights using small footprint airborne laser scanning. In Proceedings SPIE 8888, Remote Sensing of the Ocean, Sea Ice, Coastal Waters, and Large Water Regions 2013, 88880R (October 16, 2013).

Hayes, M., Michel, J. & Betenbaugh, D. 2010. The intermittently exposed, coarse-grained gravel beaches of Prince William Sound, Alaska: comparison with open-ocean gravel beaches. Journal of Coastal Research, 26, 4–30.

Hurrell, J. W., Kushnir, Y., Ottersen, G. & Visbeck, M. 2003. An overview of the North Atlantic Oscillation. In The North Atlantic Oscillation – Climatic Significance and Environmental Impact (Hurrell, J. W., Kushnir, Y., Ottersen, G. & Visbeck, M., eds), Geophysical Monograph Series, 134, 1−35.

Jaagus, J. & Suursaar, Ü. 2013. Long-term storminess and sea level variations on the Estonian coast of the Baltic Sea in relation to large-scale atmospheric circulation. Estonian Journal of Earth Sciences, 62, 73–92.

Johansson, M. & Kahma, K. K. 2016. On the statistical relationship between the geostrophic wind and sea level variations in the Baltic Sea. Boreal Environment Research, 21, 25–43.

Jones, P. D., Jónsson, T. & Wheeler, D. 1997. Extension to the North Atlantic Oscillation using early instrumental pressure observations from Gibraltar and South-West Iceland. International Journal of Climatology, 17, 1433–1450.<1433::AID-JOC203>3.0.CO;2-P

Kall, T., Liibusk, A., Wan, J. & Raamat, R. 2016. Vertical crustal movements in Estonia determined from precise levellings and observations of the level of Lake Peipsi. Estonian Journal of Earth Sciences, 65, 27–47.

Kessel, H. & Raukas, A. 1967. The Deposits of Ancylus Lake and Littorina Sea in Estonia. Valgus, Tallinn, 134 pp. [in Russian, with English summary].

Lambeck, K., Woodroffe, C. D., Antonioli, F., Anzidei, M., Gehrels, W. R., Laborel, J. & Wright, A. J. 2010. Paleo­environmental records, geophysical modelling, and reconstruction of sea level trends and variability on centennial and longer timescales. In Understanding Sea Level Rise and Variability (Church, J. A., Woodworth, P. L., Aarup, T. & Wilson, W. S., eds), pp. 61–121. Wiley-Blackwell, Hoboken, NJ, USA.

Lambeck, K., Rouby, H., Purcell, A., Sun, Y. & Sambridge, M. 2014. Sea level and global ice volumes from the Last Glacial Maximum to the Holocene. Proceedings of the National Academy of Sciences of the United States of America, 111, 15296–15303.

Landscheidt, T. 1988. Solar rotation, impulses of the torque in the Sun’s motion, and climatic variation. Climatic Change, 12, 265–295.

Muru, M., Rosentau, A., Kriiska, A., Lõugas, L., Kadakas, U., Vassiljev, J., Saarse, L., Aunap, R., Küttim, L., Puusepp, L. & Kihno, K. 2017. Sea level changes and Neolithic hunter-fisher-gatherers in the centre of Tallinn, southern coast of the Gulf of Finland, Baltic Sea. Holocene, 27, 917–928.

Nielsen, A., Murray, A., Pejrup, M. & Elberling, B. 2006. Optically stimulated luminescence dating of a Holocene beach ridge plain in Northern Jutland, Denmark. Quaternary Geochronology, 1, 305–312.

Nott, J. 2004. Palaeotempestology: the study of prehistoric tropical cyclones – a review and implications for hazard assessment. Environment International, 30, 433–447.

Nott, J., Forsyth, A., Rhodes, E. & O’Grady, D. 2015. The origin of centennial- to millennial-scale chronological gaps in storm emplaced beach ridge plains. Marine Geology, 367, 83–93.

Olsen, J., Anderson, N. J. & Knudsen, M. F. 2012. Variability of the North Atlantic Oscillation over the past 5200 years. Nature Geoscience, 5, 808–812.

Orviku, K. 1974. Seacoasts of Estonia. Tallinn, 112 pp. [in Russian, with English summary].

Orviku, K., Suursaar, Ü., Tõnisson, H., Kullas, T., Rivis, R. & Kont, A. 2009. Coastal changes in Saaremaa Island, Estonia, caused by winter storms in 1999, 2001, 2005 and 2007. Journal of Coastal Research, Special Issue, 56, 1651−1655.

Otsmann, M., Suursaar, Ü. & Kullas, T. 2001. The oscillatory nature of the flows in the system of straits and small semienclosed basins of the Baltic Sea. Continental Shelf Research, 21, 1577−1603.

Raukas, A. & Hyvärinen, H. (eds). 1992. Geology of the Gulf of Finland. Valgus, Tallinn, 422 pp. [in Russian, with English summary].

Rivis, R. 2004. Changes in shoreline positions on the Harilaid Peninsula, West Estonia, during the 20th century. Proceedings of the Estonian Academy of Sciences, Biology, Ecology, 53, 179−193.

Saarse, L., Vassiljev, J., Rosentau, A. & Miidel, A. 2007. Reconstructed late glacial shore displacement in Estonia. Baltica, 20, 35−45.

Santamaría-Gómez, A., Gravelle, M., Dangendorf, S., Marcos, M. & Wöppelmann, G. 2017. Uncertainty of the 20th century sea-level rise due to vertical land motion errors. Earth and Planetary Science Letters, 473, 24−32.

Scheffers, A. & Scheffers, S. 2006. Documentation of the impact of Hurricane Ivan on the coastline of Bonaire (Netherlands Antilles). Journal of Coastal Research, 22, 1437–1450.

Scheffers, A., Engel, M., Scheffers, S., Squire, P. & Kelletat, D. 2012. Beach ridge systems: archives for Holocene coastal events? Physical Geography, 36, 5–37.

Simpson, M. J. R., Nilsen, J. E. Ø., Ravndal, O. R., Breili, K., Sande, H., Kierulf, H. P., Steffen, H., Jansen, E., Carson, M. & Vestøl, O. 2015. Sea Level Change for Norway: Past and Present Observations and Projections to 2100. Norwegian Centre for Climate Services report 1/2015. Oslo, Norway, 156 pp.

Suursaar, Ü. 2015. Analysis of wave time series in the Estonian coastal sea in 2003−2014. Estonian Journal of Earth Sciences, 64, 289−304.

Suursaar, Ü. & Kall, T. 2017. Interpretation of relative sea level variations at tide gauges using results from four Estonian precise levellings and land uplift models. In IEEE International Geoscience and Remote Sensing Symposium (IGARSS), 2328 July 2017, Fort Worth, Texas, USA, pp. 6000–6003. IEEE.

Suursaar, Ü. & Kullas, T. 2006. Influence of wind climate changes on the mean sea level and current regime in the coastal waters of west Estonia, Baltic Sea. Oceanologia, 48, 361−383.

Suursaar, Ü., Tõnisson, H., Kont, A. & Orviku, K. 2013. Analysis of relationships between near-shore hydro­dynamics and sediment movement on Osmussaar Island, western Estonia. Bulletin of the Geological Society of Finland, 85, 35−52.

Suursaar, Ü., Jaagus, J. & Tõnisson, H. 2015. How to quantify long-term changes in coastal sea storminess? Estuarine, Coastal and Shelf Science, 156, 31–41.

Suursaar, Ü., Tõnisson, H., Alari, V., Raudsepp, U., Rästas, H. & Anderson, A. 2016. Projected changes in wave conditions in the Baltic Sea by the end of 21st century and the corresponding shoreline changes. Journal of Coastal Research, Special Issue, 75, 1012−1016.

Tamura, T. 2012. Beach ridges and prograded beach deposits as palaeoenvironment records. Earth-Science Reviews, 114, 279–297.

Tarand, A., Jaagus, J. & Kallis, A. 2013. Eesti kliima minevikus ja tänapäeval [Estonian Climate; Past and Present]. University of Tartu Publishers, Tartu, 631 pp. [in Estonian].

Taylor, M. & Stone, G. W. 1996. Beach-ridges: a review. Journal of Coastal Research, 12, 612–621.

Tõnisson, H., Suursaar, Ü., Rivis, R., Kont, A. & Orviku, K. 2013. Observation and analysis of coastal changes in the West Estonian Archipelago caused by storm Ulli (Emil) in January 2012. Journal of Coastal Research, Special Issue, 65, 832−837.

Tõnisson, H., Suursaar, Ü., Kont, A., Orviku, K., Rivis, R., Szava-Kovats, R., Vilumaa, K., Aarna, T., Eelsalu, M., Pindsoo, K., Palginõmm, V. & Ratas, U. 2014. Field experiments with different fractions of painted sediments to study material transport in three coastal sites in Estonia. Journal of Coastal Research, Special Issue, 70, 229−234.

Torim, A. 2004. About the land uplift and variation of the coastline in Estonia. Geodeet, 28, 57–62.

Vallner, L., Sildvee, H. & Torim, A. 1988. Recent crustal movements in Estonia. Journal of Geodynamics, 9, 215–223.

Vassiljev, J., Saarse, L., Grudzinska, I. & Heinsalu, A. 2015. Relative sea level changes and development of the Hiiumaa Island, Estonia, during the Holocene. Geological Quarterly, 59, 517−530.

Vestøl, O., Ågren, J., Steffen, H., Kierulf, H., Lidberg, M., Oja, T., Rüdja, A., Kall, T., Saaranen, V., Engsager, K., Jepsen, C., Liepins, I., Paršeliūnas, E. & Tarasov, L. 2016. NKG2016LU, an improved postglacial land uplift model over the Nordic-Baltic region. Presentation at Nordic Geodetic Commission Working Group of Geoid and Height Systems meeting, Tallinn, 12–18 March 2016.

Vilumaa, K., Tõnisson, H., Sugita, S., Buynevich, I. V., Kont, A., Muru, M., Preusser, F., Bjursäter, S., Vaasma, T., Vandel, E., Molodkov, A. & Järvelill, J. I. 2016. Past extreme events recorded in the internal architecture of coastal formations in the Baltic Sea region. Journal of Coastal Research, Special Issue, 75, 775−779.

Vilumaa, K., Ratas, U., Tõnisson, H., Kont, A. & Pajula, R. 2017. Multidisciplinary approach to studying the formation and development of beach-ridge systems on non-tidal uplifting coasts in Estonia. Boreal Environment Research, 22, 67−81.

Zanchettin, D., Rubino, A., Traverso, P. & Tomasino, M. 2008. Impact of variations in solar activity on hydrological decadal patterns in northern Italy. Journal of Geophysical Research, 113, D12102.

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