Waves, currents and sea level variations along the Letipea - Sillamäe coastal section of the southern Gulf of Finland

Suursaar, Ülo

doi:10.5697/oc.52-3.391

Cited by 47 publications

(66 citation statements)

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“…9.16). These values are 10-20 % lower in the nearshore regions (Suursaar and Kullas 2009a, b;Suursaar 2010). The most frequent wave heights are also about 20 % lower than the long-term average wave height Soomere 2008;Soomere et al 2012).…”

Section: Long-term and Extreme Wave Propertiesmentioning

confidence: 92%

“…For some locations along the Estonian coast, simplified fetch-based models using one-point coastal wind have demonstrated that wave intensity changes quasi-periodically and reveals no statistically significant trend (Suursaar and Kullas 2009a, b;Suursaar 2010). Quite large variations in the average wave periods (from about 2.3 s in the mid-1970s to 2.65 s around 1990) were found for selected sites (Suursaar and Kullas 2009b).…”

Section: Spatio-temporal Variationsmentioning

confidence: 97%

“…Wave height at the south-eastern Baltic Sea (Lithuanian) coast showed the opposite: a rapid decrease until about 1996 followed by a rapid increase . The variations were weaker in the simulations of and in reconstructions using a fetchbased model and local wind data (Suursaar and Kullas 2009a, b;Suursaar 2010).…”

Section: Spatio-temporal Variationsmentioning

confidence: 99%

“…Tide gauge operation, and the processing, distribution and archiving of the data are the responsibility of a single national agency per country, for instance the Swedish Meteorological and Hydrographical Institute (SMHI), the Danish Meteorological Institute (DMI), the Estonian Meteorological and Hydrographical Institute (EMHI), the Finnish Barbosa et al (2008) Baltic Sea basin wide Omstedt and Nyberg (1991), Heyen et al (1996), Carlsson (1997Carlsson ( , 1998aCarlsson ( , 1998b, Liebsch (1997), Janssen (2002), Baerens et al (2003), Meier et al (2004), Novotny et al (2006), Hünicke and Zorita (2006, 2007, 2008, Barbosa (2008), , Ekman (2009) and references therein; Hünicke (2010), Donner et al (2012) Southern Baltic Sea coast Richter et al (2007Richter et al ( , 2011 Lithuania Dailidienė et al (2004Dailidienė et al ( , 2005Dailidienė et al ( , 2006Dailidienė et al ( , 2011Dailidienė et al ( , 2012, Jarmalavicius et al (2007) Russia Bogdanov et al (2000), Averkiev and Klevannyy (2010), Navrotskaya and Chubarenko (2012) Estonia Suursaar et al (2002Suursaar et al ( , 2006aSuursaar et al ( , 2010, Kullas (2006, 2009b), Suursaar and Sooäär (2007), Suursaar (2010), Tõnisson et al (2011) Poland Zawadzka (2005, 2008), Richter et al (2007…”

Section: Tide Gaugesmentioning

confidence: 99%

“…Simulations of long-term change in wave fields are, however, hampered by substantial temporal inhomogeneity (Tuomi et al 2011), large spatial differences in data quality (Räämet et al 2009;, and by the inability of even the most advanced atmospheric models to reproduce air flow accurately in several Baltic Sea sub-basins (Keevallik and Soomere 2010). The relatively small size of the Baltic Sea, frequent largescale homogeneity in the wind fields and the short saturation time and memory of wave fields make it possible to use simplified wave hindcast schemes (Soomere 2005), highquality wind data from a few points (Blomgren et al 2001) and/or properly calibrated simple fetch-based wave models (Suursaar and Kullas 2009a, b;Suursaar 2010) to reproduce local wave statistics with an acceptable accuracy. The use of such models for identifying spatial change in wave statistics is limited, however, as they can basically only reproduce change in the local wind field.…”

Section: Hindcast Simulationsmentioning

confidence: 99%

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Recent Change—Sea Level and Wind Waves

Hünicke

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Regional Climate Studies

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This chapter describes observed changes in sea level and wind waves in the Baltic Sea basin over the past 200 years and the main climate drivers of this change. The datasets available for studying these are described in detail. Recent climate change and land uplift are causing changes in sea level. Relative sea level is falling by 8.2 mm year −1 in the Gulf of Bothnia and slightly rising in parts of the southern Baltic Sea. Absolute sea level (ASL) is rising by 1.3-1.8 mm year −1 , which is within the range of recent global estimates. The 30-year trends of

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Section: Long-term and Extreme Wave Propertiesmentioning

confidence: 92%

Section: Spatio-temporal Variationsmentioning

confidence: 97%

Section: Spatio-temporal Variationsmentioning

confidence: 99%

Section: Tide Gaugesmentioning

confidence: 99%

Section: Hindcast Simulationsmentioning

confidence: 99%

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Recent Change—Sea Level and Wind Waves

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Coastal storm characterization and morphological impacts on sandy coasts

Rangel-Buitrago

Anfuso

2011

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The present work deals with storm classification, using the Storm Power Index, and beach morphological response to storm events in the Gulf of Cadiz (SW Spain). Over the 1958-2001 period, 377 events divided into five classes ranging from 'weak' to 'extreme' were characterized. Classes I (weak) and II (moderate) accounted for 60% and 23% of events, respectively. Class III (significant), were 9% of the recorded events and Classes IV (severe) and V (extreme) accounted for 5% and 2%, respectively. The probability of storm occurrence per year ranged from 93% for Class I to 15% for Class V. In order to characterize beach response to storm events, 214 beach profiles carried out with a monthly periodicity over the 1996-1998 period along the Chipiona-Rota littoral were analysed, as well as published data. Different beach types were observed: (i) 'Intermediate' beaches underwent important vertical relief changes ranging from 0.3 m to 1.33 m associated with average slope changes from tan b = 0.06 to tan b = 0.03; (ii) the 'dissipative' beaches were characterized by smaller and homogeneous foreshore vertical changes, from c. 0.36 m to 0.65 m, according to the parallel retreat mechanism characterized by small slope variations (from tan b = 0.025 to tan b = 0.035); and (iii) 'intermediate with rock shore platform' experienced small morphological and foreshore slope variations, related to both beach pivoting and parallel retreat mechanisms. The most important morphological changes were due to the impact of usually 'weak' and 'moderate' events during October and November that produced berm erosion and upper foreshore lowering, and the impact of 'severe', 'significant' and 'extreme' events in December and January which produced dune escarpment, overwash and/or damage to coastal structures.

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Winter wave climate, storms and regional cycles: the SW Spanish Atlantic coast

Rangel-Buitrago

Anfuso

2012

Intl Journal of Climatology

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Climatic change-related impacts on coastal areas became an important issue in past decades and nowadays threaten many human settlements and activities. Coastal hazards are linked to flooding and erosion processes associated with sea level rise and the increased strength of hurricanes, cyclones and storms. The main aim of this work is the characterization of coastal storms in Cadiz (SW Spain) and the determination of their recurrence intervals and relationships with several regional cycles. Storm characterization was carried out using the Storm Power Index (Dolan and Davis, 1992) and five classes were obtained, from class I (weak events) to V (extreme events). Storm occurrence probability was 96% for class I (i.e. almost one event per year) to 3% for class V. The return period for class V was 25 years and ranged from 6 to 8 years for classes III and IV storms, e.g. significant and severe events. Classes I and II showed a period of recurrence ranging from 1 to 3 years. Stormy winter seasons were 2009/10 (12 events), 1995/6 and 2002/3 (with 10 events each) and 1993/4 (8 events). Approximately 40% of the change in monthly wave data and storminess indices was related to several teleconnection patterns, the most important drivers of change being the Arctic Oscillation (AO), 21.45%, and the North Atlantic Oscillation (NAO), 19.65%. It is interesting to note that a great number of storms, larger storm duration and higher values of Storm Power Index were only observed when neutral to strong negative NAO and AO phases occurred at the same time (89 storms and 3355 h) and/or when there was an abrupt change of NAO and AO phases, i.e. they moved from a positive to negative phase without passing through a neutral phase. The results obtained in this work have wider applications for ocean and coastal management. It is suggested that methodology used can be easily applied in different areas where wave buoy data are available. In the same way, information obtained with this kind of work constitutes the first step in the development of coastal protection plans to preserve socio-economic activities from the impact of severe storm events.

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Waves, currents and sea level variations along the Letipea - Sillamäe coastal section of the southern Gulf of Finland

Cited by 47 publications

References 0 publications

Recent Change—Sea Level and Wind Waves

Recent Change—Sea Level and Wind Waves

Coastal storm characterization and morphological impacts on sandy coasts

Winter wave climate, storms and regional cycles: the SW Spanish Atlantic coast

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