Spatial variations in the Caspian Sea wave climate in 2002–2013 from satellite altimetry

Kudryavtseva, N. A.; Kussembayeva, K; Rakisheva, Zaure; Soomere, Tarmo

doi:10.3176/earth.2019.16

Cited by 8 publications

(4 citation statements)

References 41 publications

(55 reference statements)

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“…The extreme sea levels for different return periods (5,10,25,50, and 100 years) were calculated. The extreme sea level values in the northern part of the Caspian Sea for the return period of 100 years are close to 3 m; the areas with big surges are located along the eastern and western coasts.…”

Section: Discussionmentioning

confidence: 99%

“…They modified the coefficients of whitecapping and wave breaking based on the comparison of simulation and observational data, which reduced modeling errors for specific points and for a certain time period. Kudryavtseva et al (2016) showed the main features of the wave climate in the Caspian Sea for the 2002-2013 time period based on altimetry data [25]. It is not surprising that the results of the analysis and forecasting of waves highly depend on the quality of the wind data input.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Storm Surges and Extreme Wind Waves in the Caspian Sea in the Present and Future Climate

Pavlova

Myslenkov²,

Архипкин³

et al. 2022

Civ Eng J

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The Caspian Sea is of particular interest. Against the background of long-term sea level changes, low-lying coastal areas in the northern part are subject to constant flooding as a result of storm surges. The elongation of the sea in the meridional direction allows the development of strong waves in the middle and southern parts. A comprehensive understanding of the characteristics of storm surges and storm waves is especially important in the context of ongoing climate change. This study is devoted to the analysis of storm surges for the time period from 1979 up to 2017 and wind waves from 1979 to 2020 in the Caspian Sea region. The circulation model ADCIRC and the wave model WAVEWATCH III with wind and pressure forcing from the NCEP/CFSR reanalysis were used. The modeling is performed on different unstructured grids with spacings of 500–900 m in the coastal zone. Mean and extreme values of surges, wave parameters and storm activity are provided in the research. The maximum significant wave height for the whole period was 8.2 m. The average long-term SWH did not exceed 1.1 m. No significant trends in the storm activity were found. The maximum surge height was 2.7 m. The analysis of the interannual variability of the surges' occurrence showed that 7–10 surges with a height of more than 1 meter were detected every year. The total duration of these surges was 20–30 days per year. Assessment of the risks of coastal flooding was carried out by calculating the extreme values of the sea for different return periods: 5, 10, 25, 50, and 100 years. The extreme sea level values in the northern part of the Caspian Sea for the 100-year return period are close to 3 m, and the areas with big surges are located along the eastern and western coasts. A forecast is made for the recurrence of storm wind waves in the 21st century based on climatic scenarios in CMIP5. A statistically significant increase in the recurrence of storm waves is to be expected in the near future, but that increase is not severe. Doi: 10.28991/CEJ-2022-08-11-01 Full Text: PDF

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Storm Surges and Extreme Wind Waves in the Caspian Sea in the Present and Future Climate

Pavlova

Myslenkov²,

Архипкин³

et al. 2022

Civ Eng J

View full text Add to dashboard Cite

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“…Wave climate of the Caspian Sea based on NCEP/NCAR reanalysis presented in studies of [Lopatoukhin, 2019, Lopatukhin and Yaitskaya, 2018, Yaitskaya, 2017. The main features of the wave climate in the Caspian Sea based on altimetry data are displayed in [Kudryavtseva et al, 2019, Lama et al, 2022. The wave energy was estimated in [Amini et al, 2021, Kamranzad et al, 2016.…”

Section: Introductionmentioning

confidence: 99%

Number of Storms in Several Russian Seas: Trends and Connection to Large-Scale Atmospheric Indices

Myslenkov

Kruglova

Medvedeva

et al. 2023

Russian Journal of Earth Sciences

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Changes in the recurrence of extreme wind waves in the World Ocean are connected with the global climate change. The end of the 20th and the beginning of the 21st centuries are characterized by significant climate warming, the reduction of the Arctic sea ice and changes in the recurrence of various extreme meteorological events. The main motivation of this research is to assess the trends of storm recurrence for the time period from 1979 up to 2020 and to analyze the connection between storminess and large-scale atmospheric circulation indexes. This research contains information about the number of storms that occurred in seven Russian Seas, including the Black, Caspian, Barents, Kara, Bering Seas, the Sea of Okhotsk and the Sea of Japan/East Sea. These seas are located in different climate conditions determined by the Atlantic, Pacific and Arctic oceans. The analysis of wave climate and storm activity is based on the results of wave modelling by WAVEWATCH III with input NCEP/CFSR wind and ice data. The mean plots, maximum, and 95% percentile sig-nificant wave heights are also presented in the research. Significant linear uptrends in the number of storms were found in the Kara, Caspian, Bering, Okhotsk Seas, and in the Sea of Japan. The relationship between the inter-annual variability of the number of storms and large-scale at-mospheric indexes is considered.

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“…Wave climate of the Caspian Sea based on low-resolution NCEP/NCAR reanalysis is presented in [19,[23][24][25]. The main features of the wave climate in the Caspian Sea for 2002-2013 based on altimetry data are displayed in [26]. Detailed estimates of monthly mean satellite-based wave heights for the Caspian Sea are given in [27].…”

Section: Introductionmentioning

confidence: 99%

Influence of Long-Term Wind Variability on the Storm Activity in the Caspian Sea

Kruglova

Myslenkov

2023

Water

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Wind and wave conditions are limiting factors for economic activity, and it is very important to study the long-term variability of storm activity. The main motivation of this research is to assess the impact of wind variability on the storm activity in the Caspian Sea over the past 42 years. The paper presents the analysis of a number of storms based on the results of wave model WAVEWATCH III and the Peak Over Threshold method. The mean, maximum, and 95th percentile significant wave heights were analyzed by season. The highest waves were in the Middle Caspian Sea in winter. Detailed interannual and seasonal analyses of the number and duration of storm waves were performed for the whole Caspian Sea and its separate regions. Positive significant trends were found in the whole sea. Significant positive trends in the number and duration of storms were found for the North and Middle Caspian. In the South Caspian, the trends were negative and not significant. High correlations were found between the number of storms and events with wind speed > 10–14 m/s and 95th percentile wind speed. Positive trends in the number of storms in the Middle Caspian were caused by positive trends in extreme wind situations.

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Spatial variations in the Caspian Sea wave climate in 2002–2013 from satellite altimetry

Cited by 8 publications

References 41 publications

Storm Surges and Extreme Wind Waves in the Caspian Sea in the Present and Future Climate

Storm Surges and Extreme Wind Waves in the Caspian Sea in the Present and Future Climate

Number of Storms in Several Russian Seas: Trends and Connection to Large-Scale Atmospheric Indices

Influence of Long-Term Wind Variability on the Storm Activity in the Caspian Sea

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