Characteristics analysis of summer-autumn extreme wave events in the Arctic Ocean

Xu Xiaoyang; Zhang Daqian; Zhang Lujun

doi:10.12284/hyxb2024037

Volume 46 Issue 4

Jun. 2024

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Xu Xiaoyang，Zhang Daqian，Zhang Lujun. Characteristics analysis of summer-autumn extreme wave events in the Arctic Ocean[J]. Haiyang Xuebao，2024, 46(4)：13–22 doi: 10.12284/hyxb2024037

Citation:

Xu Xiaoyang，Zhang Daqian，Zhang Lujun. Characteristics analysis of summer-autumn extreme wave events in the Arctic Ocean[J]. Haiyang Xuebao，2024, 46(4)：13–22 doi: 10.12284/hyxb2024037

Citation:

Xu Xiaoyang，Zhang Daqian，Zhang Lujun. Characteristics analysis of summer-autumn extreme wave events in the Arctic Ocean[J]. Haiyang Xuebao，2024, 46(4)：13–22 doi: 10.12284/hyxb2024037

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Characteristics analysis of summer-autumn extreme wave events in the Arctic Ocean

doi: 10.12284/hyxb2024037

School of Atmospheric Sciences, Nanjing University, Nanjing 210023, China

Received Date: 2024-01-09
Rev Recd Date: 2024-03-21

Available Online: 2024-05-21

Publish Date: 2024-06-30

Abstract

Abstract

This study used ERA5 reanalysis data to collect an extreme wave event dataset for various regions in the Arctic Ocean during August to October from 1979 to 2021. The analysis focused on the frequency of extreme wave events, changes in extreme wave heights, features of wave power and wave direction distribution, as well as the change of sea ice during wave events. The results suggest that as sea ice decreases, the range of extreme wave activity in the Arctic expands. All regions, except the Barents Sea, exhibit an increase in the occurrence of extreme wave events. In particular, extreme wave heights in the East Siberian Sea and Laptev Sea have significantly increased at rates of approximately 3.5 cm/a and 2 cm/a, respectively, with event frequency reaching around 4 events per year. The dominant wave direction in the Laptev Sea is southerly, facilitating more frequent wave propagation into the ice zone compared to other seas, with an average wave energy flux ranging from 5−8 kW/m. The changes in sea ice within extreme wave events primarily occur in the marginal ice zones and are associated with wind direction: sea ice is more likely to decrease with on-ice winds, while it is more likely to increase with off-ice winds.
- Arctic Ocean,
- ocean wave,
- sea ice,
- extreme event,
- POT method

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References(23)

References

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