Impacts of atmospheric and oceanic factors on monthly and interannual variations of polynya in the East Siberian Sea and Chukchi Sea

Zhang, Yu; Zhang, Yanyan; Xu, Danya; Chen, Changsheng; Shen, Xinyi; Hu, Song; Chang, Liang; Zhou, Xiangqian; Feng, Gao

doi:10.1016/j.accre.2021.07.005

Cited by 5 publications

(3 citation statements)

References 50 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Sea-ice motion in ESS is affected by wind patterns generally following the wind direction (Morris et al, 1999). On the shallow Siberian continental shelf, the persistent sea breeze in winter causes the formation of polynya or channels at the boundary between land-fast ice and pack ice (Zhang et al, 2021) such as the Great Siberian Polynya that has long existed between the eastern LS and the New Siberian Islands (Bareiss & Gӧrgen, 2005;Speer et al, 2017;Zonn et al, 2016).…”

Section: Regional Settingsmentioning

confidence: 99%

See 1 more Smart Citation

HBIs and Sterols in Surface Sediments Across the East Siberian Sea: Implications for Palaeo Sea‐Ice Reconstructions

Ren

Sicre

et al. 2022

Geochem Geophys Geosyst

View full text Add to dashboard Cite

Since the beginning of the twentieth century, the global ocean has undergone unprecedented changes caused by global warming (Gillett et al., 2021;Stocker et al., 2013). These changes are notably pronounced in the Arctic region due to polar amplification with major consequences for sea-ice cover and the thermohaline circulation (Cavalieri et al., 1997;Shindell & Faluvegi, 2009). The Arctic Ocean and its marginal seas are characterized by large seasonal sea-ice changes. Melting in summer and sea-ice formation in winter, including coastal polynyas, through the production of cold and saline waters, alter deep-water formation and subsequently the Arctic Ocean circulation (Arrigo, 2014;Cai et al., 2010;Overland & Wang, 2013;Xiao et al., 2013). At the current rate of decline (0.42% year −1 ), the Arctic Ocean may be ice-free in summer season in the next 50 or even 30 years (Comiso, 2012;Wang et al., 2019), which will profoundly impact the global climate and carbon cycle and further accelerate global warming causing damages to the polar ecosystems (Moline et al., 2008). In Arctic marginal seas changes in sea-ice cover and thickness involve different thermodynamic and dynamic factors (Polyakov et al., 2003). In the case of the East Siberian Sea (ESS), land run-off and atmospheric circulation are controlling factors of the sea-ice distribution (Park et al., 2020;Rigor & Wallace, 2004).Our knowledge on natural variability of Arctic sea ice and on-going changes are limited by the lack of long time series observations. Information on past sea-ice distribution can be obtained from micropaleontological fossils (

show abstract

Section: Regional Settingsmentioning

confidence: 99%

“…Indeed, longest season of fast ice formation has been observed between the New Siberian Islands and the coast (Yu et al, 2014). In addition, wind-driven polynya formation and channels between land-fast ice and pack ice also cause sea-ice diatom blooms (Zhang et al, 2021).…”

Section: Ip 25 Variability and Spring/summer Sea-ice Conditionmentioning

confidence: 99%

HBIs and Sterols in Surface Sediments Across the East Siberian Sea: Implications for Palaeo Sea‐Ice Reconstructions

Ren

Sicre

et al. 2022

Geochem Geophys Geosyst

View full text Add to dashboard Cite

show abstract

“…It is considered that the area with less than 75% sea ice concentration is the polynya area, and the area with more than 75% sea ice concentration is the sea ice area. Thus, the occurrence frequency of the Polynya in the Amundsen Sea from 2002 to 2020 was evaluated (Zhang et al, 2021). The main area of polynya in the Amundsen Sea was assumed to be the area with a high occurrence frequency (Figure 3).…”

Section: Study Sitementioning

confidence: 99%

The influence of strong tides on the formation of Amundsen Sea Polynya

Zhuo

Yan

et al. 2022

Preprint

View full text Add to dashboard Cite

Polynyas play an important role in climate change with an efficient exchange of heat and matter between the atmosphere and the ocean in polar regions. This study investigated the influence of strong tides and atmospheric forcing on the Amundsen Sea Polynya, especially focusing on large-area polynya events from 2002 to 2020. We found that the geographical locations of the polynyas are closely related to the underwater ridge, where tidal currents are relatively strong. More importantly, strong cross-ridge winds are the “triggers” above the sea surface for the initial formation of the Amundsen Sea Polynya, while strong tides under the sea surface tend to create large-area polynya. Four of the five largest polynya events occurred mainly during spring tides. Only the 2016 event occurred during the normal tide period, which was atmosphere-dominated. Strong tides significantly affect the evolution of polynyas by strengthening the vertical mixing of seawater. Given that ocean in Antarctica might become warmer, tidal mixing might enhance the mixing in the future climate.

show abstract

Dynamics, impacts, and future projections of Arctic rapid change

Chen

Zhang

2021

Advances in Climate Change Research

View full text Add to dashboard Cite

Impacts of atmospheric and oceanic factors on monthly and interannual variations of polynya in the East Siberian Sea and Chukchi Sea

Cited by 5 publications

References 50 publications

HBIs and Sterols in Surface Sediments Across the East Siberian Sea: Implications for Palaeo Sea‐Ice Reconstructions

HBIs and Sterols in Surface Sediments Across the East Siberian Sea: Implications for Palaeo Sea‐Ice Reconstructions

The influence of strong tides on the formation of Amundsen Sea Polynya

Dynamics, impacts, and future projections of Arctic rapid change

Contact Info

Product

Resources

About