The Salinity Budget of the Ross Sea Continental Shelf, Antarctica

Yan, Liangjun; Wang, Zhaomin; Liu, Chengyan; Wu, Yang; Qin, Qing; Sun, Chong; Qian, Jiangchao; Zhang, Li

doi:10.1029/2022jc018979

JGR Oceans

2023

DOI: 10.1029/2022jc018979

|View full text |Cite

The Salinity Budget of the Ross Sea Continental Shelf, Antarctica

Liangjun Yan

Zhaomin Wang

Chengyan Liu

et al.

Abstract: Antarctic Bottom Water (AABW) mainly originates from the Antarctic marginal seas. As the key lower limb of the global overturning circulation, AABW is an important sink of CO 2 and heat (Sigman & Boyle, 2000), and the changes in its properties can affect the global sea level change (

Help me understand this report

Search citation statements

Order By: Relevance

Paper Sections

Select...

Citation Types

Supporting

Mentioning

Contrasting

Year Published

2024

Publication Types

Select...

Article2

Relationship

Self Cite0

Independent2

Authors

Journals

Cited by 2 publications

References 105 publications

(173 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

A Model‐Based Investigation of the Recent Rebound of Shelf Water Salinity in the Ross Sea

Zhang,

King

et al. 2024

Geophysical Research Letters

View full text Add to dashboard Cite

Intense atmosphere‐ocean‐ice interactions in the Ross Sea play a vital role in global overturning circulation by supplying saline and dense shelf waters. Since the 1960s, freshening of the Ross Sea shelf water has led to a decline in Antarctic Bottom Water formation. However, during 2012–2018, salinity of the western Ross Sea has rebounded. This study adopts a global ocean‐sea ice model to investigate the causes of this salinity rebound. Model‐based surface salinity budget analysis indicates that the salinity rebound was driven by increased brine rejection from sea ice formation, triggered by nearly equal effects of local anomalous winds and surface heat flux. The local divergent wind anomalies promoted local sea ice formation by creating a thin ice area, while cooling heat flux anomaly decreased the surface temperature, increasing sea ice production as well. This highlights the importance of understanding local climate variability in projecting future dense shelf water change.

show abstract

A Model‐Based Investigation of the Recent Rebound of Shelf Water Salinity in the Ross Sea

Zhang,

King

et al. 2024

Geophysical Research Letters

View full text Add to dashboard Cite

show abstract

Evidence for large-scale climate forcing of dense shelf water variability in the Ross Sea

Zhang,

Xie,

Castagno

et al. 2024

Nat Commun

View full text Add to dashboard Cite

Antarctic Bottom Water (AABW), which supplies the lower limb of the thermohaline circulation, originates from dense shelf water (DSW) forming in Antarctic polynyas. Here, combining a long mooring record of DSW measurements with numerical simulations and satellite data, we show that significant correlation exists between interannual variability of DSW production in the Ross Sea polynyas, where DSW contributes between 20–40% of the global AABW production, and the Southern Annular Mode (SAM). The correlation is largest when the Amundsen Sea Low (ASL) is weakened and shifted east of the Ross Sea. During positive SAM phases, enhanced offshore winds and lower air temperatures over the western Ross Sea increase sea ice production and promote DSW formation, with the opposite response during negative SAM phases. These processes ultimately modulate AABW thickness in the open ocean. A projected positive shift of the SAM and eastward displacement of the ASL thus has implications for the future of DSW and AABW formation.

show abstract

scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.

Contact Info

customersupport@researchsolutions.com

10624 S. Eastern Ave., Ste. A-614

Henderson, NV 89052, USA

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

Blog Terms and Conditions API Terms Privacy Policy Contact Cookie Preferences Do Not Sell or Share My Personal Information

Made with 💙 for researchers

Part of the Research Solutions Family.

The Salinity Budget of the Ross Sea Continental Shelf, Antarctica

Abstract: Antarctic Bottom Water (AABW) mainly originates from the Antarctic marginal seas. As the key lower limb of the global overturning circulation, AABW is an important sink of CO 2 and heat (Sigman & Boyle, 2000), and the changes in its properties can affect the global sea level change (

Cited by 2 publications

References 105 publications

A Model‐Based Investigation of the Recent Rebound of Shelf Water Salinity in the Ross Sea

A Model‐Based Investigation of the Recent Rebound of Shelf Water Salinity in the Ross Sea

Evidence for large-scale climate forcing of dense shelf water variability in the Ross Sea

Contact Info

Product

Resources

About