onr:"swepub:oai:gup.ub.gu.se/313571"
Search: onr:"swepub:oai:gup.ub.gu.se/313571" > Seasonal Transforma...
- 1 of 1
- Previous record
- Next record
- To hitlist
Seasonal Transformation and Spatial Variability of Water Masses Within MacKenzie Polynya, Prydz Bay
- Portela, E. (author)
- Rintoul, S. R. (author)
- Bestley, S. (author)
- show more...
- Herraiz-Borreguero, L. (author)
- van Wijk, E. (author)
- McMahon, C. R. (author)
- Hindell, M. (author)
- show less...
- (creator_code:org_t)
- 2021
- 2021
- English.
- In: Journal of Geophysical Research: Oceans. - 2169-9275. ; 126:12
- Journal article (peer-reviewed)
Abstract
Subject headings
Close
- We provide a detailed description of the spatial distribution, seasonality and transformation of the main water masses within MacKenzie Polynya (MP) in Prydz Bay, East Antarctica, using data from instrumented southern elephant seals. Dense Shelf Water (DSW) formation in MP shows large spatial variability that is related to the (a) local bathymetry, (b) water column preconditioning from the presence/absence of different water masses, and (c) proximity to the Amery Ice Shelf meltwater outflow. MP exhibits sustained sea ice production and brine rejection (thus, salinity increase) from April to October. However, new DSW is only formed from June onward, when the mixed layer deepens and convection is strong enough to break the stratification set by Antarctic Surface Water above and Ice Shelf Water below. We found no evidence of DSW export from MP to Darnley polynya, as previously suggested. Rather, our observations suggest some DSW formed in Darnley Polynya may drain toward the western Prydz Bay. Then, DSW is exported offshore from Prydz Bay through the Prydz Channel. The interplay between sea ice formation, meltwater input, and sea floor topography is likely to explain why some coastal polynyas form more DSW than others, as well as the temporal variability in DSW formation within a particular polynya. © 2021. American Geophysical Union. All Rights Reserved.
Subject headings
- NATURVETENSKAP -- Geovetenskap och miljövetenskap -- Oceanografi, hydrologi och vattenresurser (hsv//swe)
- NATURAL SCIENCES -- Earth and Related Environmental Sciences -- Oceanography, Hydrology and Water Resources (hsv//eng)
Keyword
- Antarctic polynyas
- dense shelf water
- water masses
Publication and Content Type
- ref (subject category)
- art (subject category)
Find in a library
- Journal of Geophysical Research: Oceans (Search for host publication in LIBRIS)
To the university's database
- 1 of 1
- Previous record
- Next record
- To hitlist
Find more in SwePub
- By the author/editor
- Portela, E.
- Rintoul, S. R.
- Bestley, S.
- Herraiz-Borregue ...
- van Wijk, E.
- McMahon, C. R.
- show more...
- Roquet, Fabien, ...
- Hindell, M.
- show less...
- About the subject
-
- NATURAL SCIENCES
- NATURAL SCIENCES
- and Earth and Relate ...
- and Oceanography Hyd ...
- Articles in the publication
- Journal of Geoph ...
- By the university
- University of Gothenburg
Search outside SwePub
- Extend your search to:
- Google Book Search
- Google Scholar
Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.
- Copyright © LIBRIS - National Library Systems
- LIBRIS.kb.se
