Search: onr:"swepub:oai:DiVA.org:su-107444" >
Control of the glac...
-
De Boer, Agatha M.Stockholms universitet,Institutionen för geologiska vetenskaper
(author)
Control of the glacial carbon budget by topographically induced mixing
- Article/chapterEnglish2014
Publisher, publication year, extent ...
Numbers
-
LIBRIS-ID:oai:DiVA.org:su-107444
-
https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-107444URI
-
https://doi.org/10.1002/2014GL059963DOI
Supplementary language notes
-
Language:English
-
Summary in:English
Part of subdatabase
Classification
-
Subject category:ref swepub-contenttype
-
Subject category:art swepub-publicationtype
Notes
-
AuthorCount:2;
-
Evidence for the oceanic uptake of atmospheric CO2 during glaciations suggests that there was less production of southern origin deep water but, paradoxically, a larger volume of southern origin water than today. Here we demonstrate, using a theoretical box model, that the inverse relationship between volume and production rate of this water mass can be explained by invoking mixing rates in the deep ocean that are proportional to topographic outcropping area scaled with ocean floor slope. Furthermore, we show that the resulting profile, of a near-linear decrease in mixing intensity away from the bottom, generates a positive feedback on CO2 uptake that can initiate a glacial cycle. The results point to the importance of using topography-dependent mixing when studying the large-scale ocean circulation, especially in the paleo-intercomparison models that have failed to produce the weaker and more voluminous bottom water of the Last Glacial Maximum.
Subject headings and genre
Added entries (persons, corporate bodies, meetings, titles ...)
-
Hogg, Andrew McC.
(author)
-
Stockholms universitetInstitutionen för geologiska vetenskaper
(creator_code:org_t)
Related titles
-
In:Geophysical Research Letters41:12, s. 4277-42840094-82761944-8007
Internet link
Find in a library
To the university's database