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| Lozier, M. Susan; Bacon, Sheldon; Bower, Amy S.; Cunningham, Stuart A.; De Jong, M. Femke; De Steur, Laura; Deyoung, Brad; Fischer, Juergen; Gary, Stefan F.; Greenan, Blair J. W.; Heimbach, Patrick; Holliday, Naomi P.; Houpert, Loic; Inall, Mark E.; Johns, William E.; Johnson, Helen L.; Karstensen, Johannes; Li, Feili; Lin, Xiaopei; Mackay, Neill; Marshall, David P.; Mercier, Herle; Myers, Paul G.; Pickart, Robert S.; Pillar, Helen R.; Straneo, Fiammetta; Thierry, Virginie; Weller, Robert A.; Williams, Richard G.; Wilson, Chris; Yang, Jiayan; Zhao, Jian; Zika, Jan D.. |
| A new ocean observing system has been launched in the North Atlantic in order to understand the linkage between the meridional overturning circulation and deep water formation. For decades oceanographers have understood the Atlantic Meridional Overturning Circulation (AMOC) to be primarily driven by changes in the production of deep water formation in the subpolar and subarctic North Atlantic. Indeed, current IPCC projections of an AMOC slowdown in the 21st century based on climate models are attributed to the inhibition of deep convection in the North Atlantic. However, observational evidence for this linkage has been elusive: there has been no clear demonstration of AMOC variability in response to changes in deep water formation. The motivation for... |
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| Ano: 2017 |
URL: http://archimer.ifremer.fr/doc/00358/46881/46764.pdf |
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| Priede, Imants G.; Bergstad, Odd Aksel; Miller, Peter I.; Vecchione, Michael; Gebruk, Andrey; Falkenhaug, Tone; Billett, David S. M.; Craig, Jessica; Dale, Andrew C.; Shields, Mark A.; Tilstone, Gavin H.; Sutton, Tracey T.; Gooday, Andrew J.; Inall, Mark E.; Jones, Daniel O. B.; Martinez-vicente, Victor; Menezes, Gui M.; Niedzielski, Tomasz; Sigurosson, Porsteinn; Rothe, Nina; Rogacheva, Antonina; Alt, Claudia H. S.; Brand, Timothy; Abell, Richard; Brierley, Andrew S.; Cousins, Nicola J.; Crockard, Deborah; Hoelzel, A. Rus; Hoines, Age; Letessier, Tom B.; Read, Jane F.; Shimmield, Tracy; Cox, Martin J.; Galbraith, John K.; Gordon, John D. M.; Horton, Tammy; Neat, Francis; Lorance, Pascal. |
| In contrast to generally sparse biological communities in open-ocean settings, seamounts and ridges are perceived as areas of elevated productivity and biodiversity capable of supporting commercial fisheries. We investigated the origin of this apparent biological enhancement over a segment of the North Mid-Atlantic Ridge (MAR) using sonar, corers, trawls, traps, and a remotely operated vehicle to survey habitat, biomass, and biodiversity. Satellite remote sensing provided information on flow patterns, thermal fronts, and primary production, while sediment traps measured export flux during 2007–2010. The MAR, 3,704,404 km2 in area, accounts for 44.7% lower bathyal habitat (800–3500 m depth) in the North Atlantic and is dominated by fine soft sediment... |
| Tipo: Text |
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| Ano: 2013 |
URL: http://archimer.ifremer.fr/doc/00135/24650/22683.pdf |
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