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| Van Dover, C.l.; Colaço, Ana; Collins, P.c.; Croot, P.; Metaxas, A.; Murton, B.j.; Swaddling, A.; Boschen-rose, R.e.; Carlsson, J.; Cuyvers, L.; Fukushima, T.; Gartman, A.; Kennedy, R.; Kriete, C.; Mestre, N.c.; Molodtsova, T.; Myhrvold, A.; Pelleter, Ewan; Popoola, S.o.; Qian, P.-y.; Sarrazin, Jozee; Sharma, R.; Suh, Y.j.; Sylvan, J.b.; Tao, C.; Tomczak, M.; Vermilye, J.. |
| Polymetallic sulfide (PMS) deposits produced at hydrothermal vents in the deep sea are of potential interest to miners. Hydrothermally active sulfide ecosystems are valued for the extraordinary chemosynthetic communities that they support. Many countries, including Canada, Portugal, and the United States, protect vent ecosystems in their Exclusive Economic Zones. When hydrothermal activity ceases temporarily (dormancy) or permanently (extinction), the habitat and associated ecosystem change dramatically. Until recently, so-called “inactive sulfide” habitats, either dormant or extinct, received little attention from biologists. However, the need for environmental management of deep-sea mining places new imperatives for building scientific understanding of... |
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| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00643/75525/76401.pdf |
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| Mignot, J.; De Boyer Montegut, Clement; Tomczak, M.. |
| Barrier layers are defined as the layer between the pycnocline and the thermocline when the latter are different as a result of salinity stratification. We present a revisited 2-degree resolution global climatology of monthly mean oceanic Barrier Layer (BL) thickness first proposed by de Boyer Montegut et al. (2007). In addition to using an extended data set, we present a modified computation method that addresses the observed porosity of BLs. We name porosity the fact that barrier layers distribution can, in some areas, be very uneven regarding the space and time scales that are considered. This implies an intermittent alteration of air-sea exchanges by the BL. Therefore, it may have important consequences for the climatic impact of BLs. Differences... |
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| Ano: 2009 |
URL: http://archimer.ifremer.fr/doc/2009/publication-6915.pdf |
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