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| Yeats, Pa; Dalziel, Ja; Moran, Sb. |
| The dissolved Mn distribution on an oceanographic section along 50-degrees-W in the western North Atlantic shows decreasing concentrations in the offshore direction in the surface layer and with depth at the deep water stations. Leachable particulate Mn concentrations are low in the open ocean surface waters and elevated at intermediate depths. Dissolved Al concentrations in the surface layer are higher in the open ocean than on the shelf and the vertical distributions are characterized by surface maxima, a subsurface minimum at almost-equal-to 1 000 m and increasing concentrations in the deep waters. Leachable particulate Al concentrations are elevated on the shelf and in open ocean surface waters compared to the intermediate and deep waters. The Deep... |
| Tipo: Text |
Palavras-chave: ALUMINUM; MANGANESE; NORTH ATLANTIC OCEAN; REMOVAL MECHANISMS; MANGANESE OXIDATION. |
| Ano: 1992 |
URL: http://archimer.ifremer.fr/doc/00101/21186/18803.pdf |
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| Smith, Jn; Jones, Ep; Moran, Sb; Smethie, Wm; Kieser, We. |
| Iodine 129 discharged from nuclear fuel reprocessing plants in France and the United Kingdom is transported into the Nordic Seas on timescales of 3 - 5 years. Tracer I-129 is subsequently injected into intermediate waters that overflow the sills between Greenland, Iceland, and Scotland and ventilate the North Atlantic Deep Waters ( NADW). During the early 1990s, discharges of I-129 increased by 600%, resulting in a large, well- resolved tracer " front'' whose passage through the Nordic Seas is presently being observed by a time series of I-129 measurements on the WOCE ( AR7W) section in the Labrador Sea. The highest I-129 levels were measured below depths of 3000 m in Denmark Strait Overflow Water ( DSOW). These levels increased by about 300% between 1997... |
| Tipo: Text |
Palavras-chave: 129I; Denmark Strait Overflow Water; Transit time; Labrador and Irminger Seas. |
| Ano: 2005 |
URL: https://archimer.ifremer.fr/doc/00232/34344/32757.pdf |
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