The effect of the Siberian tundra on the environment of the shelf seas and the Arctic Ocean
(1999) In Ambio 28(3). p.270-280- Abstract
The Tundra Ecology -94 expedition investigated inflow of inorganic and organic carbon to the shelf seas by river runoff, and its transformation by biochemical processes in seawater and sediment. In addition, anthropogenic radionuclides, 137Cs, 90Sr, and 239,240Pu, were studied in water and sediments. The distribution of dissolved inorganic carbon indicates that the majority of the Ob and Yenisey discharges flow into the Laptev Sea before entering the central Arctic Ocean. The sediment study shows that there is a marked difference in benthic oxygen uptake, efflux of dissolved inorganic carbon and nutrients between localities. 137Cs activity from the Chernobyl accident is 30% in the Barents,... (More)
The Tundra Ecology -94 expedition investigated inflow of inorganic and organic carbon to the shelf seas by river runoff, and its transformation by biochemical processes in seawater and sediment. In addition, anthropogenic radionuclides, 137Cs, 90Sr, and 239,240Pu, were studied in water and sediments. The distribution of dissolved inorganic carbon indicates that the majority of the Ob and Yenisey discharges flow into the Laptev Sea before entering the central Arctic Ocean. The sediment study shows that there is a marked difference in benthic oxygen uptake, efflux of dissolved inorganic carbon and nutrients between localities. 137Cs activity from the Chernobyl accident is 30% in the Barents, Kara, and Laptev Seas. 137Cs increased from 5-8 Bq m-3 in Barents Sea, 5-13 Bq m-3 in the Kara Sea to 8-15 Bq m-3 in the Laptev Sea, but with locally low concentrations at the river mouths. Corresponding values for 90Sr were 2.5, 3, and 4 Bq m-3, respectively.
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- author
- organization
- publishing date
- 1999-05-01
- type
- Contribution to journal
- publication status
- published
- in
- Ambio
- volume
- 28
- issue
- 3
- pages
- 11 pages
- publisher
- Springer
- external identifiers
-
- scopus:0033039941
- ISSN
- 0044-7447
- language
- English
- LU publication?
- yes
- id
- 8a84c8c9-c95a-429d-97c3-1be1656cb3d4
- date added to LUP
- 2020-05-07 21:02:26
- date last changed
- 2024-04-03 07:27:44
@article{8a84c8c9-c95a-429d-97c3-1be1656cb3d4, abstract = {{<p>The Tundra Ecology -94 expedition investigated inflow of inorganic and organic carbon to the shelf seas by river runoff, and its transformation by biochemical processes in seawater and sediment. In addition, anthropogenic radionuclides, <sup>137</sup>Cs, <sup>90</sup>Sr, and <sup>239,240</sup>Pu, were studied in water and sediments. The distribution of dissolved inorganic carbon indicates that the majority of the Ob and Yenisey discharges flow into the Laptev Sea before entering the central Arctic Ocean. The sediment study shows that there is a marked difference in benthic oxygen uptake, efflux of dissolved inorganic carbon and nutrients between localities. <sup>137</sup>Cs activity from the Chernobyl accident is 30% in the Barents, Kara, and Laptev Seas. <sup>137</sup>Cs increased from 5-8 Bq m<sup>-3</sup> in Barents Sea, 5-13 Bq m<sup>-3</sup> in the Kara Sea to 8-15 Bq m<sup>-3</sup> in the Laptev Sea, but with locally low concentrations at the river mouths. Corresponding values for <sup>90</sup>Sr were 2.5, 3, and 4 Bq m<sup>-3</sup>, respectively.</p>}}, author = {{Anderson, Leif G. and Carlsson, Kjell Åke and Hall, Per O.J. and Holm, Elis and Josefsson, Dan and Olsson, Kristina and Persson, Bertil R.R. and Persson, Tomas and Roos, Per and Tengberg, Anders and Wedborg, Margareta}}, issn = {{0044-7447}}, language = {{eng}}, month = {{05}}, number = {{3}}, pages = {{270--280}}, publisher = {{Springer}}, series = {{Ambio}}, title = {{The effect of the Siberian tundra on the environment of the shelf seas and the Arctic Ocean}}, volume = {{28}}, year = {{1999}}, }