Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Dataset Open Access |
| Language: | en |
| Published: |
PANGAEA
1994
|
| Subjects: | |
| Online Access: | https://doi.org/10.1594/PANGAEA.734072 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1867167662620016640 |
|---|---|
| author | Falkner, Kelly Kennison Macdonald, Robie W Carmack, Eddy C Weingartner, T |
| author_facet | Falkner, Kelly Kennison Macdonald, Robie W Carmack, Eddy C Weingartner, T |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | As part of ongoing circulation studies in the Arctic, seawater samples for dissolved Ba concentrations were obtained during Sep.-Oct., 1992 at several locations in the Bering Strait, Eastern Chukchi and Southern Beaufort Seas. The results reveal a dynamic rang (10 to 150 nmol/kg) for this element in the Arctic equal to or greater than that in combined Atlantic, Indian and Pacific oceans. Lowest levels are observed in surface waters, with values tending to decrease northwards in the direction of currents generally flowing frorn the Bering Strait along the Alaskan coast. Low surfacc concentrations tend to be accompanied by relatively enriched near bottom levels. On the basis of these spatial distributions, hydrographic observations and a knowledge of its behavior in other marine settings, it appears that Ba can be significantly depleted from surface waters as a result of the highly seasonal biological aclivities over Arctic marginal shelves. Removal at the surface is counteracted to some extent by regeneration at depth or in the sediments and by riverine inputs. The biologically related drawdown is likely to enhance the contrast between 'background' surface Ba levels in the Arctic and waters imprinted by regeneration and/or rivers, These preliminary findings suggest that Ba holds particular promise for tracing river waters and the ventilation of halodine waters hy laterally sinking brines produced during ice formation over the shelves. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_734072 |
| institution | PANGAEA |
| language | en |
| publishDate | 1994 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Barium in seawater and sediments from the Artic Ocean Falkner, Kelly Kennison Macdonald, Robie W Carmack, Eddy C Weingartner, T Bottle, Niskin; CT; Henry Larson; HL92-16; HX166-track; IOS-A1; NIS; Silicon Cycling in the World Ocean; SINOPS; Underway cruise track measurements As part of ongoing circulation studies in the Arctic, seawater samples for dissolved Ba concentrations were obtained during Sep.-Oct., 1992 at several locations in the Bering Strait, Eastern Chukchi and Southern Beaufort Seas. The results reveal a dynamic rang (10 to 150 nmol/kg) for this element in the Arctic equal to or greater than that in combined Atlantic, Indian and Pacific oceans. Lowest levels are observed in surface waters, with values tending to decrease northwards in the direction of currents generally flowing frorn the Bering Strait along the Alaskan coast. Low surfacc concentrations tend to be accompanied by relatively enriched near bottom levels. On the basis of these spatial distributions, hydrographic observations and a knowledge of its behavior in other marine settings, it appears that Ba can be significantly depleted from surface waters as a result of the highly seasonal biological aclivities over Arctic marginal shelves. Removal at the surface is counteracted to some extent by regeneration at depth or in the sediments and by riverine inputs. The biologically related drawdown is likely to enhance the contrast between 'background' surface Ba levels in the Arctic and waters imprinted by regeneration and/or rivers, These preliminary findings suggest that Ba holds particular promise for tracing river waters and the ventilation of halodine waters hy laterally sinking brines produced during ice formation over the shelves. |
| title | Barium in seawater and sediments from the Artic Ocean |
| topic | Bottle, Niskin; CT; Henry Larson; HL92-16; HX166-track; IOS-A1; NIS; Silicon Cycling in the World Ocean; SINOPS; Underway cruise track measurements |
| url | https://doi.org/10.1594/PANGAEA.734072 |