Contributions of Suspended and Dissolved Substances to the Arctic Ocean During Breakup of the Colville River, Alaska.
During May and June 1973, water samples were collected from the distributary channels and nearshore waters of the Colville River delta, Alaska, in order to determine the river's contribution of suspended and dissolved substances to the Arctic Ocean. Sampling in late winter and during prebreakup...
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ftdtic:ADA025318 2023-05-15T14:43:54+02:00 Contributions of Suspended and Dissolved Substances to the Arctic Ocean During Breakup of the Colville River, Alaska. Hamilton,R. A. Ho,C. L. Walker,H. J. LOUISIANA STATE UNIV BATON ROUGE COASTAL STUDIES INST 1976-01 text/html http://www.dtic.mil/docs/citations/ADA025318 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA025318 en eng http://www.dtic.mil/docs/citations/ADA025318 APPROVED FOR PUBLIC RELEASE DTIC AND NTIS Physical and Dynamic Oceanography Hydrology Limnology and Potamology *NUTRIENTS *RIVERS *RUNOFF *ARCTIC OCEAN ALASKA NITROGEN SEDIMENT TRANSPORT SILICON ORGANIC MATERIALS PARTICULATES FLOODING PHOSPHORUS SILICATES ARCTIC REGIONS PHOSPHATES INORGANIC MATERIALS DELTAS Suspended materials Colville River Text 1976 ftdtic 2016-02-20T11:03:13Z During May and June 1973, water samples were collected from the distributary channels and nearshore waters of the Colville River delta, Alaska, in order to determine the river's contribution of suspended and dissolved substances to the Arctic Ocean. Sampling in late winter and during prebreakup, breakup, and postbreakup flooding provided information on the spatial distribution and temporal variation of these substances. Suspended materials, largely absent in winter, were abundant during flooding. Some of this load was deposited on the sea ice, over which much of the floodwater moved during breakup; the rest was carried seaward beneath the sea ice in the freshwater wedge that forms after floodwater drains through the ice. The interface between the advancing freshwater and the seawater beneath is narrow, and sharp contrasts in temperature, salinity, and nutrient concentrations occur across it. Organic carbon, in both its dissolved and its particulate form, inorganic nitrogen, phosphate phosphorus, and silicate silicon all increased in concentration during flooding. Such seasonal additions suggest that the Colville River is a major contributor of essential nutrients to the nearshore waters of the Arctic Ocean. (Author) Text Arctic Arctic Ocean Sea ice Alaska Defense Technical Information Center: DTIC Technical Reports database Arctic Arctic Ocean |
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Open Polar |
collection |
Defense Technical Information Center: DTIC Technical Reports database |
op_collection_id |
ftdtic |
language |
English |
topic |
Physical and Dynamic Oceanography Hydrology Limnology and Potamology *NUTRIENTS *RIVERS *RUNOFF *ARCTIC OCEAN ALASKA NITROGEN SEDIMENT TRANSPORT SILICON ORGANIC MATERIALS PARTICULATES FLOODING PHOSPHORUS SILICATES ARCTIC REGIONS PHOSPHATES INORGANIC MATERIALS DELTAS Suspended materials Colville River |
spellingShingle |
Physical and Dynamic Oceanography Hydrology Limnology and Potamology *NUTRIENTS *RIVERS *RUNOFF *ARCTIC OCEAN ALASKA NITROGEN SEDIMENT TRANSPORT SILICON ORGANIC MATERIALS PARTICULATES FLOODING PHOSPHORUS SILICATES ARCTIC REGIONS PHOSPHATES INORGANIC MATERIALS DELTAS Suspended materials Colville River Hamilton,R. A. Ho,C. L. Walker,H. J. Contributions of Suspended and Dissolved Substances to the Arctic Ocean During Breakup of the Colville River, Alaska. |
topic_facet |
Physical and Dynamic Oceanography Hydrology Limnology and Potamology *NUTRIENTS *RIVERS *RUNOFF *ARCTIC OCEAN ALASKA NITROGEN SEDIMENT TRANSPORT SILICON ORGANIC MATERIALS PARTICULATES FLOODING PHOSPHORUS SILICATES ARCTIC REGIONS PHOSPHATES INORGANIC MATERIALS DELTAS Suspended materials Colville River |
description |
During May and June 1973, water samples were collected from the distributary channels and nearshore waters of the Colville River delta, Alaska, in order to determine the river's contribution of suspended and dissolved substances to the Arctic Ocean. Sampling in late winter and during prebreakup, breakup, and postbreakup flooding provided information on the spatial distribution and temporal variation of these substances. Suspended materials, largely absent in winter, were abundant during flooding. Some of this load was deposited on the sea ice, over which much of the floodwater moved during breakup; the rest was carried seaward beneath the sea ice in the freshwater wedge that forms after floodwater drains through the ice. The interface between the advancing freshwater and the seawater beneath is narrow, and sharp contrasts in temperature, salinity, and nutrient concentrations occur across it. Organic carbon, in both its dissolved and its particulate form, inorganic nitrogen, phosphate phosphorus, and silicate silicon all increased in concentration during flooding. Such seasonal additions suggest that the Colville River is a major contributor of essential nutrients to the nearshore waters of the Arctic Ocean. (Author) |
author2 |
LOUISIANA STATE UNIV BATON ROUGE COASTAL STUDIES INST |
format |
Text |
author |
Hamilton,R. A. Ho,C. L. Walker,H. J. |
author_facet |
Hamilton,R. A. Ho,C. L. Walker,H. J. |
author_sort |
Hamilton,R. A. |
title |
Contributions of Suspended and Dissolved Substances to the Arctic Ocean During Breakup of the Colville River, Alaska. |
title_short |
Contributions of Suspended and Dissolved Substances to the Arctic Ocean During Breakup of the Colville River, Alaska. |
title_full |
Contributions of Suspended and Dissolved Substances to the Arctic Ocean During Breakup of the Colville River, Alaska. |
title_fullStr |
Contributions of Suspended and Dissolved Substances to the Arctic Ocean During Breakup of the Colville River, Alaska. |
title_full_unstemmed |
Contributions of Suspended and Dissolved Substances to the Arctic Ocean During Breakup of the Colville River, Alaska. |
title_sort |
contributions of suspended and dissolved substances to the arctic ocean during breakup of the colville river, alaska. |
publishDate |
1976 |
url |
http://www.dtic.mil/docs/citations/ADA025318 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA025318 |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Ocean Sea ice Alaska |
genre_facet |
Arctic Arctic Ocean Sea ice Alaska |
op_source |
DTIC AND NTIS |
op_relation |
http://www.dtic.mil/docs/citations/ADA025318 |
op_rights |
APPROVED FOR PUBLIC RELEASE |
_version_ |
1766315476615430144 |