urn:ieda:metadataabout:10.15784-600092
eng
dataset
Dataset
Interdisciplinary Earth Data Alliance
web@usap-dc.org
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logo graphic
pointOfContact
2018-05-17
ISO 19139 Geographic Information - Metadata - Implementation Specification
2007
Controls on Climate-Active Gases by Amundsen Sea Ice Biota
2010
publication
doi:10.15784/600092
Smith, Walker O.
Biological Sciences, Virginia Institute of Marine Science, The College of William & Mary, P.O. Box 1346, Gloucester Pt, VA, 23062-1346, USA
wos@vims.edu
http://orcid.org/ORCID:0000-0003-4304-1980
ORCID
author
U.S. Antarctic Program (USAP) Data Center
publisher
Abstract: Convincing evidence now confirms that polar regions are changing rapidly in response to human activities. Changes in sea ice extent and thickness will have profound implications for productivity, food webs and carbon fluxes at high latitudes, since sea ice biota are a significant source of biogenic matter for the ecosystem. While sea ice is often thought to be a barrier to gas exchange between the ocean and the atmosphere, it more likely functions as a source or sink for climate-active gases such as carbon dioxide and ozone-depleting organohalogens, due in part to activities of microbes embedded in the sea ice matrix. This project brings together experienced US and Swedish investigators to examine the controls by sea-ice biota on the production and degradation of key climate-active gases in the Pacific sector of the Southern Ocean. We hypothesize that 1) the physical properties of the sea-ice environment will determine the community structure and activities of the sea ice biota; 2) the productivity, biomass, physiological state and species composition of ice algae will determine the production of specific classes of organic carbon, including organohalogens; 3) heterotrophic co-metabolism within the ice will break down these compounds to some extent, depending on the microbial community structure and productivity, and 4) the sea ice to atmosphere fluxes of CO2 and organohalogens will be inversely related. This project will build close scientific collaborations between US and Swedish researchers and also train young scientists, including members of underrepresented groups. Dissemination of results will include the scientific literature, and public outreach venues including interactions with a PolarTrec teacher.
funderName:NSF:GEO:PLR:Antarctic Organisms and Ecosystems
awardNumber:0836112
awardTitle:Collaborative Research: Controls on climate-active gases by Amundsen Sea ice biota
Complete
Smith, Walker O.
Biological Sciences, Virginia Institute of Marine Science, The College of William & Mary, P.O. Box 1346, Gloucester Pt, VA, 23062-1346, USA
http://orcid.org/ORCID:0000-0003-4304-1980
ORCID
pointOfContact
Oden2008
cruise
CTD
data type
Oden
platform
Antarctic Organisms and Ecosystems
program
Chemistry:Fluid
Sea Surface
IEDA data type categories
IEDA integrated catalog keyword vocabulary
2017-10-11
creation
Antarctica
Sea Ice
Southern Ocean
IEDA feature of interest
IEDA integrated catalog keyword vocabulary
2017-10-11
creation
Cryosphere
Oceans
IEDA topic
IEDA integrated catalog keyword vocabulary
2017-10-11
creation
Amundsen Sea
place
US Antarctic Program Data Center (USAP-DC)
Data Center
Creative Commons Attribution-NonCommercial-Share Alike 3.0 United States [CC BY-NC-SA 3.0]
Creative Commons Attribution-NonCommercial-Share Alike 3.0 United States [CC BY-NC-SA 3.0]
eng
geoscientificInformation
Amundsen Sea
100
170
-79
-69
2008-09-01
2010-08-31
http://dx.doi.org/10.15784/600092
WWW:LINK-1.0-http--link
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information
http://www.usap-dc.org/view/dataset/600092
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information
This metadata record was generated by an xslt transformation from a DataCite metadata record; The transform was created by Damian Ulbricht and Stephen M. Richard. 2017-11-15 these records include new IEDA keywords for geoportal facets Run on 2018-06-21T19:05:24-07:00
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