OSO08 expedition data contains biogeochemical and microbiological measurements from sea ice, brine, and under-ice seawater across the Amundsen Sea. The Yager research group collected samples at 16 stations along a transect covering over 3000 miles between November 2008 and January 2009. Measurements include concentrations of inorganic and organic carbon and nitrogen, bacterial abundance, community structure, production, and respiration.
Use Cases
- Modeling relationships between bacterial production/respiration rates and inorganic carbon concentrations in sea ice brine.
- Analyzing spatial variation in bacterial community structure across 16 sampling stations in the Amundsen Sea.
- Correlating microbial activity measurements with physical sea-ice conditions to identify satellite-measurable proxies.
- Investigating bacterial incorporation and respiration rates of specific organic substrates like amino acids and methyl bromide.
Strengths
- Data spans a unique 3000-mile transect in the poorly studied south Pacific Antarctic sector.
- Includes multiple measurement types (concentrations, biomass, rates) from three sample matrices: ice cores, brine, and seawater.
Limitations
- Sample size is limited to 16 stations, constraining statistical power for spatial analysis.
- Data is from a single expedition in 2008-09, limiting temporal understanding of seasonal or interannual variability.
Provenance
- Source
- Yager research group, likely affiliated with SCIOPS.
- Collection Method
- Field measurements from sea ice cores, brine sackholes, and under-ice seawater collected during the Oden Southern Ocean 2008-2009 expedition.
- Time Range
- November 2008 to January 2009
- Freshness
- null
- Geography
- Amundsen Sea, Antarctic, between 70°S, 107°W and 76°S, 151°W