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Minimize RSR Award Detail

Research Spending & Results

Award Detail

  • Yuan Gao
Award Date:07/21/2014
Estimated Total Award Amount: $ 329,697
Funds Obligated to Date: $ 329,697
  • FY 2016=$108,570
  • FY 2015=$115,863
  • FY 2014=$105,264
Start Date:10/01/2014
End Date:09/30/2020
Transaction Type:Grant
Awarding Agency Code:4900
Funding Agency Code:4900
CFDA Number:47.050
Primary Program Source:040100 NSF RESEARCH & RELATED ACTIVIT
Award Title or Description:Collaborative Research: GEOTRACES Arctic Section: Sampling and Analyses of Atmospheric Deposition
Federal Award ID Number:1435871
DUNS ID:130029205
Parent DUNS ID:001912864
Program:ANS-Arctic Natural Sciences
Program Officer:
  • Henrietta Edmonds
  • (703) 292-7427

Awardee Location

Street:Blumenthal Hall, Suite 206
Awardee Cong. District:10

Primary Place of Performance

Organization Name:Rutgers University at Newark
Street:101 Warren Street
Cong. District:10

Abstract at Time of Award

In this project, a group of investigators participating in the 2015 U.S. GEOTRACES Arctic Ocean expedition will study the distribution of a variety of trace elements in seawater, sea ice, and marine air. It is important to understand where they are and how they move in the Arctic because some trace elements are essential to life, others are known biological toxins, and still others are important because they can be used as tracers of a variety of physical, chemical, and biological processes in the sea. In common with other multinational initiatives in the International GEOTRACES Program, the goals of the U.S. Arctic expedition are to identify processes and quantify fluxes that control the distributions of key trace elements and isotopes in the ocean, and to establish the sensitivity of these distributions to changing environmental conditions. This multi-institutional team of ocean trace element experts will focus its attention on the importance of aerosol, precipitation, and sea ice melt water in trace element cycling. Results from this work will be disseminated through public educational initiatives, such as web communications and outreach to members of the public, including indigenous populations in Alaska. The project will also provide training for graduate and undergraduate students in biology and chemistry. Atmospheric deposition is an important pathway and transport mechanism of both natural aerosols and contaminants to the ocean. Relative to other regions, atmospheric deposition rates in the Arctic are low and aerosols and dissolved chemicals in precipitation may be deposited directly to the sea surface or, unique to polar regions, onto sea ice. Given the unique biogeochemical processes of the region and its rapid changes in response to global climate change, quantifying the current atmospheric deposition of trace elements and isotopes to differing catchments (ocean, sea ice, and melt ponds) in the Arctic is critical to our ability to predict how their distribution may evolve over time. In this study, aerosol, precipitation, and melt water samples will be collected and analyzed for trace elements and isotopes in order to evaluate the impacts on the surface ocean and sea ice chemistry from natural and anthropogenic aerosols. Through this project, collected atmospheric samples from the Arctic will also be made available for distribution to the broader scientific community.

Publications Produced as a Result of this Research

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P. Mukherjee, M. Glamocliga, Y. Gao "Insignificant Impact of Freezing and Compaction on Iron Solubility in Natural Snow" Journal of Atmospheric Chemistry, v., 2018, p.. doi:DOI 10.1007/s10874-018-9375-2 

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