2013-2014 Science Planning Summaries
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Reactive gas chemistry in the Dome C snowpack and its influence on surface-layer chemistry and ice-core records

Program Manager:
Dr. Peter Milne

Event Number: O-233-M

ASC POC/Implementer:
Leslie Blank / Elizabeth Kauffman

Dr. Detlev Helmig (Principal Investigator)

University of Colorado Boulder
Boulder, Colorado

Supporting Stations:  McMurdo Station
Research Locations:  Dome C

Project Description:
This US-French collaborative project will investigate snow photochemical processes, their influence on surface exchanges, and the potential impact of this chemistry on the conservation of atmospheric composition in ice cores. It entails the installation and operation of an air sampling system for the continuous, year-round sampling and analysis of snow interstitial air (SIA) drawn from within the snowpack and from the above-snow atmospheric surface layer at Dome C. Over two summers and one winter, the sensors will collect data on highly vertically resolved continuous ozone, carbon monoxide, carbon dioxide, and gasesous elemental mercury (GEM) chemical gradient from within the snowpack to two meters depth and from three above-surface inlets representing the lowest 10 meters of the atmosphere at Dome C.

Field Season Overview:
As early as possible in the 2013-14 field season, four participants will deploy to Dome C to continue their air sampling work. At the end of the season they will remove their instrumentation before before Dome C closes for the winter.

Deploying Team Members:

  • Detlev Helmig (PI)
  • Joel Savarino (Co-PI)
  • William Vicars

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