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last modified 2010-09-28 22:28

A Project of NOAA’s Climate Forcing and Air Quality Programs for the International Polar Year 2008

NOAA – ARCPAC (Aerosol, Radiation, and Cloud Processes affecting Arctic Climate)

ARCPAC was established as an airborne field experiment in Alaska to address the four major areas of non-greenhouse-gas atmospheric climate processes in the Arctic. A NOAA WP-3D aircraft was used for the experiment, and was based at Fairbanks, Alaska.

Organization: The National Oceanic and Atmospheric Administration (NOAA)
Country: USA
Location: Fairbanks, Alaska
Platform: P3 aircraft
Dates: April 1-25, 2008
Contact: C. Brock, NOAA

----------- Seeking to answer:
What are human-caused processes (other than long-lived GHG-induced climate change) that may increase Arctic warming and/or sea ice melt?

By examing:

  • Lower tropospheric warming due to absorption of solar radiation by soot particles
  • Decrease in snow albedo by deposited soot
  • Increase in IR emissivity of clouds by aerosol indirect effect
  • Tropospheric O3 forcing (local IR and global)

Where: Fairbanks, Alaska

When: late March - April 2008

How: The focus of the NOAA airborne measurement component of this project will be the NOAA WP-3D platform.

Who: Investigators in this project include researchers from several universities, industries, and governmental agencies. Participating institutions include ETH Zurich and Georgia Tech.

For more information:


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