Trinidad Head, California was the site of extensive ground based and some balloon-borne measurements during April - May, 2002. This ground site component of the ITCT 2002 project was intended to:

• characterize chemical composition of marine boundary layer at the U.S. West Coast.
• provide linkage between composition measurements and radiative properties of the aerosols.
• provide intercomparison opportunities, both between co-located surface instruments and between surface and aircraft instruments during aircraft flybys.

The measurement portion of this project is completed. Scientists are analyzing and synthesizing the data.

NOAA's Atmospheric Research Campaign
Combining Climate Change and Air Quality Research

NOAA Research Earth System Research Laboratory Chemical Sciences Division
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