27032 – Intercontinental Transport and Chemical Transformation Experiment (ITCT)

Investigator’s Annual Reports (IAR’s) for Crater Lake National Park

Intercontinental Transport and Chemical Transformation Experiment (ITCT)


Report Number: 27032

Reporting Year: 2003

Permit Number: CRLA-2002-SCI-0012

Current Status: Checked in

Date Received: Mar 05, 2004

Principal Investigator: Dr Steven Cliff, Department of Applied Science, University of California, Davis, CA

Additional investigator(s): Kevin D. Perry

Park-assigned Study Id. #: CRLA-01010

Permit Expiration Date: Dec 31, 2005

Permit Start Date: Apr 15, 2002

Study Starting Date: Apr 15, 2002

Study Ending Date: Dec 31, 2005

Study Status: Suspended

Activity Type: Research

Subject/Discipline: Atmosphere / Climate / Weather

Objectives: The Intercontinental Transport and Chemical Transformation (ITCT) is a coordinated international research program to address how the transport of chemicals from one continent influence the air quality in other continents, as well as regional and global climate?. Its foci are:

(i) to investigate intercontinental transport of manmade pollution, with an emphasis on ozone, fine particles, and other chemically active “greenhouse” compounds

(ii) to determine the chemical transformation that occurs during this transport.
There is increasing evidence that ozone and fine particles and their precursors, even compounds with reasonably short lifetimes, can be detected at great distances from their sources. The “intercontinental” nature of manmade chemical pollution has been demonstrated in studies over the last decade. ITCT will further the scientific understanding of the consequences – both for air quality and for climate – of this intercontinental transport and transformation. Investigations will initially focus on the Northern Hemisphere, which contains most of the world’s landmasses and population, and where most anthropogenic pollution originates.