Andy Weinheimer

General Information

ACD - TIIMES
Associate Scientist
UTLS

Contact Information:
PO Box 3000, Boulder, CO 80307-3000
Office: FL0-1142
Telephone: 303-497-1444
Email: wein@ucar.edu

Research Focus FY08:

Andy Weinheimer along with the Community Airborne Research Instrumentation (CARI) group is currently working on a NO-NOy Instrument - Two-channel instrument for the in situ measurement of NO (nitric oxide) and NOy (total reactive nitrogen). This two-channel chemiluminescence instrument will obtain ~1-sec in situ measurements of NO and NOy. Several components of the overall system have been built and tested. Plans for early FY2008 are to complete the development with (1) reconstruction of the main instrument module and modification of other existing components, (2) inlet design and fabrication, (3) CO containment vessel fabrication, (4) configuration into a GV rack, and (5) certification of the entire installation. This will be completed early in FY2008, in preparation for HEFT test flights, so that the instrument will be flight-tested and ready for deployment on the GV in START08.

In The News:

NASA's Flying Laboratory Studies Impact Of Air Pollution On Arctic: National Center for Atmospheric Research (NCAR) scientist Andy Weinheimer makes final adjustments to equipment for measuring active nitrogen in ozone aboard a DC-8 jet to be used by the National Aeronautics and Space Administration (NASA) as a flying laboratory in one of the largest environmental science campaigns ever conducted to study the impact of air pollution on the Arctic's atmospheric chemistry and changing climate, at NASA's Dryden Flight Research Center on March 31, 2008 in Palmdale, CA. For three weeks in April, NASA will use three research aircraft, satellites, weather balloons and more than 100 scientists based in Fairbanks, Alaska to study the "arctic haze" of air pollution that forms from sources across the Northern Hemisphere as part of the Arctic Research of the Composition of the Troposphere from Aircraft and Satellites (ARCTAS) field campaign. In July a second phase of study is scheduled to be conducted out of Alberta and the Northwest Territories of Canada to focus on pollution from large boreal forest fires in northwest Canada. Additional Coverage: daylife.com, Jamd

Looking for Nitrogen (Discovery earthlive April 2008): Thule Airbase, Greenland, April 6, 2008 written by David Knapp about the ARCTAS Mission.

Scientific Talks FY08:

• NCAR NOxyO3 on the DC-8 in ARCTAS (Greenbelt, MD USA, 01/2008)
• START08 / pre-HIPPO In situ Measurements of NO, NOy, O3 from the GV (Broomfield, CO USA, 05/2008)

Publications FY08:

DeCarlo, P. F., E. J. Dunlea, J. R. Kimmel, A. C. Aiken, D. Sueper, J. Crounse, P. O. Wennberg, L. Emmons, Y. Shinozuka, A. Clarke, J. Zhou, J. Tomlinson, D. R. Collins, D. Knapp, A. Weinheimer, D. Montzka, T. Campos, J. L. Jimenez, 2008: Fast airborne aerosol size and chemistry measurements above Mexico City and Central Mexico during the MILAGRO campaign. Atmos. Chem. Phys., 8, 4027-4048.

Shim, C., Q. Li, M. Luo, S. Kulawik, H. Worden, J. Worden, A. Eldering, G. Diskin, G. Sachse, A. Weinheimer, D. Knapp, D. Montzca, T. Campos, 2007: Characterizing mega-city pollution with TES O3 and CO measurement. Atmos. Chem. Phys. Discuss., 7, 15189-15212.