HR: 1330h
AN: AE32A-0156    [PDF]
TI: Trace Gas Transport and Lightning NO$_{x}$ Production during a CRYSTAL-FACE Thunderstorm Simulated using a 3-D Cloud-Scale Chemical Transport Model
AU: * Ott, L
EM: leo@atmos.umd.edu
AF: Department of Meteorology, University of Maryland, College Park, MD 20742 United States
AU: Pickering, K
EM: pickerin@atmos.umd.edu
AF: Department of Meteorology, University of Maryland, College Park, MD 20742 United States
AU: Stenchikov, G
EM: gera@envsci.rutgers.edu
AF: Department of Environmental Sciences, Rutgers University, 14 College Farm Road, New Brunswick, NJ 08901-8551 United States
AU: Lin, R
EM: lin@agnes.gsfc.nasa.gov
AF: Goddard Earth Sciences and Technology Center/University of Maryland Baltimore County, Code 912 NASA Goddard Space Flight Center Greenbelt Road, Greenbelt, MD 20771-0001 United States
AU: Ridley, B
EM: ridley@ucar.edu
AF: Atmospheric Chemistry Division, National Center for Atmospheric Research, P.O. Box 3000, Boulder, CO 80307-3000 United States
AU: Lopez, J
EM: jlopez@mail.arc.nasa.gov
AF: NASA Ames Reseach Center, Mail Stop 245-5, Moffett Field, CA 94035-1000 United States
AU: Loewenstein, M
EM: Max.Loewenstein-1@nasa.gov
AF: NASA Ames Reseach Center, Mail Stop 245-5, Moffett Field, CA 94035-1000 United States
AU: Richard, E
EM: richard@al.noaa.gov
AF: NOAA Aeronomy Lab, 325 Broadway, Boulder, CO 80305-3328 United States
AB: As part of the Cirrus Regional Study of Tropical Anvils and Cirrus Layers - Florida Area Cirrus Experiment (CRYSTAL-FACE), a number of thunderstorms were observed by aircraft and radar in July, 2002. Measurements of CO, O$_{3}$, and NO were conducted onboard the NASA WB-57 within the anvils of the Florida storms. Observations of cloud-to-ground lightning were available from the National Lightning Detection Network for the project's duration. Selected CRYSTAL-FACE storms were simulated using the PSU/NCAR mesoscale model (MM5) and the resulting meteorological fields were used to drive an offline cloud scale chemical transport model (CSCTM) developed at the University of Maryland. The transport of CO, NO$_{x}$, and O$_{3}$ was simulated, as was the production of NO$_{x}$ by lightning. Transport in the model was tested through comparisons of the probability distributions of simulated CO and O$_{3}$ with those constructed from the anvil observations. An estimate of NO$_{x}$ production per lightning flash is obtained by comparing in situ chemical observations with model results.
DE: 0320 Cloud physics and chemistry
DE: 0368 Troposphere--constituent transport and chemistry
DE: 3314 Convective processes
DE: 3324 Lightning
SC: Atmospheric and Space Electricity [AE]
MN: 2003 Fall Meeting