HR: 0800h
AN: A51B-0055    [Abstracts]
TI: Integration and Testing of a Disjunct Eddy Accumulation VOC Flux Measurement System in a Research Aircraft
AU: * Garman, K
EM: garman@purdue.edu
AF: Department of Chemistry, Purdue Univeristy, 560 Oval Drive, West Lafayette, IN 47907 United States
AU: Everly, M
EM: meverly@purdue.edu
AF: Jonathan Amy Facility for Chemical Instrumentation, Purdue University, 560 Oval Drive, West Lafayette, IN 47907 United States
AU: Wyss, P
EM: wyss@purdue.edu
AF: Jonathan Amy Facility for Chemical Instrumentation, Purdue University, 560 Oval Drive, West Lafayette, IN 47907 United States
AU: Carlsen, M
EM: carlsen@purdue.edu
AF: Jonathan Amy Facility for Chemical Instrumentation, Purdue University, 560 Oval Drive, West Lafayette, IN 47907 United States
AU: Zimmerman, J
EM: jrzimmer@purdue.edu
AF: Jonathan Amy Facility for Chemical Instrumentation, Purdue University, 560 Oval Drive, West Lafayette, IN 47907 United States
AU: Stirm, B
EM: bhstirm@tech.purdue.edu
AF: Department of Aviation Technology, Purdue University, Hangar 1, Purdue University Airport, West Lafayette, IN 47907 United States
AU: Carney, T
EM: tqcarney@tech.purdue.edu
AF: Department of Aviation Technology, Purdue University, Hangar 1, Purdue University Airport, West Lafayette, IN 47907 United States
AU: Santini, R
EM: rsantini@purdue.edu
AF: Jonathan Amy Facility for Chemical Instrumentation, Purdue University, 560 Oval Drive, West Lafayette, IN 47907 United States
AU: Shepson, P
EM: pshepson@purdue.edu
AF: Department of Chemistry, Purdue Univeristy, 560 Oval Drive, West Lafayette, IN 47907 United States
AB: Biogenic Volatile Organic Compound (BVOC) fluxes can now be measured using Disjunct Eddy Accumulation (DEA). This method is primarily applied from fixed towers above forest canopies to study biosphere-atmosphere exchange processes. To expand these tower-based BVOC measurements to spatial scales beyond the tower footprint, an aircraft-based DEA platform is required. Among the significant challenges to such an approach is the capability to determine the vertical component of atmospheric wind from the aircraft with adequate precision and accuracy. The design of a suitable airborne sampling system is another significant challenge. The development of the Airborne Laboratory for Atmospheric Research (ALAR) is described herein. We describe the DEA design and installation along with calibration results which characterize the uncertainties of the vertical wind component measurement. We also describe initial tests of the DEA sampling system, the capabilities of the final installation, and the expected flux uncertainties.
DE: 0365 Troposphere: composition and chemistry
DE: 0368 Troposphere: constituent transport and chemistry
DE: 0394 Instruments and techniques
DE: 0428 Carbon cycling (4806)
SC: Atmospheric Sciences [A]
MN: Fall Meeting 2005