HR: 1340h
AN: A33A-0817    [Abstracts]
TI: An Overview of INTEX-B/MILAGRO/IMPEX Instrument and Measurement Intercomparison
AU: * Chen, G
EM: gao.chen@nasa.gov
AF: NASA LaRC, Mail Stop 401B, Hampton, VA 23681-2199, United States
AU: Kleb, M M
EM: mary.m.kleb@nasa.gov
AF: NASA LaRC, Mail Stop 401B, Hampton, VA 23681-2199, United States
AU: Brune, W H
EM: brune@meteo.psu.edu
AF: Pennsylvania State University, 504 Walker Building, University Park, PA 16802, United States
AU: Flocke, F M
EM: ffl@ucar.edu
AF: NCAR, 1850 Table Mesa Drive, Boulder, CO 80305, United States
AB: During the spring of 2006, the INTEX-B/MILAGRO/IMPEX field programs carried out a series of comprehensive multi-platform measurement comparisons, including a number of species/parameters and measurement platforms, with the goal of generating a program-wide unified data set. One important component of these activities was the comparison between NSF C-130 and NASA DC-8, which was carried out through 3 separate ~ one-hour wing-tip to wing-tip formation flights. To be presented is a summary of an objective assessment of consistency between the paired measurements as well as the uncertainties of individual instruments. These results will encompass both gas phase species, ranging from radical species to long-lived species (e.g., HNO3, CFC-12) as well as particulate species including particle microphysical and optical properties and chemical composition. The level of agreement is characterized by either regression slopes and intercepts or a simple ratio between the paired measurements, primarily depending on the range of the variation relative to measurement uncertainty. In addition, the recent INTEX-B/MILAGRO/IMPEX results will also be put in context of previous measurement comparison, e.g. ICARTT/INTEX-NA.
DE: 0300 ATMOSPHERIC COMPOSITION AND STRUCTURE
DE: 0305 Aerosols and particles (0345, 4801, 4906)
DE: 0365 Troposphere: composition and chemistry
DE: 0394 Instruments and techniques
SC: Atmospheric Sciences [A]
MN: 2007 Fall Meeting