HR: 0800h
AN: A51D-0819    [Abstracts]
TI: The Atmospheric Chemistry Experiment (ACE) on-board SCISAT-1
AU: Boone, C
EM: cboone@uwaterloo.ca
AF: Department of Chemistry, University of Waterloo, 200 University Avenue West, Waterloo, ON N2L 3G1 Canada
AU: * Walker, K A
EM: kwalker@uwaterloo.ca
AF: Department of Chemistry, University of Waterloo, 200 University Avenue West, Waterloo, ON N2L 3G1 Canada
AU: Nassar, R
EM: rnassar@sciborg.uwaterloo.ca
AF: Department of Chemistry, University of Waterloo, 200 University Avenue West, Waterloo, ON N2L 3G1 Canada
AU: McLeod, S D
EM: sdmcleod@uwaterloo.ca
AF: Department of Chemistry, University of Waterloo, 200 University Avenue West, Waterloo, ON N2L 3G1 Canada
AU: Bernath, P F
EM: bernath@uwaterloo.ca
AF: Department of Chemistry, University of Waterloo, 200 University Avenue West, Waterloo, ON N2L 3G1 Canada
AU: McElroy, C T
EM: tom.mcelroy@ec.gc.ca
AF: Meteorological Service of Canada, 4905 Dufferin Street, Downsview, ON M3H 5T4 Canada
AB: The Atmospheric Chemistry Experiment (ACE) is a Canadian scientific satellite mission to perform remote sensing measurements of the Earth's atmosphere. SCISAT-1, the satellite carrying the ACE payload, was successfully launched into low Earth orbit (650 km altitude, 74 degree inclination) on August 12, 2003. The primary instrument on-board SCISAT-1 is a high-resolution (0.02 cm-1) Fourier Transform Spectrometer (ACE-FTS) operating between 750 and 4100 cm-1. Two filtered imagers measure atmospheric extinction due to clouds and aerosols at 0.525 and 1.02 microns. The secondary instrument is a dual spectrograph called MAESTRO (Measurements of Aerosol Extinction in the Stratosphere and Troposphere Retrieved by Occultation) which extends the wavelength coverage to the 280-1000 nm spectral region. The satellite uses solar occultation to obtain altitude profiles of atmospheric trace gas species, temperature and pressure. The goals of the ACE mission are: (1) to measure and to understand the chemical and dynamical processes that control the distribution of ozone in the upper troposphere and stratosphere, with a particular emphasis on the Arctic region; (2) to explore the relationship between atmospheric chemistry and climate change; (3) to study the effects of biomass burning in the free troposphere; (4) to measure aerosol number density, size distribution and composition in order to reduce the uncertainties in their effects on the global energy balance. Initial results and validation comparisons from the ACE mission will be presented.
UR: http://www.ace.uwaterloo.ca
DE: 3360 Remote sensing
DE: 0300 ATMOSPHERIC COMPOSITION AND STRUCTURE
DE: 0394 Instruments and techniques
SC: Atmospheric Sciences [A]
MN: 2004 AGU Fall Meeting