HR: 14:00h
AN: A53D-02 INVITED     [Abstracts]
TI: Validation Program for the Atmospheric Chemistry Experiment (ACE): Overview and Initial Results
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: Boone, C
EM: cboone@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: Strong, K
EM: strong@atmosp.physics.utoronto.ca
AF: Department of Physics, University of Toronto, 60 St. George Street, Toronto, ON M5S 1A7 Canada
AU: Randall, C E
EM: Cora.Randall@lasp.colorado.edu
AF: Laboratory for Atmospheric and Space Physics, University of Colorado, UCB 392, Boulder, CO 80309-0392 United States
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 designed to make remote sensing measurements of the Earth's atmosphere. The SCISAT-1 satellite, carrying the ACE payload, was successfully launched into a 650 km altitude, 74 degree inclination orbit 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. It also contains two filtered imagers to measure atmospheric extinction due to clouds and aerosols at 0.525 and 1.02 microns. The secondary instrument is a dual UV-visible-NIR spectrograph called MAESTRO which extends the wavelength coverage to the 280-1000 nm spectral region. Both instruments use solar occultation to obtain profiles of atmospheric trace gas species, temperature and pressure. The ACE Validation Program was developed to validate the level 2 profile results from the ACE mission. The program involves comparisons with results from experiments such as satellite-based instruments, balloon and aircraft campaigns and ground-based observations. The validation process is to be undertaken in two phases. Initial comparisons are primarily being made with results from satellite-based instruments. Throughout the life of the mission there will be ongoing comparisons to ground-, balloon-, and aircraft-based experiments as well as satellite data. A group of validation experiment teams from around the world has been assembled to collaborate on the ACE validation program. The plans for validation of the ACE level 2 data products will be outlined and initial validation comparison results 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