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Proceedings Paper

Atmospheric chemistry experiment (ACE): mission overview and early results
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Paper Abstract

SciSat-1, otherwise known as the Atmospheric Chemistry Experiment (ACE), is a Canadian satellite mission for remote sensing of the Earth's atmosphere. It was launched into low Earth orbit (altitude 650 km, inclination 74 degrees) in August 2003. The primary instrument onboard ACE is a high resolution (maximum path difference ± 25 cm) Fourier Transform Spectrometer (FTS) operating from 2.4 to 13.3 microns (750-4100 cm-1). The satellite also features a dual spectrograph known as MAESTRO with wavelength coverage 280-1000 nm and resolution 1-2 nm. A pair of filtered CMOS detector arrays takes images of the sun at 0.525 and 1.02 nm. Working primarily in solar occultation, the satellite provides altitude profile information for temperature, pressure, and the volume mixing ratios for several dozen molecules of atmospheric interest. Scientific goals for ACE include: (1) understanding the chemical and dynamical processes that control the distribution of ozone in the stratosphere and upper troposphere; (2) exploring the relationship between atmospheric chemistry and climate change; (3) studying the effects of biomass burning in the free troposphere; and (4) measuring aerosols to reduce the uncertainties in their effects on the global energy balance.

Paper Details

Date Published: 14 December 2004
PDF: 11 pages
Proc. SPIE 5584, Chemical and Biological Standoff Detection II, (14 December 2004); doi: 10.1117/12.579945
Show Author Affiliations
Christopher D. Boone, Univ. of Waterloo (Canada)
Kaley A. Walker, Univ. of Waterloo (Canada)
Sean D. McLeod, Univ. of Waterloo (Canada)
Ray Nassar, Univ. of Waterloo (Canada)
Peter F. Bernath, Univ. of Waterloo (Canada)

Published in SPIE Proceedings Vol. 5584:
Chemical and Biological Standoff Detection II
James O. Jensen; Jean-Marc Theriault, Editor(s)

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