Atmospheric Chemistry Experiment (ACE): Mission overview

P F Bernath, C T McElroy, M C Abrams, C D Boone, M Butler, C Camy-Peyret, M Carleer, C Clerbaux, P F Coheur, R Colin, P DeCola, P F Bernath, C T McElroy, M C Abrams, C D Boone, M Butler, C Camy-Peyret, M Carleer, C Clerbaux, P F CoheurR Colin, P DeCola, M DeMaziere, J R Drummond, D Dufour, W F J Evans, H Fast, D Fussen, K Gilbert, D E Jennings, E J Llewellyn, R P Lowe, E Mahieu, J C McConnell, M McHugh, S D McLeod, R Michaud, C Midwinter, R Nassar, F Nichitiu, C Nowlan, C P Rinsland, Y J Rochon, N Rowlands, K Semeniuk, P Simon, R Skelton, J J Sloan, M A Soucy, K Strong, P Tremblay, D Turnbull, K A Walker, I Walkty, D A Wardle, V Wehrle, R Zander, J Zou

Research output: Contribution to journalArticlepeer-review


SCISAT-1, also 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 circular orbit ( altitude 650 km, inclination 74 degrees) on 12 Aug. 2003. The primary ACE instrument is a high spectral resolution (0.02 cm(-1)) Fourier Transform Spectrometer (FTS) operating from 2.2 to 13.3 mm ( 750 - 4400 cm(-1)). The satellite also features a dual spectrophotometer known as MAESTRO with wavelength coverage of 285 - 1030 nm and spectral resolution of 1 - 2 nm. A pair of filtered CMOS detector arrays records images of the Sun at 0.525 and 1.02 mu m. Working primarily in solar occultation, the satellite provides altitude profile information ( typically 10 - 100 km) for temperature, pressure, and the volume mixing ratios for several dozen molecules of atmospheric interest, as well as atmospheric extinction profiles over the latitudes 85 degrees N to 85 degrees S. This paper presents a mission overview and some of the first scientific results.

Original languageEnglish
Pages (from-to)-
Number of pages5
JournalGeophysical Research Letters
Issue number15
Publication statusPublished - 3 Jun 2005

Cite this