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AGU: Geophysical Research Letters

 

Index Terms

  • Atmospheric Composition and Structure: Aerosols and particles
  • Atmospheric Composition and Structure: Cloud physics and chemistry
  • Atmospheric Composition and Structure: Cloud/radiation interaction
  • Atmospheric Composition and Structure: Radiation: transmission and scattering
  • Atmospheric Composition and Structure: Instruments and techniques

Abstract

GEOPHYSICAL RESEARCH LETTERS, VOL. 32, L15S07, 4 PP., 2005
doi:10.1029/2005GL022428

Properties of high-altitude tropical cirrus clouds determined from ACE FTS observations

M. N. Eremenko

Departments of Chemistry and Physics, University of Waterloo, Waterloo, Ontario, Canada

A. Y. Zasetsky

Departments of Chemistry and Physics, University of Waterloo, Waterloo, Ontario, Canada

C. D. Boone

Departments of Chemistry and Physics, University of Waterloo, Waterloo, Ontario, Canada

J. J. Sloan

Departments of Chemistry and Physics, University of Waterloo, Waterloo, Ontario, Canada

During tropical observations made in February and August of 2004, the Atmospheric Chemistry Experiment (ACE) FTIR instrument aboard the Canadian SciSat-1 satellite recorded several extinction spectra in the range of 700–4400 cm−1 that exhibit strong signatures of cirrus clouds. We have analyzed these spectra in order to quantify the properties of these high-altitude cirrus clouds. This Letter reports the vertical profiles of the average ice density in the clouds and the particle size distributions. We also discuss the effect of particle shape on the retrieval results.

Received 12 January 2005; accepted 16 March 2005; published 3 June 2005.

Citation: Eremenko, M. N., A. Y. Zasetsky, C. D. Boone, and J. J. Sloan (2005), Properties of high-altitude tropical cirrus clouds determined from ACE FTS observations, Geophys. Res. Lett., 32, L15S07, doi:10.1029/2005GL022428.

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