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AGU: Geophysical Research Letters

 

Index Terms

  • Atmospheric Composition and Structure: Cloud physics and chemistry
  • Atmospheric Composition and Structure: Middle atmosphere—composition and chemistry
  • Atmospheric Composition and Structure: Instruments and techniques
  • Global Change: Atmosphere
  • Global Change: Instruments and techniques

Abstract

Improved mesospheric temperature, water vapor and polar mesospheric cloud extinctions from HALOE

Martin McHugh

GATS Inc., Newport News, Virginia, USA

Mark Hervig

GATS Inc., Newport News, Virginia, USA

Brian Magill

GATS Inc., Newport News, Virginia, USA

R. Earl Thompson

GATS Inc., Newport News, Virginia, USA

Ellis Remsberg

NASA Langley Research Center, Hampton, Virginia, USA

Jonathan Wrotny

Hampton University, Hampton, Virginia, USA

James Russell III

Hampton University, Hampton, Virginia, USA

We present a new retrieval technique for mesospheric measurements from the Halogen Occultation Experiment (HALOE). Previous HALOE retrievals did not account for polar mesospheric clouds (PMCs) and were biased whenever PMCs were in the sample volume. In the new algorithm we eliminate this bias by retrieving and correcting for PMC extinction, and we optimize the algorithm for this region of the atmosphere. We have reprocessed over ten years (1991–2002) of HALOE data with the improved algorithm, yielding nearly 75,000 vertical profiles of temperature, H2O, O3, NO and extinction at five infrared wavelengths. In this paper we describe the new algorithm in detail, present several examples of the results and discuss some initial validation and quality assessments.

Published 29 April 2003.

Citation: McHugh, M., M. Hervig, B. Magill, R. E. Thompson, E. Remsberg, J. Wrotny, and J. Russell III (2003), Improved mesospheric temperature, water vapor and polar mesospheric cloud extinctions from HALOE, Geophys. Res. Lett., 30(8), 1440, doi:10.1029/2002GL016859.

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