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

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

Apr 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003georl..30h..23m&link_type=abstract

Geophysical Research Letters, Volume 30, Issue 8, pp. 23-1, CiteID 1440, DOI 10.1029/2002GL016859

Physics

13

Global Change: Atmosphere (0315, 0325), 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: Instruments And Techniques

Scientific paper

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.

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