Improved mesospheric temperature, water vapor and polar mesospheric cloud extinctions from HALOE
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 ret...
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Veröffentlicht in: | Geophysical research letters 2003-04, Vol.30 (8), p.23.1-n/a |
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creator | McHugh, Martin Hervig, Mark Magill, Brian Thompson, R. Earl Remsberg, Ellis Wrotny, Jonathan Russell III, James |
description | 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. |
doi_str_mv | 10.1029/2002GL016859 |
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Earl</au><au>Remsberg, Ellis</au><au>Wrotny, Jonathan</au><au>Russell III, James</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Improved mesospheric temperature, water vapor and polar mesospheric cloud extinctions from HALOE</atitle><jtitle>Geophysical research letters</jtitle><addtitle>Geophys. Res. Lett</addtitle><date>2003-04</date><risdate>2003</risdate><volume>30</volume><issue>8</issue><spage>23.1</spage><epage>n/a</epage><pages>23.1-n/a</pages><issn>0094-8276</issn><eissn>1944-8007</eissn><coden>GPRLAJ</coden><abstract>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. 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subjects | Atmospheric composition. Chemical and photochemical reactions Earth, ocean, space Exact sciences and technology External geophysics Physics of the high neutral atmosphere |
title | Improved mesospheric temperature, water vapor and polar mesospheric cloud extinctions from HALOE |
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