Initial validation comparisons for the Atmospheric Chemistry Experiment (ACE-FTS)

K A Walker, C E Randall, C R Trepte, C D Boone, P F Bernath

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[ 1] The Atmospheric Chemistry Experiment Fourier Transform Spectrometer ( ACE-FTS) is the primary instrument for the ACE satellite mission. The initial validation of ozone profiles from ACE-FTS is based on comparisons with profiles from satellite-borne instruments and balloon-borne ozonesondes. The satellite instruments include the SAGE III and POAM III instruments. The ACE profiles were recorded during March 2004 at high latitudes in the northern hemisphere (> 65 degrees N) and were processed with the version 1.0 retrieval algorithm. The ACE-FTS results were found to agree within 10% with those from the other satellite measurements between 15 and 40 km, with ACE-FTS measuring less ozone near the profile maximum. The ACE-FTS has a lower vertical resolution than SAGE III or POAM III and this may contribute to the observed discrepancy. The comparisons with ozonesonde measurements suggest that the ACE-FTS accurately captures vertical structures in the ozone profile that are on the order of several kilometers thick.

Original languageEnglish
Pages (from-to)-
Number of pages5
JournalGeophysical Research Letters
Issue number16
Publication statusPublished - 22 Jun 2005



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