Validation of the Atmospheric Chemistry Experiment (ACE) version 2.2 temperature using ground-based and space-borne measurements

R. J. Sica 1 M. R. M. Izawa 2 K. A. Walker 3, 4 C. Boone 3 S. V. Petelina 5, 6 P. S. Argall 1 P. Bernath 3, 7 G. B. Burns 8 Valéry Catoire 9 R. L. Collins 10 W. H. Daffer 11 C. de Clercq 12 Z. Y. Fan 3 B. J. Firanski 13 W. J. R. French 8 P. Gerard 12 M. Gerding 14 J. Granville 12 J. L. Innis 8 Philippe Keckhut 15 T. Kerzenmacher 4 A. R. Klekociuk 8 E. Kyrö 16 J. C. Lambert 12 E. J. Llewellyn 5 G. L. Manney 17, 18 I. S. Mcdermid 17 K. Mizutani 19 Y. Murayama 19 C. Piccolo 20 P. Raspollini 21 M. Ridolfi 22 C. Robert 9 W. Steinbrecht 23 K. B. Strawbridge 13 K. Strong 4 R. Stübi 24 B. Thurairajah 10
Abstract : An ensemble of space-borne and ground-based instruments has been used to evaluate the quality of the version 2.2 temperature retrievals from the Atmospheric Chemistry Experiment Fourier Transform Spectrometer (ACE-FTS). The agreement of ACE-FTS temperatures with other sensors is typically better than 2 K in the stratosphere and upper troposphere and 5 K in the lower mesosphere. There is evidence of a systematic high bias (roughly 3–6 K) in the ACE-FTS temperatures in the mesosphere, and a possible systematic low bias (roughly 2 K) in ACE-FTS temperatures near 23 km. Some ACE-FTS temperature profiles exhibit unphysical oscillations, a problem fixed in preliminary comparisons with temperatures derived using the next version of the ACE-FTS retrieval software. Though these relatively large oscillations in temperature can be on the order of 10 K in the mesosphere, retrieved volume mixing ratio profiles typically vary by less than a percent or so. Statistical comparisons suggest these oscillations occur in about 10% of the retrieved profiles. Analysis from a set of coincident lidar measurements suggests that the random error in ACE-FTS version 2.2 temperatures has a lower limit of about ±2 K.
Document type :
Journal articles
Complete list of metadatas

Cited literature [32 references]  Display  Hide  Download
Contributor : Publication Egu <>
Submitted on : Thursday, August 23, 2007 - 8:00:00 AM
Last modification on : Friday, September 20, 2019 - 8:20:04 AM
Long-term archiving on : Tuesday, October 9, 2012 - 10:46:13 AM


Explicit agreement for this submission



R. J. Sica, M. R. M. Izawa, K. A. Walker, C. Boone, S. V. Petelina, et al.. Validation of the Atmospheric Chemistry Experiment (ACE) version 2.2 temperature using ground-based and space-borne measurements. Atmospheric Chemistry and Physics Discussions, European Geosciences Union, 2007, 7 (4), pp.12463-12539. ⟨10.5194/acpd-7-12463-2007⟩. ⟨hal-00328228⟩



Record views


Files downloads