 |
| Titel |
Validation of the Atmospheric Chemistry Experiment (ACE) version 2.2 temperature using ground-based and space-borne measurements |
| VerfasserIn |
R. J. Sica, M. R. M. Izawa, K. A. Walker, C. Boone, S. V. Petelina, P. S. Argall, P. Bernath, G. B. Burns, V. Catoire, R. L. Collins, W. H. Daffer, C. Clercq, Z. Y. Fan, B. J. Firanski, W. J. R. French, P. Gerard, M. Gerding, J. Granville, J. L. Innis, P. Keckhut, T. Kerzenmacher, A. R. Klekociuk, E. Kyrö, J. C. Lambert, E. J. Llewellyn, G. L. Manney, I. S. McDermid, K. Mizutani, Y. Murayama, C. Piccolo, P. Raspollini, M. Ridolfi, C. Robert, W. Steinbrecht, K. B. Strawbridge, K. Strong, R. Stübi, B. Thurairajah |
| Medientyp |
Artikel
|
| Sprache |
Englisch
|
| ISSN |
1680-7316
|
| Digitales Dokument |
URL |
| Erschienen |
In: Atmospheric Chemistry and Physics ; 8, no. 1 ; Nr. 8, no. 1 (2008-01-08), S.35-62 |
| Datensatznummer |
250005334
|
| Publikation (Nr.) |
 copernicus.org/acp-8-35-2008.pdf |
|
|
|
|
|
| Zusammenfassung |
| 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. |
| |
|
| Teil von |
|
|
|
|
|
|
|
|