| HAL: hal-00328228, version 1 |
| Detailed view | Export this paper |
|
|
| Atmospheric Chemistry and Physics Discussions 7, 4 (2007) 12463-12539 |
|
|
|
|
| Validation of the Atmospheric Chemistry Experiment (ACE) version 2.2 temperature using ground-based and space-borne measurements |
|
|
| R. J. Sica 1M. R. M. Izawa 2 |
|
|
| (2007-08-23) |
|
|
| 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. |
|
|
|
|
|
|
|
|
|
|
| 1: | Department of Physics and Astronomy |
| The University of Western Ontario | |
| 2: | Department of Earth Sciences |
| The University of Western Ontario | |
| 3: | Department of Chemistry |
| University of Waterloo | |
| 4: | Department of Physics |
| Department of Physics | |
| 5: | Institute of Space and Atmospheric Studies |
| Institute of Space and Atmospheric Studies | |
| 6: | Department of Physics |
| Department of Physics | |
| 7: | Department of Chemistry |
| Department of Chemistry | |
| 8: | Ice |
| ocean | |
| 9: | Laboratoire de physique et chimie de l'environnement (LPCE) |
| CNRS : UMR6115 – INSU – Université d'Orléans | |
| 10: | Geophysical Institute and Atmospheric Sciences Program |
| University of Alaska Fairbanks | |
| 11: | Columbus Technologies Inc. |
| Columbus Technologies Inc. | |
| 12: | Belgian Institute for Space Aeronomy / Institut d'Aéronomie Spatiale de Belgique (BIRA-IASB) |
| Belgian Institute for Space Aeronomy | |
| 13: | Science and Technology Branch |
| Environment Canada | |
| 14: | Leibniz-Institute of Atmospheric Physics |
| Leibniz-Institute of Atmospheric Physics | |
| 15: | Service d'aéronomie (SA) |
| CNRS : UMR7620 – INSU – Université Pierre et Marie Curie [UPMC] - Paris VI – Université de Versailles Saint-Quentin-en-Yvelines | |
| 16: | Finnish Meteorological Institute – Arctic Research Centre |
| Finnish Meteorological Institute – Arctic Research Centre | |
| 17: | Jet Propulsion Laboratory [NASA] (JPL) |
| NASA – California Institute of Technology | |
| 18: | New Mexico Institute of Mining and Technology |
| New Mexico Institute of Mining and Technology | |
| 19: | National Institute of Information and Communications Technology (NICT) |
| National Institute of Information and Communications Technology | |
| 20: | Department of Atmospheric |
| Oceanic and Planetary Physics | |
| 21: | Istituto di Fisica Applicata 'Nello Carrara' (IFAC) del Consiglio Nazionale delle Ricerche (CNR) |
| Istituto di Fisica Applicata 'Nello Carrara' (IFAC) del Consiglio Nazionale delle Ricerche (CNR) | |
| 22: | Dip. di Chimica Fisica e Inorganica |
| Dip. di Chimica Fisica e Inorganica | |
| 23: | Deutsche Wetterdienst (DWD) |
| Deutsche Wetterdienst (DWD) | |
| 24: | Federal Office of Meteorology and Climatology |
| Federal Office of Meteorology and Climatology | |
|
|
|
|
|
|
|
|
| Subject | : | Sciences of the Universe/Ocean, Atmosphere |
|
|
| Attached file list to this document: | |||||
|
|
|
| hal-00328228, version 1 | |
| http://hal.archives-ouvertes.fr/hal-00328228 | |
| oai:hal.archives-ouvertes.fr:hal-00328228 | |
| From: Publication EGU | |
| Submitted on: Thursday, 23 August 2007 08:00:00 | |
| Updated on: Friday, 10 October 2008 08:38:20 | |