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Measurements of mid...
Measurements of mid-stratospheric formaldehyde from the Odin/SMR instrument
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- Ricaud, P. (författare)
- Universite Paul Sabatier Toulouse III,Paul Sabatier University
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- Alexandre, D. (författare)
- Universite Paul Sabatier Toulouse III,Paul Sabatier University
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- Barret, B. (författare)
- Universite Paul Sabatier Toulouse III,Paul Sabatier University
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- Le Flochmoen, E. (författare)
- Universite Paul Sabatier Toulouse III,Paul Sabatier University
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- Motte, E. (författare)
- Universite Paul Sabatier Toulouse III,Paul Sabatier University
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- Berthet, G. (författare)
- Centre national de la recherche scientifique (CNRS)
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Lefévre, F. (författare)
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- Murtagh, Donal, 1959 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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(creator_code:org_t)
- Elsevier BV, 2007
- 2007
- Engelska.
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Ingår i: Journal of Quantitative Spectroscopy and Radiative Transfer. - : Elsevier BV. - 0022-4073. ; 107:1, s. 91-104
- Relaterad länk:
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http://dx.doi.org/10...
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Abstract
Ämnesord
Stäng
- Measurements of mid-stratospheric formaldehyde (H2CO) have been obtained from the limb-viewing sub-millimeter radiometer (SMR) instrument aboard the Odin satellite. The analysis is based upon the only weak (808 -> 707) rotational transition line Of H2CO that can be measured by Odin/SMR at 576.7083150GHz in the band dedicated to the measurement of carbon monoxide (CO). The signal-to-noise ratio is increased by averaging about 1000 spectra within 2-km width vertical layers in the stratosphere over periods from I to 7 days and within 3 latitude bands: Southern Hemisphere (90 degrees S-45 degrees S), tropics (30 degrees S-30 degrees N), and Northern Hemisphere (45 degrees N-90 degrees N). The faint H2CO line can then be retrieved using the standard scientific ground-segment developed for the Odin/SMR measurements. The mid-stratospheric H2CO shows maxima in the tropics for every period considered (January 2006, February 2005, March 2005, and September 2005). The spring-time extra-tropical mid-strato spheric H2CO is more intense than the fall-time extra-tropical amounts. The simulations from the three-dimensional chemical- transport model Reprobus satisfactorily show these general features. (C) 2007 Elsevier Ltd. All rights reserved.
Ämnesord
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Nyckelord
- remote
- inversion
- CLO
- HETERODYNE MEASUREMENTS
- radiative transfer
- formaldehyde
- CHLORINE MONOXIDE
- SUBMILLIMETER
- stratosphere
- spectroscopy
- MILLIMETER
- satellite
- RADIOMETER
- MODEL
- sensing
- PERFORMANCE
- SATELLITE
- OZONE
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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