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A global inventory ...
A global inventory of stratospheric chlorine in 2004
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- Nassar, R. (author)
- Harvard University,University of Waterloo
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- Bernath, P. F. (author)
- University of Waterloo
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- Boone, C. D. (author)
- University of Waterloo
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- Clerbaux, C. (author)
- Université libre de Bruxelles (ULB)
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- Coheur, P. F. (author)
- Université libre de Bruxelles (ULB)
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- Dufour, G. (author)
- Université Paris-Saclay,University Paris-Saclay
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Froidevaux, L. (author)
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- Mahieu, E. (author)
- Universite de Liège,University of Liège
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- McConnell, J. C. (author)
- York University
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- McLeod, S. D. (author)
- University of Waterloo
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- Murtagh, Donal, 1959 (author)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Rinsland, C. P. (author)
- NASA Langley Research Center
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- Semeniuk, K. (author)
- York University
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- Skelton, R. (author)
- University of Waterloo
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- Walker, K. A. (author)
- University of Toronto,University of Waterloo
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- Zander, R. (author)
- Universite de Liège,University of Liège
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(creator_code:org_t)
- 2006
- 2006
- English.
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In: Journal of Geophysical Research. - 0148-0227 .- 2156-2202. ; 111:22
- Related links:
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http://dx.doi.org/10...
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https://research.cha...
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https://doi.org/10.1...
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Abstract
Subject headings
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- Total chlorine (CITOT) in the stratosphere has been determined using the Atmospheric Chemistry Experiment Fourier Transform Spectrometer (ACE-FTS) measurements of HCl, ClONO2, CH3Cl, CCl4, CCl3F (CFC-11), CCl2F2 (CFC-12), CHClF2 (HCFC-22), CCl2FCClF2 (CFC-113), CH3CClF2 (HCFC-142b), COClF, and ClO supplemented by data from several other sources, including both measurements and models. Separate chlorine inventories were carried out in five latitude zones (60°-82°N, 30°-60°N, 30°S-30°N, 30°-60°S, and 60°-82°S), averaging the period of February 2004 to January 2005 inclusive, when possible, to deal with seasonal variations. The effect of diurnal variation was avoided by only using measurements taken at local sunset. Mean stratospheric ClTOT values of 3.65 ppbv were determined for both the northern and southern midlatitudes (with an estimated 1σ, accuracy of ±0.13 ppbv and a precision of ±.09 ppbv), accompanied by a slightly lower value in the tropics and slightly higher values at high latitudes. Stratospheric ClTOT profiles in all five latitude zones are nearly linear with a slight positive slope in ppbv /km. Both the observed slopes and pattern of latitudinal variation can be interpreted as evidence of the beginning of a decline in global stratospheric chlorine, which is qualitatively consistent with the mean stratospheric circulation pattern and time lag necessary for transport.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Rymd- och flygteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Aerospace Engineering (hsv//eng)
Publication and Content Type
- art (subject category)
- ref (subject category)
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- By the author/editor
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Nassar, R.
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Bernath, P. F.
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Boone, C. D.
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Clerbaux, C.
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Coheur, P. F.
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Dufour, G.
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show more...
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Froidevaux, L.
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Mahieu, E.
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McConnell, J. C.
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McLeod, S. D.
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Murtagh, Donal, ...
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Rinsland, C. P.
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Semeniuk, K.
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Skelton, R.
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Walker, K. A.
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Zander, R.
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show less...
- About the subject
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- ENGINEERING AND TECHNOLOGY
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ENGINEERING AND ...
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and Mechanical Engin ...
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and Aerospace Engine ...
- Articles in the publication
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Journal of Geoph ...
- By the university
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Chalmers University of Technology