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A global inventory of stratospheric chlorine in 2004

Nassar, R. ; Bernath, P. F. ; Boone, C. D. ; Clerbaux, C. ; Coheur, P. F. ; Dufour, G. ; Froidevaux, L. ; Mahieu, E. ; McConnell, J. C. ; McLeod, S. D. ; Murtagh, D. P. ; Rinsland, C. P. ; Semeniuk, K. ; Skelton, R. ; Walker, K. A. ; Zander, R.

Journal of Geophysical Research, 2006-11, Vol.111 (D22), p.D22312-n/a [Periódico revisado por pares]

Washington, DC: American Geophysical Union

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Título:
A global inventory of stratospheric chlorine in 2004
Autor: Nassar, R. ; Bernath, P. F. ; Boone, C. D. ; Clerbaux, C. ; Coheur, P. F. ; Dufour, G. ; Froidevaux, L. ; Mahieu, E. ; McConnell, J. C. ; McLeod, S. D. ; Murtagh, D. P. ; Rinsland, C. P. ; Semeniuk, K. ; Skelton, R. ; Walker, K. A. ; Zander, R.
Assuntos: ACE-FTS ; Atmosphere ; Atmospheric and Oceanic Physics ; atmospheric composition ; Atmospheric Composition and Structure ; chlorine ; chlorine budget ; composition and chemistry ; constituent transport and chemistry ; Earth sciences ; Earth sciences & physical geography ; Earth, ocean, space ; Exact sciences and technology ; Global Change ; Impacts of global change ; Instruments and techniques ; Middle atmosphere ; Physical, chemical, mathematical & earth Sciences ; Physics ; Physique, chimie, mathématiques & sciences de la terre ; remote sensing ; Sciences de la terre & géographie physique ; stratosphere
É parte de: Journal of Geophysical Research, 2006-11, Vol.111 (D22), p.D22312-n/a
Notas: ark:/67375/WNG-0CNS4K24-X
ArticleID:2006JD007073
istex:0461C612ED2D482BA5CEAE8E4B096F57D30C83CD
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
scopus-id:2-s2.0-34548551528
Descrição: Total chlorine (ClTOT) 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 ±0.09 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.
Editor: Washington, DC: American Geophysical Union
Idioma: Inglês

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A global inventory of stratospheric chlorine in 2004

Nassar, R. ; Bernath, P. F. ; Boone, C. D. ; Clerbaux, C. ; Coheur, P. F. ; Dufour, G. ; Froidevaux, L. ; Mahieu, E. ; McConnell, J. C. ; McLeod, S. D. ; Murtagh, D. P. ; Rinsland, C. P. ; Semeniuk, K. ; Skelton, R. ; Walker, K. A. ; Zander, R.

Washington, DC: American Geophysical Union

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