World Library  


Add to Book Shelf
Flag as Inappropriate
Email this Book

Stratospheric Lifetimes of Cfc-12, Ccl4, Ch4, Ch3Cl and N2O from Measurements Made by the Atmospheric Chemistry Experiment-fourier Transform Spectrometer (Ace-fts) : Volume 13, Issue 2 (14/02/2013)

By Brown, A. T.

Click here to view

Book Id: WPLBN0003996640
Format Type: PDF Article :
File Size: Pages 67
Reproduction Date: 2015

Title: Stratospheric Lifetimes of Cfc-12, Ccl4, Ch4, Ch3Cl and N2O from Measurements Made by the Atmospheric Chemistry Experiment-fourier Transform Spectrometer (Ace-fts) : Volume 13, Issue 2 (14/02/2013)  
Author: Brown, A. T.
Volume: Vol. 13, Issue 2
Language: English
Subject: Science, Atmospheric, Chemistry
Collections: Periodicals: Journal and Magazine Collection, Copernicus GmbH
Historic
Publication Date:
2013
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

Citation

APA MLA Chicago

Volk, C. M., Schoeberl, M. R., Boone, C. D., Brown, A. T., & Bernath, P. F. (2013). Stratospheric Lifetimes of Cfc-12, Ccl4, Ch4, Ch3Cl and N2O from Measurements Made by the Atmospheric Chemistry Experiment-fourier Transform Spectrometer (Ace-fts) : Volume 13, Issue 2 (14/02/2013). Retrieved from http://www.ebooklibrary.org/


Description
Description: Department of Physics, University of York, Heslington, YO10 5DD, UK. Long lived halogen-containing compounds are important atmospheric constituents since they can act both as a source of chlorine radicals, which go on to catalyse ozone loss, and as powerful greenhouse gases. The long term impact of these species on the ozone layer is dependent on their stratospheric lifetimes. Using observations from the Atmospheric Chemistry Experiment Fourier Transform Spectrometer (ACE-FTS) we present calculations of the stratospheric lifetimes of CFC-12, CCl4, CH4, CH3Cl and N2O. The lifetimes were calculated using the slope of the tracer-tracer correlation of these species with CFC-11 at the tropopause. The correlation slopes were corrected for the changing atmospheric concentrations of each species based on age of air and CFC-11 measurements from samples taken aboard the Geophysica aircraft – along with the effective linear trend of the VMR from tropical ground-based AGAGE sites. Stratospheric lifetimes were calculated using a CFC-11 lifetime of 45 yr. These calculations produced values of 113 + (−) 26 (18) yr (CFC-12), 35 + (−) 11 (7) yr (CCl4), 195 + (−) 75 (42) yr (CH4), 69 + (−) 65 (23) yr (CH3Cl) and 123 + (−) 53 (28) yr (N2O). The errors on these values are the weighted 1-σ non-systematic errors. The stratospheric lifetime of CH3Cl represents the first calculations of the stratospheric lifetime of CH3Cl using data from a space based instrument.

Summary
Stratospheric lifetimes of CFC-12, CCl4, CH4, CH3Cl and N2O from measurements made by the Atmospheric Chemistry Experiment-Fourier Transform Spectrometer (ACE-FTS)

Excerpt
Bernath, P. F.: Atmospheric chemistry experiment (ACE): analytical chemistry from orbit, TrAC Trends Anal. Chem., 25, 647–654, doi:10.1016/j.trac.2006.05.001, 2006.; Bernath, P. F., McElroy, C. T., Abrams, M. C., Boone, C. D., Butler, M., Camy-Peyret, C., Carleer, M., Clerbaux, C., Coheur, P. F., Colin, R., DeCola, P., DeMazière, M., Drummond, J. R., Dufour, D., Evans, W. F. J., Fast, H., Fussen, D., Gilbert, K., Jennings, D. E., Llewellyn, E. J., Lowe, R. P., Mahieu, E., McConnell, J. C., McHugh, M., McLeod, S. D., Michaud, R., Midwinter, C., Nassar, R., Nichitiu, F., Nowlan, C., Rinsland, C. P., Rochon, Y. J., Rowlands, N., Semeniuk, K., Simon, P., Skelton, R., Sloan, J. J., Soucy, M. A., Strong, K., Tremblay, P., Turnbull, D., Walker, K. A., Walkty, I., Wardle, D. A., Wehrle, V., Zander, R., and Zou, J.: Atmospheric Chemistry Experiment (ACE): mission overview, Geophys. Res. Lett., 32, L15S01, doi:10.1029/2005gl022386, 2005.; Boone, C. D., Nassar, R., Walker, K. A., Rochon, Y., McLeod, S. D., Rinsland, C. P., and Bernath, P. F.: Retrievals for the atmospheric chemistry experiment Fourier-transform spectrometer, Appl. Opt., 44, 7218–7231, 2005.; Brown, A. T., Chipperfield, M. P., Boone, C., Wilson, C., Walker, K. A., and Bernath, P. F.: Trends in atmospheric halogen containing gases since 2004, J. Quant. Spectrosc. Ra., 112, 2552–2566, doi:10.1016/j.jqsrt.2011.07.005, 2011.; Bujok, O., Tan, V., Klein, E., Nopper, R., Bauer, R., Engel, A., Gerhards, M.-T., Afchine, A., McKenna, D. S., Schmidt, U., Wienhold, F. G., and Fischer, H.: GHOST – a novel airborne gas chromatograph for in situ measurements of long-lived tracers in the lower stratosphere: method and applications, J. Atmos. Chem., 39, 37–64, doi:10.1023/a:1010789715871, 2001.; Cox, M. L., Sturrock, G. A., Fraser, P. J., Siems, S. T., Krummel, P. B., and O'Doherty, S.: Regional sources of methyl chloride, chloroform and dichloromethane identified from AGAGE observations at Cape Grim, Tasmania, 1998–2000, J. Atmos. Chem., 45, 79–99, doi:10.1023/a:1024022320985, 2003.; Cunnold, D. M., Weiss, R. F., Prinn, R. G., Hartley, D., Simmonds, P. G., Fraser, P. J., Miller, B., Alyea, F. N., and Porter, L.: GAGE/AGAGE measurements indicating reductions in global emissions of CCl3F and CCl2F2 in 1992–1994, J. Geophys. Res., 102, 1259–1269, doi:10.1029/96jd02973, 1997.; Cun

 

Click To View

Additional Books


  • Measurements of Photo-oxidation Products... (by )
  • Evaluation of a Photosynthesis-based Bio... (by )
  • How to Improve the Air Quality Over Mega... (by )
  • Analysis of Present Day and Future Oh an... (by )
  • Optical and Geometrical Characteristics ... (by )
  • Oxygen Isotopic Signature of Co2 from Co... (by )
  • Enhancement of N2O During the October–no... (by )
  • Interannual Variability of Long-range Tr... (by )
  • Climate Forced Air-quality Modeling at U... (by )
  • A Review of Biomass Burning Emissions Pa... (by )
  • Mineral Dust Effects on Clouds and Rainf... (by )
  • A Chemical Probe Technique for the Deter... (by )
Scroll Left
Scroll Right

 



Copyright © World Library Foundation. All rights reserved. eBooks from World eBook Library are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.