Physics
Scientific paper
May 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002georl..29j.117s&link_type=abstract
Geophysical Research Letters, Volume 29, Issue 10, pp. 117-1, CiteID 1479, DOI 10.1029/2001GL014521
Physics
11
Atmospheric Composition And Structure: Evolution Of The Atmosphere, Atmospheric Composition And Structure: Troposphere-Composition And Chemistry, Global Change: Atmosphere (0315, 0325)
Scientific paper
Global measurements show that the mixing ratio of tropospheric methane (CH4) increased by 1.1% (19.5 +/- 1.7 ppbv) over the five-year period 1996-2000, with striking fluctuations in its annual growth rate. Whereas the global CH4 growth rate reached 15.9 +/- 0.7 ppbv yr-1 in 1998, the growth rate was -2.1 +/- 0.8 ppbv yr-1 in 2000. This is the first time in our 23-year global monitoring program that we have measured a negative annual CH4 growth rate. The CH4 growth rate fluctuates in an unpredictable fashion, and we reemphasize that global CH4 concentrations cannot be extrapolated into the future based on past trends. As a result, we suggest that the slowing of the CH4 growth rate during much of the 1980s and 1990s cannot be used to imply that CH4 will no longer be of concern in greenhouse gas studies during this century.
Blake Donald R.
Chen Tai-Yih
Rowland Sherwood F.
Simpson Isobel J.
No associations
LandOfFree
Implications of the recent fluctuations in the growth rate of tropospheric methane does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Implications of the recent fluctuations in the growth rate of tropospheric methane, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Implications of the recent fluctuations in the growth rate of tropospheric methane will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1517745