University of Wollongong Research Online Faculty of Science, Medicine and Health - Papers Faculty of Science, Medicine and Health 2017 The ecer nt increase of atmospheric methane from 10 years of ground-based NDACC FTIR observations since 2005 Whitney Bader University of Liege, University of Toronto Benoit Bovy University of Liege Stephanie Conway University of Toronto Kimberly Strong University of Toronto,
[email protected] D Smale National Institute of Water and Atmospheric Research, New Zealand See next page for additional authors Publication Details Bader, W., Bovy, B., Conway, S., Strong, K., Smale, D., Turner, A. J., Blumenstock, T., Boone, C., Coen, M., Coulon, A., Griffith,. D W. T., Jones, N., Paton-Walsh, C. et al (2017). The er cent increase of atmospheric methane from 10 years of ground-based NDACC FTIR observations since 2005. Atmospheric Chemistry and Physics, 17 (3), 2255-2277. Research Online is the open access institutional repository for the University of Wollongong. For further information contact the UOW Library:
[email protected] The ecer nt increase of atmospheric methane from 10 years of ground- based NDACC FTIR observations since 2005 Abstract Changes of atmospheric methane total columns (CH4) since 2005 have been evaluated using Fourier transform infrared (FTIR) solar observations carried out at 10 ground-based sites, affiliated to the Network for Detection of Atmospheric Composition Change (NDACC). From this, we find na increase of atmospheric methane total columns of 0.31 ± 0.03 % year-1 (2σ level of uncertainty) for the 2005-2014 period. Comparisons with in situ methane measurements at both local and global scales show good agreement.