Publications

2023, Chang, K.L., O.R. Cooper, G. Rodriguez, L.T. Iraci, E.L. Yates, M.S. Johnson, A. Gaudel, D.A. Jaffe, N. Bernays, H. Clark, P. Effertz, T. Leblanc, I. Petropavlovskikh, B. Sauvage, D.W. Tarasick , Diverging ozone trends above western North America: boundary layer decreases vs. free tropospheric increases, Journal of Geophysical Research: Atmospheres, 128, e2022JD038090, https://doi.org/10.1029/2022JD038090
Tags: Dobson, Lidar, Ozone, Sonde, Trends

2022, Hannigan, J.W., I. Ortega, S. B. Shams, T. Blumenstock, J. E. Campbell, S. Conway, V. Flood, O. García, D. Griffith, M. Grutter, F. Hase, P. Jeseck, N. Jones, E. Mahieu, M. Makarova, M. De Mazière, I. Morino, I. Murata, T. Nagahama, H. Nakijima, J. Notholt, M. Palm, A. Poberovskii, M. Rettinger, J. Robinson, A. N. Röhling, M. Schneider, C. Servais, D. Smale, W. Stremme, K. Strong, R. Sussmann, Y. Té, C. Vigouroux, and T. Wizenberg, Global Atmospheric OCS Trend Analysis from 22 NDACC Stations, Journal of Geophysical Research: Atmospheres, 127(4), https://doi.org/10.1029/2021JD035764
Tags: FTIR, OCS, Trends

2020, Strahan, S.E., Smale, D., Douglass, A. R., Blumenstock, T., Hannigan, J. W., Hase, F., Jones, N., Mahieu, E., Notholt, J., Oman, L. D., Ortega, I., Palm, M., Prignon, M., Robinson, J., Schneider, M., Sussmann, R., Velazco, V., Observed Hemispheric Asymmetry in Stratospheric Transport Trends from 1994 to 2018, Geophysical Research Letters, 47, e2020GL088567, https://doi.org/10.1029/2020GL088567
Tags: FTIR, Model, Trends

2019, Lutsch, E., K. Strong, D.B.A. Jones, I. Ortega, J.W. Hannigan, E. Dammers, M.W. Shephard, E. Morris, K. Murphy, M.J. Evans, M. Parrington, S. Whitburn, M. Van Damme, L. Clarisse, P.-F. Coheur, C. Clerbaux, B. Croft, R.V. Martin, J.R. Pierce, and J.A. Fisher, Unprecedented ammonia concentrations detected in the high Arctic from the 2017 Canadian wildfires, Journal of Geophysical Research: Atmospheres, 124, 8178–8202, https://doi.org/10.1029/2019JD030419
Tags: FTIR, NH3

2019, Lieschke, K.J., J. A. Fisher, C. Paton-Walsh, N. B. Jones, J. W. Greenslade, S. Burden, and D. W. T. Griffith, Decreasing Trend in Formaldehyde Detected From 20-Year Record at Wollongong, Southeast Australia, Geophysical Research Letters, 46(14), 8464-8473, https://doi.org/10.1029/2019gl083757
Tags: CH2O, FTIR, Trends

2018, Monks, S.A., Wilson, C., Emmons, L. K., Hannigan, J. W., Helmig, D., Blake, N. J., and Blake, D. R., Using an inverse model to reconcile differences in simulated and observed global ethane concentrations and trends between 2008 and 2014, Journal of Geophysical Research: Atmospheres, 123(19):11,262–11,282
Tags: C2H6, FTIR, Trends

2018, Philipona, R., Mears, C., Fujiwara, M., Jeannet, P., Thorne, P., Bodeker, G., Haimberger, L., Hervo, M., Popp, C., Romanens, G., Steinbrecht, W., Stübi, R., and Van Malderen, R., Radiosondes show that after decades of cooling, the lower stratosphere is now warming, Journal of Geophysical Research: Atmospheres, 123, 12,509–12,522, https://doi.org/10.1029/2018JD028901
Tags: Sonde, Temperature, Trends

2016, Lutsch, E., E. Dammers, S. Conway, and K. Strong, Long-range Transport of NH3, CO, HCN and C2H6 from the 2014 Canadian Wildfires, Geophysical Research Letters, 43, 8286–8297, https://doi.org/10.1002/2016GL070114
Tags: C2H6, CO, FTIR, HCN, NH3

2008, Hendrick, F., P.V. Johnston, K. Kreher, C. Hermans, M. De Mazière, and M. Van Roozendael, One decade trend analysis of stratospheric BrO over Harestua (60°N) and Lauder (44°S) reveals a decline, Geophysical Research Letters, 35, L14801, https://doi.org/10.1029/2008GL034154
Tags: BrO, Trends, UVVis

2007, Kivi, R., Kyrö, E., Turunen, T., Harris, N. R. P., von der Gathen, P., Rex, M., Anderson, S. B., Wohltmann, I., Ozonesonde observations in the Arctic during 1989-2003: ozone variability and trends in lower stratosphere and free troposphere, Journal of Geophysical Research: Atmospheres, 112, D08306, https://doi.org/10.1029/2006JD007271
Tags: Ozone, Sonde, Trends