224
X. Zhang et al.
using MSA. If we do not assume significant trend of tropospheric OH since 2000,
then our assimilated OH looks more realistic than the CTRL run.
Acknowledgements This work was supported by funding from Environment and Climate Change
Canada and the Natural Sciences and Engineering Research Council (NSERC).
References
1. D.K. Henze, A. Hakami, J.H. Seinfeld, Development of the adjoint of GEOS-Chem. Atmos.
Chem. Phys. 7, 2413–2433 (2007)
2. K. Miyazaki, H.J. Eskes, K. Sudo, M. Takigawa, M. van Weele, K.F. Boersma, Simultaneous
assimilation of satellite NO 2 , O 3 , CO, and HNO 3 data for the analysis of tropospheric chemical
composition and emissions. Atmos. Chem. Phys. 12, 9545–9579 (2012)
3. C.M. Spivakovsky, J.A. Logan, S.A. Montzka, Y.J. Balkanski, M. Foreman-Fowler, D.B.A.
Jones, L.W. Horowitz, A.C. Fusco, C.A.M. Brenninkmeijer, M.J. Prather, S.C. Wofsy, M.B.
McElroy, Three-dimensional climatological distribution of tropospheric OH: update and evaluation. J. Geophys. Res. Atmos. 105(D7), 8931–8980 (2000)
X. Zhang et al.
using MSA. If we do not assume significant trend of tropospheric OH since 2000,
then our assimilated OH looks more realistic than the CTRL run.
Acknowledgements This work was supported by funding from Environment and Climate Change
Canada and the Natural Sciences and Engineering Research Council (NSERC).
References
1. D.K. Henze, A. Hakami, J.H. Seinfeld, Development of the adjoint of GEOS-Chem. Atmos.
Chem. Phys. 7, 2413–2433 (2007)
2. K. Miyazaki, H.J. Eskes, K. Sudo, M. Takigawa, M. van Weele, K.F. Boersma, Simultaneous
assimilation of satellite NO 2 , O 3 , CO, and HNO 3 data for the analysis of tropospheric chemical
composition and emissions. Atmos. Chem. Phys. 12, 9545–9579 (2012)
3. C.M. Spivakovsky, J.A. Logan, S.A. Montzka, Y.J. Balkanski, M. Foreman-Fowler, D.B.A.
Jones, L.W. Horowitz, A.C. Fusco, C.A.M. Brenninkmeijer, M.J. Prather, S.C. Wofsy, M.B.
McElroy, Three-dimensional climatological distribution of tropospheric OH: update and evaluation. J. Geophys. Res. Atmos. 105(D7), 8931–8980 (2000)