Isla Simpson


I have moved, please see my new website here....
http://www.cgd.ucar.edu/staff/islas/

Publications

Submitted

Simpson, I. R., Seager, R., Ting, M. and Shaw, T. A. Causes of change in Northern Hemisphere winter meridional wind and regional hydroclimate.

Published/In Press

Simpson, I. R., Seager, R., Shaw, T. A. and Ting, M. (2015) Mediterranean summer climate and the importance of the Middle East Topography. J. Clim., 28 1977--1996

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Seager, R., Neelin, D., Simpson, I. R., Liu, H., Henderson, N., Shaw, T. A., Kushnir, Y., Ting, M. and Cook, B. (2014) Dynamical and thermodynamical causes of large-scale changes in the hydrological cycle of North America in response to global warming., J. Clim., 27, 7921--7948

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Hitchcock, P. and Simpson, I. R. (2014) The Downward Influence of Stratospheric Sudden Warmings (2014) J. Atmos. Sci., 71, 3856--3876

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Seager, R., Liu, H., Henderson, N., Simpson, I. R., Kelley, C., Shaw, T. A., Kushner, Y. and Ting, M. (2014) Causes of increasing aridification of the Mediterranean region in response to rising greenhouse gases (2014), J. Clim., 27, 4655--4676

PDF Simpson, I. R., Shaw, T. A. and Seager, R. (2014) A diagnosis of the seasonally and longitudinally varying mid-latitude circulation response to global warming (2014) J. Atmos. Sci., 71, 2489--2515

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Simpson, I. R., Shepherd, T. G., Hitchcock, P and Scinocca, J. F. (2013) Southern Annular Mode dynamics in observations and models, part 2: eddy feedbacks. J. Clim., 26, 5220--5241 PDF

Simpson, I. R., Hitchcock, P., Shepherd, T. G. and Scinocca, J. F. (2013) Southern Annular Mode dynamics in observations and models, part 1: the influence of climatological zonal wind biases in a Comprehensive GCM. J. Clim., 26, 3953-3967 PDF

Simpson I. R., Blackburn, M. and Haigh, J. D. (2012) A mechanism for the effect of tropospheric jet structure on the annular mode-like response to stratospheric forcing. J. Atmos. Sci., 69, 2152-2170 PDF

Simpson I. R., Hitchcock, P., Shepherd, T. G. and Scinocca, J. F. (2011) Stratospheric variability and tropospheric annular mode timescales. Geophysical Research Letters, 38, L20806, doi:10.1029/2011GL049304 PDF

Simpson I. R., Shepherd, T. G., Sigmond, M. (2011) Dynamics of the lower stratospheric circulation response to ENSO. Journal of the Atmospheric Sciences, 68, 2537-2556 PDF

Simpson I. R., Blackburn M., Haigh J. D. and Sparrow, S. N. (2010) The impact of the state of the troposphere on the response to stratospheric heating in a simplified GCM. Journal of Climate, 23, 6166-6185 PDF

Simpson I. R., Blackburn M. and Haigh J. D. (2009) The role of eddies in driving the tropospheric response to stratospheric heating perturbations. Journal of the Atmospheric Sciences, 66, 1347-1365 PDF

PHD thesis - Solar influence on stratosphere-troposphere dynamical coupling. PDF

Teaching

PHY2504HS: Atmospheric Dynamics