Dr Will Ball

Research Associate in Astrophysics

william.ball@ null imperial.ac.uk

Phone: +44 (0)20 759 47532
Fax: +44 (0)20 759 47772
Room 1012, Level 10
Imperial College London, Astrophysics, Blackett Laboratory, Prince Consort Road, London SW7 2AZ, UK

My main research website can be found here.


My primary research focuses on solar irradiance variability. I am also investigating the Sun's influence on the Earth's atmosphere.


You can read about the background to my solar work here and about the solar irradiance modeling method employed here.



Assessing the relationship between spectral solar irradiance and stratospheric ozone using Bayesian inferenceBall, W. T., Mortlock, D. J., Egerton J. S., Haigh, J. D., SWSC (accepted), 2014.

A new SATIRE-S spectral solar irradiance reconstruction for solar cycles 21-23 and its implications for stratospheric ozoneBall, W. T., Krivova, N. A., Unruh, Y. C., Haigh, J. D., Solanki, S. K., JAS (accepted), 2014.

The variability of Sun-like stars: reproducing observed photometric trends, Shapiro, A. I., Solanki, S. K., Krivova, N. A., Schmutz, W. K., Ball, W. T., Knaack, R., Rozanov, E. V., Unruh, Y. C., Astronomy & Astrophysics, in press, (2014).

Stratospheric O3 changes during 2001–2010: the small role of solar flux variations in a CTM, S. S. Dhomse, M. P. Chipperfield, W. Feng, W. T. Ball, Y. C. Unruh, J. D. Haigh, N. A. Krivova, S. K. Solanki, and A. K. Smith, ACPD, 13, 12263-12286 (2013)

Reconstruction of total solar irradiance 1974-2009, Ball, W. T., Unruh, Y. C., Krivova, N. A., Solanki, S., Wenzler, T., Mortlock, D. J., Jaffe, A. H., A&A, 541, A27 (2012)

Solar Irradiance Models and Measurements: A Comparison in the 220–240 nm wavelength band, Unruh Y. C., Ball, W. T., Krivova, N. A., Surv. Geophys. (2011)

Solar irradiance variability: a six-year comparison between SORCE observations and the SATIRE model, Ball, W., Unruh, Y., Krivova, N., Solanki, S., & Harder, J., A&A, 530, A71 (2011)