Consistent observational records of the atmosphere and oceans are now long enough to be useful in understand large-scale variability on interannual to decadal time scales. My work focuses on using these data alone, or in conjunction with models, to understand large scale processes and extreme events. Some of my current work includes forcing an ocean general circulation model with observation-based surface radiative fluxes in order to understand the role volcanic aerosols and dust storms play in modulating surface and subsurface ocean temperatures anomalies. Another area of research in investigating the ways in which climate variability alters tropical cyclone activity from one year to another, and how these storms can in turn impact the coupled ocean-atmosphere system.

Selected Pubs:

Evan, A. T., D. J. Vimont, R. Bennartz, J. P. Kossin & A. K. Heidinger (2009) The role of aerosols in the evolution of tropical Atlantic Ocean temperature anomalies, Science, doi:10.1126/science.1167404.

Evan, A. T., R. Bennartz, V. Bennington, H. Corrada-Bravo, A. K. Heidinger, N. M. Mahowald, C. S. Velden, G. Myhre & J. P. Kossin (2008) Ocean temperature forcing by aerosols across the Atlantic tropical cyclone development region. Geochem. Geophys. Geosyst., 9, Q05V04, doi:10.1029/2007GC001790.

Ramankutty, N., A. T. Evan, C. Monfreda, and J. A. Foley (2008), Farming the planet: 1. Geographic distribution of global agricultural lands in the year 2000, Global Biogeochem. Cycles, 22, GB1003, doi:10.1029/2007GB002952.

Evan, A. T. (2007) Comment on “How Nature Foiled the 2006 Hurricane Forecasts.” EOS Trans., 88 (26), pp. 271.

Evan, A. T., A. K. Heidinger & D. J. Vimont (2007) Arguments against a physical long-term trend in global ISCCP cloud amounts. Geophys. Res. Lett., 34, L04701, doi:10.1029/2006GL028083.

Evan, A., J. Dunion, J. Foley, A. Heidinger & C. Velden (2006) New evidence for a relationship between North Atlantic tropical cyclone activity and African dust outbreaks. Geophys. Res, Lett., 33, L19813, doi:10.1029/2006GL026408.

Evan, A., A. Heidinger & M. Pavolonis (2006) Development of a new over-water Advanced Very High Resolution Radiometer dust detection algorithm. Int. J. Remote Sens., 27(18), 3903-3924.

Evan, A. T., A. K. Heidinger & P. Knippertz (2006), Analysis of winter dust activity off the coast of West Africa using a new 24-year over-water advanced very high resolution radiometer satellite dust climatology, J. Geophys. Res., 111, D12210, doi:10.1029/2005JD006336.