Publication Type: Journal Article Year of Publication: 2008 Authors: Seager, R.;Kushnir, Y.;Ting, M.F.;Cane, M.A.;Naik, N.;Velez(Nakamura), J. Journal Title: Journal of Climate Volume: 21 Pages: 3261-3281. DOI: 10.1175/2007JCLI2134.1 URL: http://www.ldeo.columbia.edu/res/div/ocp/pub/seager/SE_drought.pdf