Furthermore, SST variability (Seager et al. 2005, 2008; Meehl and Hu 2006; McCabe et al. 2008), as well as external forcings (Dai 2011, 2013; Coats et al. 2013), may contribute to the low frequency variability and potential decadal - scale predictability of hydroclimate variability over North America. (link.springer.com)
«The fact that the drought atlases provide a nearly hemispheric view of hydroclimate variability provides an incredible amount of information that can be used to better understand what was happening in the atmosphere and ocean,» Coats said. (ldeo.columbia.edu)
«By having tree ring - based hydroclimate reconstructions for three northern hemisphere continents, we can now easily see these patterns and identify the responsible modes of variability.» (ldeo.columbia.edu)