bluewave Posted April 15, 2014 Share Posted April 15, 2014 ...... Link to comment Share on other sites More sharing options...
A-L-E-K Posted April 15, 2014 Share Posted April 15, 2014 thanks for the link Link to comment Share on other sites More sharing options...
WXheights Posted April 25, 2014 Share Posted April 25, 2014 http://cliserv.jql.usu.edu/paper/CA_drought_final.pdf Abstract The 2013-14 California drought was accompanied by an anomalous high-amplitude ridge system. The anomalous ridge was investigated using reanalysis data and the Community Earth System Model (CESM). It was found that the ridge emerged from continual sources of Rossby wave energy in the western North Pacific starting in late summer, and subsequently intensified into winter. The ridge generated a surge of wave energy downwind and deepened further the trough over the northeast U.S., forming a dipole. The dipole and associated circulation pattern is not linked directly with either ENSO or Pacific Decadal Oscillation; instead it is correlated with a type of ENSO precursor. The connection between the dipole and ENSO precursor has become stronger since the 1970s, and this is attributed to increased GHG loading as simulated by the CESM. Therefore, there is a traceable anthropogenic warming footprint in the enormous intensity of the anomalous ridge during winter 2013-14, the associated drought and its intensity. And ... this exactly links Alaskan displacement of cold air outbreaks and recent cold anomaly across notably eastern N. AM talked about in another thread. Awesome - thought based much off SST GOA linked. Link to comment Share on other sites More sharing options...
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