In contrast,successively younger and lower lake levels are recorded around the
southernmost internally draining playa lakes Frome and Callabonna during the same time (Cohen et al., 2012, 2011), raising the question if this divergence could result from regionally differing responses to lake-specific hydrologic boundary conditions and
thresholds (Benson and Paillet, 1989; Cohen et al., 2012), or may in fact reflect significant changes in runoff and/or precipitation sources related to large-scale shifts in atmospheric circulation pattern(Cohen et al., 2012).