Fig. S6. Maps of partial variance explained by the
SAMΣ and lagged- Niño3.4Σterms . R2 are shown for the combination of the
SAMΣ and Niño3.4Σ terms (top row) and
each independently (middle and lower rows). Partial variances explained
are often smaller for the gridded dataset than for entire basins or AIS,
WAIS, APIS, or EAIS due to averaging of time series noise and often
stronger signal over larger areas, although cancelling of signal does
also occur at the ice sheet scale.