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. 2015 Mar 30;112(15):4570–4575. doi: 10.1073/pnas.1422296112

Fig. 2.

Fig. 2.

Spatial pattern. (AC) Regression of anomalous September SIC on 0.65 million km2, 0.58 million km2, and 0.32 million km2 reduction of September Arctic SIE induced by anomalous HTATL (2-y lead) (A), HTPAC (2-y lead) (B), and AD (1-y lead) (C), respectively (Eq. 2). (D) Regression of anomalous April−July (AMJJ) SLP/ice motion on AD (1-y lead) as in C. (E) Regression of anomalous September SIC on 1 million km2 reconstructed inverted September Arctic SIE anomaly (Eq. 2). (F) Regression of observed anomalous September SIC on 1 million km2 inverted observed September Arctic SIE anomaly (1979−2013). Note that AE are LF regressions from CM2.1 and F is unfiltered regression from observation. Thick black lines denote climatological September ice edges. The white lines in AC and E are due to the polar projection of SIC simulated on tripolar grids in CM2.1.