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Large-scale atmospheric circulation controls the mass and energy balance of the Greenland ice sheet through its impact on radiative budget, runoff and accumulation. For more see: Tedesco, M. et al. 2016. Arctic cut-off high drives the poleward shift of a new Greenland melting record. Nat. Commun. 7:11723 doi: 10.1038/ncomms11723.
(a) 500 hPa geopotential height composite anomaly (m) for the month of July 2015, with respect to the 1981–2010 baseline period (using NCEP–NCARv1 reanalysis) (Tedesco et al., 2016).