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Plate 6. August (a) mean (Cntle, contours) and anomalous (Sum95e-Cntle, shaded) vertically integrated diabatic heating
rate. The path of the transect is shown by a thick black line in Plate 6a. (b) Transect through the Arctic into the North Pa-
cific showing total diabatic heating rate anomalies. The units are W m -2 in Plate 6a for both shaded and contoured fields.
CI is 0.1 K d -1 in Plate 6b. The total diabatic heating rate is the sum of convective adjustment, solar heating, longwave
heating, vertical diffusion, and horizontal diffusion.
Plate 7. LBM results in August for Sum95e. Geopotential height GCM response to reduced sea ice at (a) 500 hPa and (b)
950 hPa. Individual LBm response to (c and d) transient eddy vorticity, (e and f) transient eddy heat fluxes, and (g and h)
diabatic heating. CI is 5 m where red (blue) signifies positive (negative) height anomalies. The LBm response has been
multiplied by 2.5 to match the magnitude of the GCM response.
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