The map below shows the GISS February, 2011 extrapolation projected on to a sphere. The extrapolation patterns are bizarre, with negative anomalies abutting +5 anomalies. Their map represents impossible physical conditions.
Most of their Arctic data is fabricated, because they don’t actually have any coverage in most of the Arctic – as seen below in their 25o km map. Grey areas represent no data.
Original projections are shown below.