0.7 m (16.4%). e) US, Alaska (from tile region 06VXR with average height 9.3m). Our map yields an RMSE: 6.4 m and bias: 2.7 m (29.2%). f) US, Alaska (from tile region 06WVT with average height 6.8m). Our map yields an RMSE: 5.3 m and 