Figure 16: Average root-mean-square errors versus rawinsondes over the CONUS from the control Eta-22 (solid black) and the parallel Eta-22 with the new land-surface physics (dashed red) 12,36,60-h forecasts from 12Z 2 February 2001 - 12Z 28 February 2001. Top left = vector wind error (m/s); top right = temperature error (deg C); bottom left = realtive humidity (%); bottom right = height (m)