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700 hPa height (solid contours every 3 dam), temperature (dashed contours every 3^oC), and Laplacian of temperature advection term (B) on RHS of QG Omega equation (shaded in x10^-12 Pa m^-2 s^-1) (traditional form).
CMC GDPS analyses and forecasts on .6x.6 latitude-longitude grid are smoothed with a 9-point local smoother run 80 times.