Figure 3: Trends (color fill; units: 10 −2 mms −1 decade −1 ) and climatologies (contours; units: 10 −3 mms −1 ) in the 𝑤 ∗ derived from the CCMs’ ensemble mean averaged over (a) March-April-May (MAM), (b) June-July-August (JJA), (c) September-October-November (SON), and (d) December-January-February (DJF), over the period 1960–2000. The contour interval for the climatological 𝑤 ∗ is 0.2 × 10 −3 mm s −1 . Solid and dashed lines represent positive and negative contours, respectively. Stippled regions show the trends significant at the 90%