Recent Trends in Arctic Sea Ice and the Evolving Role of Atmospheric Circulation Forcing, 1979–2007 - Arctic Sea Ice Decline: Observations, Projections, Mechanisms, and Implications - page 17

Plate 5. Sea ice concentration (color shading, percent per decade) and sea level pressure (contours, hPa per decade) trends
during (left) 199-1993, (middle) 1993-200, and (right) 199-200 for each season as indicated. The contour interval
for sea level pressure is 1 hPa per decade; negative values are dashed, and the zero and positive values are solid. Note
that data after April 200 are excluded.