Figure 4
From: An Atlantic-driven rapid circulation change in the North Pacific Ocean during the late 1990s
The AMO-related sea surface temperature and wind field. (a) Monthly time series of AMO index (in units of °C, thin line). The bold line shows the AMO index with 61-month running mean. The AMO positive (negative) periods are marked by the red (blue) shading. Red (blue) dashed lines indicate mean of the AMO positive (negative) periods. The AMO-related (b), sea surface Temperature (SST), (c), sea level pressure (contour), wind stress (vector), wind stress curl (WSC), and (d), 500 hPa streamlines and vertical velocities from the AGCM-SOM experiment, calculated as differences between the AMO positive and negative runs of the model. The solid/dash contours denote positive/negative anomaly. Note that in (b–d), the North Atlantic SSTs were prescribed based on the regressions onto the AMO index. The black box indicates the region of the subtropical gyre (125°E–165°W; 18–35°N).
