Fig. 5: Atmospheric circulation associated with the compound events in the Northern Hemisphere hotspots.
From: Spatially compounding flood-nocturnal heat events over adjacent regions in the Northern Hemisphere
(Left two columns) Same as Fig. 2c, d, but for the detrended compound events between the flood over (a1–b1) northeastern India in South Asia (purple contour in a1 additionally shows the significant 500-hPa specific humidity anomaly aloft the terrain; units: g kg–1; intervals: 0.2 g kg–1; the Tibetan Plateau is outlined at 500 hPa and shaded with black at 850 hPa), (a2–c2) the Great Plains in the US, (a3–c3) the Central American isthmus, (a4–c4) the North African monsoon region and the adjacent nocturnal heat. The blue and red boxes denote the key regions of flood and nocturnal heat, respectively. c1, c2 Same as Fig. 2e but for the interdecadal changes in the wind fields over (c1) South Asia around the late 1970s and (c2) the US around the mid-1980s.
