Table 2 Sensitivity experiments using NW-150Tg over select regions in CESM-WACCM4. Date of initial perturbation is 15 May for all tests.

From: Nuclear Niño response observed in simulations of nuclear war scenarios

Name

Region

Mechanism Isolated

EXP-MC

Maritime Continent:95°E–140°E, 15°S–15°N

Suppressed convection from surface cooling of the Maritime Continent and zonal equatorial Pacific zonal temperature gradient.

EXP-TA

Tropical Africa: 15°E–50°W, 10°S–30°N

Eastward propagating Kelvin wave produced by reduced African convective activity.

EXP-NH

Northern Hemisphere: North of 10°N

Equatorward shift of the ITCZ and weakening of North Pacific subtropical high pressure.

  1. Date of initial perturbation is 15 May for all tests.