Table 3 JJA average and DJF average ensemble mean changes in winter Hadley cell intensity (%) and ITCZ shift (latitude degree) under RCP8.5, GLENS, GEQ, Solar3x3, Solar1x1 ensemble mean (2075–2095) and GEOHEATS ensemble means relative to the baseline ensemble mean (RCP8.5 runs during 2010–2030), respectively.

From: Changes in Hadley circulation and intertropical convergence zone under strategic stratospheric aerosol geoengineering

Simulations

RCP8.5

GLENS

GEQ

Solar3x3

Solar1x1

GEOHEATS

∆ HC intensity (%)

JJA

3.6 ± 0.7

−3.5 ± 0.4

−2.9 ± 0.7

−2.2 ± 0.8

4.1 ± 0.7

−1.0 ± 0.7

DJF

−7.2 ± 0.8

0.6 ± 0.4

−5.0 ± 0.8

1.8 ± 0.8

−3.4 ± 0.9

−3.6 ± 0.7

∆ ITCZ (latitude degree)

JJA

2.65 ± 0.25

−0.72 ± 0.08

0.42 ± 0.19

−0.93 ± 0.15

0.71 ± 0.17

0.40 ± 0.14

DJF

1.06 ± 0.25

−0.16 ± 0.10

−0.83 ± 0.15

−0.04 ± 0.16

0.79 ± 0.16

−0.19 ± 0.14

  1. Percent changes represent the experiment minus the baseline divided by the baseline value. ±range that indicates the standard error in estimating the change. Positive values for ITCZ indicate a northward shift.
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