Stratospheric heating by potential geoengineering aerosols
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To link to this article DOI: 10.1029/2011GL049761
A fixed dynamical heating model is used to investigate the pattern of zonal-mean stratospheric temperature change resulting from geoengineering with aerosols composed of sulfate, titania, limestone and soot. Aerosol always heats the tropical lower stratosphere, but at the poles the response can be either heating, cooling, or neutral. The sign of the change in stratospheric Pole-Equator temperature difference depends on aerosol type, size and season. This has implications for modelling geoengineering impacts and the response of the stratospheric circulation.