Back to Search
Start Over
Solar irradiance reduction via climate engineering: Impact of different techniques on the energy balance and the hydrological cycle
- Source :
- Journal of Geophysical Research: Atmospheres. 118:11-11,917
- Publication Year :
- 2013
- Publisher :
- American Geophysical Union (AGU), 2013.
-
Abstract
- [1] Different techniques of solar radiation management (SRM) have been suggested to counteract global warming, among them the injection of sulfur into the stratosphere, mirrors in space, and marine cloud brightening through artificial emissions of sea salt. This study focuses on to what extent climate impacts of these three methods would be different. We present results from simulations with an Earth system model where the forcing from the increase of greenhouse gases in a transient scenario (RCP4.5) was balanced over 50 years by SRM. While global mean temperature increases slightly due to the inertia of the climate system and evolves similar with time for the different SRM methods, responses of global mean precipitation differ considerably among the methods. The hydrological sensitivity is decreased by SRM, most prominently for aerosol-based techniques, sea salt emissions, and injection of sulfate into the stratosphere. Reasons for these differences are discussed through an analysis of the surface energy budget. Furthermore, effects on large-scale tropical dynamics and on regional climate are discussed.
- Subjects :
- Atmospheric Science
food.ingredient
business.industry
Sea salt
Global warming
Solar irradiance
Atmospheric sciences
Geophysics
food
Space and Planetary Science
Solar radiation management
Greenhouse gas
Climatology
Earth and Planetary Sciences (miscellaneous)
Environmental science
Water cycle
Climate engineering
business
Stratosphere
Subjects
Details
- ISSN :
- 2169897X
- Volume :
- 118
- Database :
- OpenAIRE
- Journal :
- Journal of Geophysical Research: Atmospheres
- Accession number :
- edsair.doi...........d5653eaaff55edb79fcf49cbe15325bb