goo.gl/scholar/NCKxvJ J. G. Virgin, C. G. Fletcher
November 16, 2022 Abstract To assess impacts of solar geoengineering, the GeoMIP G1 experiment forces Earth System Models with prescribed reductions in solar radiation to balance increases in atmospheric CO2. One key source of uncertainty is the magnitude of solar constant reduction required to offset a CO2 quadrupling. Here, we decompose the G1 experiment in the Community Earth System Model with solar only and CO2 only forcing experiments to quantify single forcing rapid radiative adjustments. We find that radiative adjustments to both single forcings have a net positive effect on top of atmosphere energy balance such that they both increase the net G1 forcing. Stratospheric temperature and short-wave cloud adjustments are the main sources of positive adjustment in both Solar and CO2 scenarios. We also show that net G1 radiative adjustment cannot be represented linearly with CO2 and solar forcing adjustments, which is primarily traced to further reductions in boundary layer clouds. Source: Geophysical research letters -- You received this message because you are subscribed to the Google Groups "geoengineering" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/geoengineering/CAOyeF5viKqbr292OGyCTpTtcWBS3zaeB6O_S38xfcVuLnubUQg%40mail.gmail.com.
