Re: [geo] (must read) Upper tropospheric ice sensitivity to sulfate geoengineering

2018-02-13 Thread Andrew Lockley
Hasn't observational data from Pinatubo constrained this variable reasonably well? It would be surprising if there was "hidden" cooling of such magnitude. This would also presumably apply to Tambora, etc. which have left temperature (measured and proxy) and ash records. A On 5 Feb 2018 18:28, "Da

Re: [geo] (must read) Upper tropospheric ice sensitivity to sulfate geoengineering

2018-02-13 Thread dvisioni
After a volcanic eruption, together with SO2, there’s also a large amount of ash injected in the upper troposphere that might favor heterogeneous nucleation against homogeneous. This is mostly the reason why after volcanic eruption a slight increase in citrus coverage is found. On the other hand