Thanks for the images. It better not be an analog, however, since geoengineers never proposed tropospheric aerosol injections and would not want to mess up aviation.
Last week Alan Robock reported only 3-4 kt (0.003-0.004 Mt) of SO2 from the Eyjafjallajökull volcanic eruption in Iceland as compared to 5 Mt from Katmai in 1912 and 20 Mt from Pinatubo. Furthermore, it only went into the troposphere, with a lifetime of a week or so. So he expects "absolutely no climatic effect based on emissions so far." In other words, a much larger injection for a period of years (essentially a geoengineering implementation scenario) would be needed to detect a climate response. On 4/19/10 3:58 PM, "Ning Zeng" <[email protected]> wrote: > All: Below is a link to a series of MODIS images of the Iceland > volcanic eruption beginning in March. Depending on how it goes, it > could be a natural analog to targeted Arctic geoengineering. -Ning > Zeng > > http://earthobservatory.nasa.gov/NaturalHazards/event.php?id=43253 -- You received this message because you are subscribed to the Google Groups "geoengineering" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/geoengineering?hl=en.
