Hello all but the eruptions really cool? Read the papers
Wunderlich, F., & Mitchell, D. M. (2017). Revisiting the observed surface climate response to large volcanic eruptions. Atmospheric Chemistry and Physics, 17(1), 485-499. DOI: 10.5194/acp-17-485-2017ù Fujiwara, M., Hibino, T., Mehta, S. K., Gray, L., Mitchell, D., & Anstey, J. (2015) Global temperature response to the major volcanic eruptions in multiple reanalysis data sets. Atmospheric Chemistry and Physics, 15, 13507–13518. Canty, T., Mascioli, N. R., Smarte, M. D., & Salawitch, R. J. (2013) An empirical model of global climate-Part 1: A critical evaluation of volcanic cooling. Atmospheric Chemistry and Physics,13, 3997. Driscoll, S., Bozzo, A., Gray, L.J., Robock, A. and G. Stenchikov (2012) Coupled Model Intercomparison Project 5 (CMIP5) simulations, of climate following volcanic eruptions, J. Geophys. Res., 117, D17105, doi:10.1029/2012JD01760 In view of these the paper by Jin Hansen et al. (Hansen, J. E.,Wang,W. C., and A.A. Lacis, (1978) Mount Agung eruption provides test of a global climatic perturbation. Science, 199, 1065-1068, DOI 10.1126/science.199.4333. 1065) should be at least withdrawn Guido Visconti > Il giorno 01 dic 2017, alle ore 06:41, Paul Beckwith <[email protected]> > ha scritto: > > Hello Alan, > > For Mount St. Helens in 1980, wasn’t the main reason for the lack of climate > impact the fact that the explosive energy was mostly directed horizontally as > opposed to upwards, so that minimal sulfur amounts reached the stratosphere. > I thought that there was significant sulfur released from the eruption, but > that it mostly stayed in the troposphere. > > Sincerely, > Paul > > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of Alan Robock > Sent: Thursday, November 30, 2017 11:27 PM > To: [email protected]; geoengineering > Subject: Re: [geo] VEI vs cooling > > There is a positive correlation, but VEI is not a good index. It is an > estimate of the explosive energy, not the amount of sulfur injected into the > stratosphere, which is what determines the climate impact. Mount St. Helens > in 1980 was VEI 5, very explosive, but had little SO2 and no climate impact. > See the discussion on pp. 11551-11553 of my paper, > http://climate.envsci.rutgers.edu/pdf/RobockFree95JD00825.pdf > > Alan > > Alan Robock, Distinguished Professor > Editor, Reviews of Geophysics > Department of Environmental Sciences Phone: +1-848-932-5751 > Rutgers University Fax: +1-732-932-8644 > 14 College Farm Road E-mail: [email protected] > New Brunswick, NJ 08901-8551 USA http://envsci.rutgers.edu/~robock > ☮ http://twitter.com/AlanRobock 2017 Nobel Peace Prize to ICAN! > Watch my 18 min TEDx talk at http://www.youtube.com/watch?v=qsrEk1oZ-54 > > On 11/30/2017 10:21 PM, David Appell wrote: >> SRM people: >> >> Does a volcanic eruption's VEI correlate to the amount of cooling it >> will/can cause? >> >> David >> > > -- > 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 post to this group, send email to [email protected]. > Visit this group at https://groups.google.com/group/geoengineering. > For more options, visit https://groups.google.com/d/optout. > > -- > 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 post to this group, send email to [email protected]. > Visit this group at https://groups.google.com/group/geoengineering. > For more options, visit https://groups.google.com/d/optout. -- 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 post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/geoengineering. For more options, visit https://groups.google.com/d/optout.
