An interesting discussion, no doubt - but please can all posters start new threads for new topics.
Thanks A On Jul 18, 2013 4:05 PM, "Nathan Currier" <[email protected]> wrote: > Hi, Ken - > > I'm curious if there's been much modeling, consideration or observation of > the following: plenty is known about the radiative effects of the sulfur > itself, > but in recent years, Solomon's research on the possibly much larger impact > of stratospheric water vapor on global climate than previously realized > (http://www.noaanews.noaa.gov/stories2010/20100128_watervapor.html) > makes me wonder, could analogous extended indirect effects that Shindell > found for methane oxidation in the troposphere take place in the > stratosphere? > Since methane hydroxylation is slowed there via competition for hydroxyl > in the reactions turning SO2 to sulfates, and since methane oxidation > is a primary cause of stratospheric water vapor, and since CH4 lifetime > increase is indistinguishable from increase in abundance, could having > a sudden infusion of sulfur then play out more slowly with radiative > effects after the cooling period is gone via increased water vapor and > hence warming? > > Cheers, > > Nathan > > > > http://www.noaanews.noaa.gov/stories2010/20100128_watervapor.html > > http://www.realclimate.org/index.php/archives/2010/01/the-wisdom-of-solomon/ > > On Wednesday, July 17, 2013 4:20:24 PM UTC-4, Ken Caldeira wrote: >> >> With respect to learning more about potential consequences of solar >> geoengineering, what kinds of observing systems do we need in place to >> take maximal advantage of the next big volcano? >> >> What would we want to have in space (and why)? >> >> What would we want to have in airplanes (and why)? >> >> What would we want on the ground (and why)? >> >> How would these assets be utilized when there is no big volcano? >> >> Are there any high-quality reports or studies that address this issue? >> >> - >> >> >> -- >> _______________ >> Ken Caldeira >> >> Carnegie Institution for Science >> Dept of Global Ecology >> 260 Panama Street, Stanford, CA 94305 USA >> +1 650 704 7212 kcal...@**carnegiescience.edu >> http://dge.stanford.edu/labs/**caldeiralab<http://dge.stanford.edu/labs/caldeiralab> >> @kencaldeira >> >> *Caldeira Lab is hiring postdoctoral researchers.* >> *http://dge.stanford.edu/labs/caldeiralab/Caldeira_employment.html* >> >> Assistant: Sharyn Nantuna, snan...@**carnegiescience.edu >> >> >> >> -- > 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 http://groups.google.com/group/geoengineering. > For more options, visit https://groups.google.com/groups/opt_out. > > > -- 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 http://groups.google.com/group/geoengineering. For more options, visit https://groups.google.com/groups/opt_out.
