Hi This paper is well worth reading
Heckendorn, P.; Weisenstein, D.; Fueglistaler, S.; Luo, B. P.; Rozanov, E.; Schraner, M.; Thomason, L. W.; Peter, T. (2009). "The impact of geoengineering aerosols on stratospheric temperature and ozone". Environmental Research Letters 4: 045108. Bibcode2009ERL.....4d5108H. doi:10.1088/1748-9326/4/4/045108 The authors consider the temporal and spatial injection regime best suited to attaining well-mixed sulphur particles of the correct size distribution for geoengineering use. They conclude that spatial distribution is helpful, but temporal distribution is unhelpful. I personally would welcome list discussion on whether this conclusion is seen as reliable, and additionally clarification of the processes involved. One thing which I personally am currently unclear on is the optimal microscale mixing ratios required. Has anyone considered the effect of a dense injection regime, e.g. a balloon or slurry pipe, versus a distributed regime, e.g. an aircraft fleet? Heckendorn do not seem to have addressed this issue at all in their paper. It's unclear to me whether the injection density on a scale of 10E1-10E4m would be significant in the formation of aerosols. I'm not aware of any paper which considers this microscale mixing. Any links & comments are appreciated. A -- 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.
