Hi Mark, Dispersion is not an explicit part of SPICE, but we do approach the problem during the lab measurements (where dispersal is key to good optical measurements).
There are studies out there that suggest particles would have issues with coalescence (particularly Heckendorn). We are also looking at a precursor gas, although this would obviously give you (potentially) much less control over particle size. The general consensus I think is that aircraft have a better chance of overcoming the problem. Matt On Oct 3, 2:21 pm, Mark Massmann <[email protected]> wrote: > Does the SPICE testing include some kind of measurement for how well > particles will disperse? > > It seems that an aerosol approach which discharges from a stationary > nozzle, as would be the case with a tethered balloon, would cause > unwanted coalescing of smaller particles onto larger particles, > limiting albedo benefit and lifetime before fallout. > > Unless I'm mistaken, my understanding was that even if an aerosol was > spread using high altitude aircraft, re-seeding over the same region > could cause this same problem to occur. If that is the case, can > someone explain how this wouldn't be a problem for a stationary > approach? > > Thanks- > Mark -- 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.
