sOLZMAN s I think that first problem can be handled witheut balloons. I don't see why you can't do Lt the way we have done it in the past-——-by metecrolegical winds. The latter probles-—-that is to find out how much is really up there after 6 long period of time and the rato at which 4t is being scavenged-~it evens to mo is the real problen. KELLOGG: Of course yeur wind analysis doesn't tell you anything shout the density; it merely says that a part of the cloud is started here, if it was all there would now be bere, and what didn't fall out or diffuse would all be over bere. trajectory analysis to denonstrate that. Wobedy objects to hat we don't know ia how it moves in the vertical when it la fellewing tue trajectory, and it was suggested that we de have a very complste eut of the surface new, to show the density in a long twodizensions at the surface. We really don't know what path is followed by the debris in getting to the surface. We can only work backwards, using a columnation of trajectories and guessing about diffusion. It's generally a rather poorly controlled experinent; we can only use our winds plus an observation of ene plane, in this case the surfaces. I would like to see observations in 3-dinensions,. COONS s This observation in another layer ef the atmesphere seezs indeed a difficult one when you consider you are using balloons and having the difficulty of having them where we vant then. OE ARCHIVES