“ au ~ hk J0GG: (continuad) and the other factor is hev fast dose this thing mix? This is the ane thet we don't knew about, and it seems to me that we could use cur methods of three-dimensional plotting vhich metecrologists are accustomed to using to find out how this spreads. WREIZR: But you speak about mixing, Will. Weuld you be able to distinguish between fallout and a turbulent diffusion of gasi KELLOGG: Well, for an air burst there is virtually no fallout, as far as IT can make cut. That is, there are none = no pertiales large encagh to really sccount for any gravity fall. WEXLER: Then it would be a gaseous probler. EnwLOGG: Essentially gasecus. We have 2 micron pertiales and down — 2 microns has very smell fall velocity. You get doun te 1 afcron particle which, it has been suggested, is probably close to the peak of the meaber density curve, then we would have no fell at all, measured in a matter of days. . SOLOMON: Do you get auy radar echoes in any frequency from these elouds? KELLOGG: From the redicactive aloud? _ SOLOMON; KELLCGG: Yes. Only very initially when it's highly ionised, as far as I know they can't after it stops rising. hz roms - . DOE ARCHIVES y ine