SFCRET — ee a aguas small shots. Scripps will have two people in the central plot, wherever that might be, and 8 to 10 people on Enyu Island and on our ship, the HORIZON; plus some 20 crew members, on the ship who have to be accomodated but only so far as recreation and food is concerned. Project 2.6.3 = Collection and Characterization of Fallout - Terry Triffet - NRDL with Time at Operation REDWING No doubt you already noticed the fallout problem is characterized by three numbers of the program instead of two, These are indicated 2.6 projects. These run from 2.6.1 through 2.6.6. This whole program is complicated to a very great extent by the fact that our data has to be collected over between 5 and 10,000 square miles of ocean. For this reason, Dr. Isaacs has pointed out, it requires , a very closely integrated effort between all the projects. In general the projects that we will be interested in are Cherokee, Zuni and one of the barge shots. To give you an overall picture of what might be happening there at early times, Project 2.6.1 will be firing rockets through the stem and cloud. At somewhat later times, another project conducted by the AF will be conducting early cloud penetrations with aircraft. While the fallout is actually going on there will be fallout collections and gamma and beta measurements being made on the islands by the Chemical Corps and the ESL, There will be a preliminary survey first and another rapid survey a little bit later. In addition to this Scripps Institution will then conduct’a somewhat lengthier, although still a fast survey, using ocean- ographic means, of the entire ocean area, NRDL's role in this Project 2.6.3, which is my own project, is a role of providing supplementary contour data and also providing control points or check points for this entire operation to enable the whole thing to be tied together at certain points whose coordinates are, hopefully, known accurately, and points where there is careful documentation of fallout at the time, We also have the additional problem of performing our collections in such a way that we can use the data to check current model theories. As you know there are a great many of these theories. Unfortunately, no one theory can be established conclusively since the data is insufficient. We hope to provide carefully controlled data whereby this can be done. The third aspect of our program features actually collecting as much fallout both in solid and liquid phase as possible in order to perform early time and later time chemical, radio-= chemical and physical measurements, These then are our three basic objectives. I hope I have mde it clear how we hope to at least be helpful in tieing the whole project together, by the nature of these. Operationally we hope to accomplish this as follows. We will have fixed stations in the lagoon. These will essentially have total fallout collectors on them and also an instrument for measuring time of arrival. These will be rafts and barges that are provided and anchored by the Task Force. I really simplified that because on the barges we have a more elaborate array than just total collectors and time of arrival instruments, It will be the same array that is on the YAGs which I'll mention in a minute. Those are all in the lagoon. Out between zero and 30 miles, we te Cop;E, ~ 26 eee