BER 16 Feb 83 MEMORANDUM FOR GC DDST( TT) ISCM (Mr. Niles) IN TURH SUBJECT: 1. Operation Redwing Final Draft while it's clear that our astute and diligent investigator could at best infer certain information from the predicted patterns in the history, it is by no means clear to me that mere than fission yields could be roughly estimated. The argument that one could then obtain total yields from the predicted cloud heights is true only if one iterated on the calculations with some insight, in may opinion, because predicted cloud heights are nov given in the draft. I believe, but have not verified, that ground burst assumptions were made to complete the calculations in all cases. However, if one did rot already know the assumed parameters of the event (yield, HOB, fission yield) I believe calculations would not yield meaningful results. Therefore, I believe we could hope to reclain DoE's decision on predicted patterns. If you agree, I recommend we pursue this course of action. 2. The question of whether we (DoD) should attempt to convince Do£ to declassify Pacific Test yields is not one which I believe we can profitably address. I see no hope of a successful conclusion to such a course of action, were successful. and also see no profit for us if it DAVID L. AUTON, PhD Chief, BEHR 90009489 Ww