ah. wey 187 This work on Wigwam wae specifi-e cally correlated with ocesnographio measure=- ments, the oceanographic methods to get those and to find what it is and this was a relatively small pattern. And so, by the aerial means we could plot out isodoses end determine the location of the snmples, the sampling lo= cations and then the ships could go exactly there because the ships move so slow in 12 or 13 miles the pattern could move out under neath before they can ‘get that down to where 4t is. The next slide goes into a little more in the heert of this as far as what we do with thia, We take the dose rate in the alreraft; we have a fector of tude and can turn us into that. alti- On the Redwing program we are going to study this factor about altitude again; we will take gamma spectro in curves at various altitudes by using a helicopter to attempt to determino why the altitude factor remains so constant over our field of measurement. It should vary with time; £¢ should vary with distance; it should vary with a lot of things, and yet we still come out with

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