TABLEIla.
1959 FALLOUT DATY ..ND THEIR SIGNIFIC.NCE FOR STRATOSPHERIC FALLOUT MODELS
A.
Polar Fallout Theory _/
For shots at or near the Poles, the stratospheric fallout
occurs more rapidly than for shots elsewhere, expecially the
equatorial region for which a longer residence time of perhaps
5 to 10 years is appropriate.
Take + z= 1 year for the October
USSR tests which amounted to about 15 MT of fission added and
assume uniform fallout as far south as 30°N (this means 1 MT
of fission is equivalent to 2 mcs sr?/mt
*)
then the increase
in stratospheric fallout should be 30 mc/mi“/yr.
On this basis the present fallout rate in these latitudes
should be 1.6 me mi”/yr for world-wide stratospheric if 12 10 years
or
plus
3.2 me /mi/yr for world-wide stratospheric if +=5 years
30 me /mi=/yr at an average age of 3 months for totals of 32 or
33 me /mi*/yr
The sr°9/gr® ratios should be 115 for November
77 for December
51 for January
32 for February
DOS ARCHIVES