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List, Robert J.; Salter, Leonard P.; Telegadas, Kosta (2011)
Publisher: Co-Action Publishing
Journal: Tellus A
Languages: English
Types: Article
Two meteorologically interesting radioactive tracers, Cd-109 injected in 1962 at 400 km by a rocket-borne nuclear device and Pu-238 resulting from the reentry burnup in 1964 of a nuclear powered satellite in the 40–60 km altitude range, are examined and compared with the results of the Rh-102 experiment conducted in 1958. Although detonated at 17° N, the maximum concentration of Cd-109 was detected by the highaltitude balloon samples collected at 34° S. It first appeared at the highest altitude sampled, 32 km, and subsequently seemed to propagate downward at about 1.5 km per month. A second similar surge of Cd-109 was observed at 34° S about a year later. Maximum concentration of Pu-238 also occurred at 32 km at 34° S. Slightly lower concentrations were observed at this altitude in northern temperate and polar regions while concentrations near the equator were an order of magnitude lower. Although the Pu-238 distribution could result from either diffusive mixing along sloping surfaces or from meridional transport, the two surges of Cd-109 suggest poleward transport and subsequent reinforcement from a polar reservoir.DOI: 10.1111/j.2153-3490.1966.tb00246.x
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    • kiCCJIenOBaH0 A B a PaAMOaKTMBHbIX T p a C C e p a , n p e A c T a B m I o q a x M e T e p e o n o r m e c K M i H H T e p e c : Cd-109 MHH(eKTMP0BaHHbIfi B 1962 r. H a BbICOTe 400 KM C IIOMOWbIO R n e p H O r O MeXaHM3Ma, noMeWeHHOrO H a p a K e T e H Pu-238 06pa30BaB111erOCR H a BbICOTe 40-60 KM B 1964 .'I B p e 3 y J I b T a T e C r O p a H M R IIpM BXOAe B aTMOC@epy CIlyTHHKa C RnePHbIM nBHraTeJIeM. 3 T M p e 3 y J I b T a T b I C p a B H H - BaIOTCH C AaHHbIMM 3KCnepMMeHTOB B Rh-102 BbInOJIHeHHbIX B 1958 l'. X O T R H H X e K q M R np0- M30UIJI8 H a 17" C. IU., MaKCMMYM K O H q e H T p a - I(MH Cd-109 6b1n o n p e H e n e H B npo6ax B3RTbIX B~ICOTHMMH m a p a m npn 34" KI.IU. C H a s a n a 3TOT MaKCHMYM IIOHBMJICFI B npo6ax C 60nbmnx B ~ I C O T (32 KM), M B n o c n e n c T B m p a c n p o c T p a - HRJICR BHH3, n p M M e p H 0 , H a 1,5 KM B MeCRIq.
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