Radioactive debris as a tracer for investigating stratospheric motions

Article English OPEN
List, Robert J. ; Salter, Leonard P. ; Telegadas, Kosta (2011)

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
  • References (8)

    D'ARcY,R. G., and COLOATSE. ,A., 1965, Measure- active Fallout from Nuclear Weapons Tests.

    ments at the southern magnetic conjugate region USAEC Rep. CONF-765 (in press).

    of the fission debris from the Starfish nuclear MACHTAL,., 1965, Calculations of Pu-238 concendetonation. J . Beophys. Res., 70 (13),3147-59. trations from the SNAP-9A burnup. Health and FEELYH,. W., and SPAR,J., 1960, Tungsten 185 Safety Lab., USAEC Publ. HASL-155, pp. 297- from nuclear bomb tests as a tracer for strato- 301.

    spheric meteorology. Nature 188, 1062. MACHTLA.,, 1966, Some aspects of simulating large FEELYH, . W., Private communication. scale atmospheric mixing. Tellus, 18 (in press).

    HANSENH, . E., CLARK, A. J., and BENTZA,. E., SALTERL,. P., 1964, Note on the detectability of 1965, Final Report on Re-entry Plight Demon- cadmium isotopes from Starfish in 1964 ground stration No. 2. Sandia Corporation Report SC- level samples. Health and Safety Lab., USAEC RR-65-43. Publ. HASL-142,pp. 303-5.

    HARLEYJ,. H., 1964, Possible Pu-238 distribution SALTERL,. P., 1965, Stratospheric radioactivity in from a satellite failure. Health and Safety Lab., the southern hemisphere from 1961 and 1962 USAEC Publ. HASL-149,pp. 138-141. weapons tests. Proc. of the Second AEC Conference KALKSTEIMN.,J., 1962,Rhodium 102 high altitude on Radioactive Fallout From Nuclear Weapons tracer experiment, 1. Stratospheric results. U.S. Tests, USAEC Rep. CONF-765 (in press).

    Air Force Publ. AFCRL-62-4601(). TELEOADAKS., and LIST,R. J., 1964, Global hisKALESTEINM,. J., THOMASIAAN.,, and NIKULA, tory of the 1958 nuclear debris and its meteoroJ. V., 1965, Cd-109 results up to 20 kilometers. logical implications. J . Ueophys. Res., 69 (ZZ), Proc. of the Second AEC Conference o n Radio- 4741-53.

    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.

  • Metrics
    No metrics available
Share - Bookmark