UNGEASSIFIED ‘ > as aS ~ a,’ { wa ec 1 ai vg 2,Neeay 7 ad ee ce ee I. Effects on the Ground The following effects of a high altitude test are predicted; there probably will be others as well, ‘ ell Rw ee hee tee ee he eh ee rene @t#etave 1. Electromagnetic Signal. ee oe 7. -_ Pa ee es *?F Pee Pe | eeen nn eane eene eae ef eens sf Pe Pee eenan e@na eaeraeareresev,e etme es tina pee we epee wp ee @ + « ee pees seeoete o * euoeovt eS ere . ree pe recee * . eer aes etm anvne tse te oe tee ne Beep aeeunse *#@eteemaeneer ewe tee teaenetee + eee eo ee eee ese eee ee ee ewe a te ve * . eee * . eee Bee eee eee eer ee ° * seep reas ee ee ee eePeeseaneavre ee ee sp P ee te * ese nep ee ee aves tee eee ere t * @ * . teat oF . @F esa tebe a @uee ete eee ee se * eee a ene ete ere he eae . er tileaceee ees ee . * eee ee opener eee woe eee emer * ae oe ee fe ¢ rh TC Be Spee hl hl hl se hl # hel oe a er el * erm ese ahaa eee ee * ere © . nat oe ®P Pee eer ee ee ee ee ee eenren +e sp sep ee peepee re ave ese © ese tee eee etetaeees . e se eofpeaempeeoeevarpuwaepeeen aes BPeeeeerwkeu wea ee tet aue ecenreea ee ee ee enue enenaes ee. +. e@eanhetpeeupeecet Pee * ee eee ew eee eee eee eee ene Pe + Pee eree uv @eprwPetreaveen eet ee tee ore erent aha teas te ataee iii Se sees ee ee ee eere sees ee teste toes eee * @~eepeese_enee aoe ew kr Peete eer e*#npeeee aos ee eeeneeseenseuseetenretP eee -“*#e#eeeve shen oe esaueeee ee * aetenuee rarer eer, eeeseeere tee eee eee er eee eee eet one -_f " Gwe ere . ees * ee oe eeep ee bat eat #eeeeees tere tetera were ese e eee ee eee et Pot eanres rere reeve Peutenere eee eeeeet *@teoetee ee? * ete eee eee eea reap vere eae eee erp rete ee eo “wee are ree er se ene enpeet eteere ee es & @ ? er Gee ee * -_ + ’ ee ere wee ®t wee . ee + etre ae ee ee ee ee peeaen oe . the eee etree awa ee Ce et see prpaeer ereeeetrepPeenpeeaevpenwseteueteeeea ee ere erent er es ee eer eee em eevw ere ee eee sen ewes Pe eeneereenepte oe asp ees ea en @ es #te © @uee est e me prepare sees t es Fe Se Fe * eter *. Stee ere Pee eee SF Bee tee eee ee eee ee ote ne ee eorereternarereaetnerees ~f @ wee pes o*@ feet a eee ese ee ee rs etseeereesezaewte Ce ae ten [a ee ad a oF 2 PF oe OP teeserereerFresee ee * ee ® eh pees ee @ eee eee ses wo Pe Baeoe rear ee tee * ‘J ft ee ee oa er cee ere of + eure a eae epee ee ewevpaanuea | wwe eee tet ee eee ee ee eee eee eee wee eee eee ee e ee _@ © ee we ewe ee . ese pee * tO me eae Bea te nee eee se eee ae eee * + € eee ee e ee * * ee ee Be oe @ ep er eee env ewe enepe he rh hh hh hh hh hh eh ee rene * eee see ewe ew eeee ewe ete he epee ereeereraevr ere Be ere ere eee r eee etree oF seeanre . ° hl hh . eres . eet oF ere nese m * ee ep we erPe eee eae seesaw re ee eee ne o* epee eee eae e+ es soree eee eee ee ee se ree eee eee eh . ada neoereotr er eee eehtatea rPa oepvpetree pee Pete vree er Pe hhh ee eoetrtee eer wpe hh ee hh oe hh hh eee ott pen @ hehe veaeeaenerereeene et * * eeeeaeneas ees @e pe se ee wee see ee ee eee eee ee eee ee emeeaep etree * * eaeevereretrereem teem eRe ee ee eee reese eens ee ern . * *¢# peo eee eeeenesetaeen aoe «et eete Cr * a ee we wees ten eee sree eee ee Ree eee eeneee ee eeas * * . . ee era een * evreer ern eonene CHEE EEE EEE! SIDE TEESE EEE 7 or fP io sa epee * oes pe * Be te eS * + eb e we eee eee eer eee eh hl hl heh lc rhc hl rll hl erm el al heehee hr er eh rh el eke kel ke ah ae ar er eka of * eanreeue +n en sere etree er ene ee nee perenne eer erent eee ee eee re ee he he heh Oh he Ot hh hh het seusee eae ere eesaesesese eee eee ee sea peewee eeweoenpeetemerrpeeraepesee lke eee trtorev re le ehh hhh rh hl hl hhlUc hl UL hla hh aha aevet . hc pep . ae oe 8 ee . . ee ere * ef ea eee eRe er eee ere ese tee eee eee eev ee eee we eso FPF st ++ 2 be te ope ter eer er ees ere hh eee eee eee se . . ee ee we aot Pewee @ Hw wh pe ewer ue ww @ he epee ewe wre es * * eee ee ere eaeat oe ee rp esc esaeenaereenpereeae ‘ peo a ee wp ee eee eee steerer . ee eee eee eee mea eeeee ef eee rhc ee eee ee ee eh .. se meee hhc hl hl tes . @ eee ueeoe * *rpeereere eeeaat ee se ene ee ra ee ewe nse sesn e+ rt At 2. Radio and Radar Blackout by X-Rays and X-Rays. the air test, the from ons directi all in miles distances up to about 600 will lead This bomb. the from X~rays the by ionized y will be strongl the to a blackout of the reflection of electromagnetic waves from i " ; ncies uP to ee ionosphere which is normally observed for freque s and can be ‘ minute few a for last will t blackou The megacycles. echoes or y observed either by means of direct vertical ionosphere with the ation combin In . another to n means of beams from one statio . uniquely. . u : : i + a 000 feet This blackout effect will be strong for tests from 200, be will up, including those conducted above the atmosphere. It ) UNCLASSIFIED e. observable down to about 70, 000 feet test altitud (At the lower ee — ee Te weet CO . . ; e rather EM signal under 1, it identifies nuclear teats at high altitud ‘ ‘ . * evo kre ee Be ae le cane * 7 eee emer er eee eeen ae #eaanven + A le eeeeeemstemee ee ee eee eee i ee ue PRFee ewe * fF se o¢ espe ee . ape eb se ep ere vf se * oa . we . Pe * eecnre ee . | eee 3 Te ae a aa) eT Fo ce i ' er pee eae eer eve . } t | @ sete trp . 1 oe eee . bee Pe nese AP ED \ we mote wm eeeue

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