for the traverses indicated. it wi.io» noted tnaat the east-west profile particularly snows that tne siope ° the lip is very slight and that there is almest no elevation atove tne original ground level. As a result of tris gentle slope tne rad:. at criginal grounc level becomes difficult tc the contour maps. determine and ve , ensitive to elevation errors in The upper part of Fig. 3.14 : «& map of tne Shot 3 area showing the traverses made oy tne snip wniue *ne dava for the profiles were being taken. The profiles are Snow. oc. tne pottom of Fig. 3.10 and Fig. 3.11. Merk rumoers are snown on tie traverses and on the profiles. It is to be ncted =nat the survey cr Snot 4 was made 24 days after the shot itself anc that tne wave producec ny Shot 4 had completely inundated the lip <f tne Snot % crater. he: ause of the righ level of radioactivity it wes acy oassible to accompl sn any survey cf the abovewater portion f t.e ‘rater and comsewuentl. toe diameters and the heignt of tne .1: 47 "n2 Original « tin ‘evel are subject to some uncertainti. 345 SHOT « Figures :.42 and 4.13 show a simt ar map and profiles of the Shot 4 area. Agair tne numbers or tae ?i@ures correspond to mark numbers taken during tne survey. As noted in section 2.3.2, because of the interference cc! otner activities or tne day tne survey was made, it was not possible tc run jdiametral traverses and. as shown on Fig. 3.12, the chord traverses actually depart from toe center rather far. For this reason a diametrai profile, ABCOE. nas seen estimated from tne results of the three <norc profiles shown. ry to toe snot the lagoon floor at tne snot pcint was at a depts of was guite irresu.e~, wWitc 4a senera. and wits @ laree tnat tne effec* rectly under the ty. Mud or fine the profiles e* rumser of ccral neac:., Tne post-snot survey indicated of tie Smoot was t ‘ en ra~.ze or depress tne pottom di¢.ot point and te ‘est -.ly tne coral neads in tne vicini(almost suspended san! wa: deposited as indicated in « by HRN during ‘se of 250 ft. 346 “t. The bottom in tne vicinity s.-.e toward tne center of the lagoon .oifcrm deptn 2: ciacement -T ape. tae .& ae 2+ “p> ft. Lead line soundings a later snot gave a depth COMPARTS(NWITHCTHEP SURFAC2 SE. On Fig. ..+ crater raciu .+ ; co. ted as a function of yield (log scales botn we.s ‘:: @ll surface oucts “or wahicn data are readily available. Trese cate .no.cde ene 2c TN” n4arges in clay and si.lt-gravel at Utah and Nevada, togetner with sim.a cuarges in wet clay and sand at Camp. Cooke. fil t.e ctner points a: e ».:lea- explosions ranging from the JANGLE surtacve snot in Nevaca 7 AAcTLE Gnet -, IVY Mike, and CAS- TLE Shot loin ‘he rac.vic. Thus, ° & pis plotted include a wide variation un .Cl. (naracteristils an. 42. sxtcemel. wide variation in yield. It is part .tucarly tc oe 1 *@1 of the gross «.ffere7-*® in energy tart: + plosives. Wh oe * e@ weints plctte: Ht no account nas been taken ion v.etween TNT and nuclear ex*4e cing_e exception of tne