![]() Instrumentation development, blast, ground shock, electromagnetic and debris measurements as well as biomedical and underground target tests. Obtain data on tree blowdown and blast effects in a rainforest environment Increase the scope and reliability of the scaling factor for damage to military vehicles from sub-kiloton yields. ![]() Measure blast effects, including outgoing shock and blast waves and various ground effects. Tasks included blast geometry, seismic measurements, and throwout distribution, pressure measurements, and other cratering phenomena. Verify and refine apparent departures from cube-root scaling. Included observations of ground motion, crater dimensions, throwout distribution, and a clarification of scaling laws. Provide technical and scientific information concerning the mechanics of crater formation by large underground chemical explosions and to relate craters produced by chemical and nuclear explosives. Scale the base surge of a high-explosive in shallow water with Test Baker of Operation Crossroads at Bikini.ĭetermine whether exploding an HE charge in the center of an underground sphere would produce seismic decoupling of the shock wave.Ĭompare airblast effectiveness of ground burst cast TNT charges and those made up from a large number of cast blocks of TNT detonated in contact with frozen and unfrozen prairie.Ĭratering tests comparing effects of yield, depth of burst, and surrounding medium. Sevier Bridge Reservoir, Salt Lake City, Utah Mississippi River near Vicksburg, Mississippiĭetermine effects of a 20-kt nuclear explosion in water depths typical of harbor areas. To compare cratering in dry sand, clay, wet clay, limestone, granite, and sandstone.Ĭomparison of saturated coral with Nevada soil. To study the generation and propagation of explosive waves from underground detonations and the effects of these waves on underground structures. Obtain data on the scaling of surface phenomena from shallow underwater explosions and studies of base surge and water formation. NameĬalibration test preceding the first nuclear explosion The following is a list of such events with yields of more than 1000 pounds. ![]() Large scale field tests using conventional high explosives were devised to this end. These would allow obtaining data related to air-blast, ground-shock, structure-response data, bio-medical effects, and other various phenomena. However, alternatives to atmospheric nuclear testing were required to continue the study of nuclear weapons effects. When the Limited Test Ban Treaty came into effect in 1963, nuclear testing in the atmosphere was prohibited.
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