Apparent-Crater Studies

摘要

Project Pre-SCHOONER II was an 85.5-ton nitromethane detonation conducted by the United States Army Engineer Nuclear Cratering Group as a part of the Joint Atomic Energy Commission-Corps of Engineers nuclear excavation research program. The charge was detonated on 30 September 1965 in hard, dry rhyolite rock at a depth of burst of 71 feet (scaled depth of 142 ft/kt1/3,4 based on an energy equivalent yield of 94.1 tons). Surface Ground Zero was located approximately 40 miles southwest of Bruneau, Idaho.nAerial stereophotogrammetric mapping and conventional field survey techniques were used to determine the apparent-crater measurements of the Pre-Schooner II detonation.