proager MICRONESIA; MATERIALS; Subject Categories: Author(s): 450202* MAAANRVS, ANoALLN NUCLEAR EXPLOSIONS; LolLANUS; NAZAMYD;, OCEANIA -- Explosions & Explosives -- Nuclear ~~ (-1989) Weaponry -- 10/5/498 01877608 BArLVOLUIND; weavuvo;, LeELrNs: (Item 198 from file: 103) ERA-12-005135; EDB-87-005241 Seacord, D.F. Title: Operation Ivy. Project 6.2. Report to the Scientific Director. Blast-wave mass-motion measurements Corporate Source: Publication Date: Report Number(s): Document Type: Los Alamos National Lab., 1 Sep 1985 p 52 AD-A-995407/4/XAB NM (USA) Report Language: English Journal Announcement: EDB8611 Availability: NTIS, PC AO04/MF AOl. Subfile: ERA (Energy Research Abstracts). Country of Origin: United States Country of Pubbication: United States GRA (NTIS NTS) Abstract: OPERATION IVY was instrumented for the mass-motion method of pressure measurement in a manner similar to that used on OPERATIONS BUSTER-JANGLE and TUMBLER-SNAPPER. Low-altitude pyrotechnic mortar bursts and high-altitude gun bursts (on Mike only) labeled the air for photographic recording. The methods of instrumentation are described, the method of data analysis is outlined and derived data on time of arrival, peak material velocity, peak shock velocity, and peak overpressure are presented in tabular and graphical form. Appendixes present meteorological and ballistic data and calculations. An outstanding conclusion of the experiment is the lowness of peak overpressures near the surface compared with the peak overpressures at altitudes up to 25,000 feet because of the effect of atmospheric inhomogeneity at long ranges. The mass-motion technique offers a useful diagnostic tool for the determination of total hydrodynamic yield. Major Descriptors: *IVY PROJECT; *NUCLEAR EXPLOSIONS -- SHOCK WAVES; *SHOCK WAVES -- PRESSURE MEASUREMENT Descriptors: ALTITUDE; HYDRODYNAMICS; MASS; MOTION; VELOCITY Broader Terms: BXPLOSIONS; FLUID MECHANICS; MECHANICS; NUCLEAR EXPLOSIONS Subject Categories: 450202* Weaponry -- (-1989) 10/5/499 01877607 (Item 199 from file: Author(s): Gaylord, Source: Publication Date: Report Number(s): Document 103) BRA-12-005134; EDB-87-005240 J.L. Title: Operation Ivy. photography Corporate -- Explosions & Explosives -- Nuclear -- Type: Report to the Scientific Director. Documentary Lookout Mountain Lab., 1 Sep 1985 p 66 AD-A-995406/6/XAB Los Angeles, CA (USA) Report Language: English Journal Announcement: EDB8611 Availability: NTIS, PC AO4/MF AOl. Subfile: ERA (Energy Research Abstracts). Country of Origin: United States GRA (NTIS NTS) Country of Publication: United States Abstract: The objective of Task Unit 9 was to record on film, both still and motion picture, the activities connected with certain events and programs of Operation Ivy. Task Unit 9 accomplished all the necessary field photography and was still in the process of editing this footage to form a completed motion-picture record at the time this report was written. Major Descriptors: Broader Terms: *IVY PROJECT; EXPLOSIONS; Subject Categories: 9003786 450202* *NUCLEAR EXPLOSIONS -- PHOTOGRAPHY NUCLEAR EXPLOSIONS -- Explosions & Explosives -- Nuclear --