BLAST-WAVE MASS-MOTION MEASUREMENTS

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Abstract:

Operation Ivy was instrumented for the mass-motion method of pressure measurement in a manner similar to that used on Operations BusterJangle 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 graphic 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 ft 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.

Author(s):
Seacord, Jr, Daniel F.
Author Organization(s):
LOS ALAMOS NATIONAL LAB NM
Supplementary Note:
Report on Operation Ivy, Project 6.2. (U)
Pagination:
0054

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release, Document Partially Illegible
Distribution Statement:
Approved For Public Release; Distribution Is Unlimited. Document Partially Illegible.

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
AEC-WT-627
Monitor Series:
WT-627, DASA
 Subject Terms
Joint Capability Areas:
JCA_3.2_Engagement; JCA_3_Force Application; JCA_3.2.1_Kinetic Means; JCA_1_Force Support; JCA_1.2_Force Preparation; JCA_1.2.1_Training; JCA_5.3_Planning; JCA_5_Command and Control; JCA_6_Net Centric
Communities of Interest:
Weapons Technologies
Descriptor(s):
*BAROMETRIC PRESSURE, *NUCLEAR EXPLOSIONS
Field(s)/Group(s):
Nuclear Weapons
Keyword(s):
ENIWETOK ATOLL, IVY OPERATION, KING SHOT, MIKE SHOT, OVERPRESSURE, LOW ALTITUDE, HIGH ALTITUDE, MEASUREMENT, SHOCK WAVES, PHOTOGRAPHIC ANALYSIS, FLUID DYNAMICS, HYDRODYNAMIC CONFIGURATIONS, SMOKE PROJECTILES, MOTION PICTURE CAMERAS, ANTIAIRCRAFT GUNS, MICRONESIA, METEOROLOGICAL PHENOMENA, INSTRUMENTATION
Report Date:
1953 Jun 01