Document Details


Title:
OPERATION DOMINIC, FISHBOWL SERIES PROJECT OFFICER'S REPORT - PROJECT 9.1A ATMOSPHERIC PROPERTIES ( 3-26-65 ) (DELETED)
Author(s):
CHAMPION, K S.W. [AIR FORCE CAMBRIDGE RESEARCH LABORATORY]; FAIRE, A C [AIR FORCE CAMBRIDGE RESEARCH LABORATORY]
Subject Terms:
DOMINIC I OPERATION; CHECKMATE EVENT; BLUEGILL 3PRIME EVENT; KINGFISH EVENT; TIGHTROPE EVENT; BLAST EFFECTS; EARTH ATMOSPHERE; DATA; MEASURING METHODS; EQUIPMENT; PHOTOGRAPHS; FISHBOWL SERIES
Document Location:
Location - NNSA/NSO Nuclear Testing Archive Address - P.O. Box 98521 City - Las Vegas State - NV Zip - 89193-8521 Phone - (702)794-5106 Fax - (702)862-4240 Email - CIC@NV.DOE.GOV
Document Type:
REPORT
Publication Date:
1985 Sep 01
Declassification Status:
Sanitized
Document Pages:
0239
Accession Number:
NV0051092
Document Number(s):
POR2040EX
Originating Research Org.:
AIR FORCE CAMBRIDGE RESEARCH LABORATORY
OpenNet Entry Date:
1994 Aug 26
Description/Abstract:
THE FIRST EXPERIMENTAL OBJECTIVE IN SUPPORT OF THE FISH BOWL SERIES WA S TO MAKE ACCURATE MEASUREMENTS OF THE PHYSICAL PROPERTIES OF THE NORM AL ATMOSPHERE (1) TO PROVIDE INFORMATION REQUIRED FOR AN ACCURATE ANAL YSIS OF BLAST AND SHOCK WAVE DATA, (2) TO PROVIDE DENSITY DATA PERMITT ING A MORE PRECISE DETERMINATION OF THE THOR REENTRY TRAJECTORY AND (3 ) TO PROVIDE DATA REQUIRED FOR ACCURATE DETERMINATION OF THE FUNCTIONA L RELATIONSHIP BETWEEN THE IONIZATION PRODUCED BY THE DETONATION AND T HE RADIATION THAT PRODUCED IT. THE SECOND OBJECTIVE WAS TO MAKE MEASUR EMENTS SHORTLY AFTER EACH NUCLEAR DETONATION TO MEASURE HEATING AND CH ANGES IN ATMOSPHERIC DENSITY AND PRESSURE IN THE VICINITY OF THE FIREB ATMOSPHERIC DENSITY PROFILES WERE MEASURED ON NINE OCCASIONS DURING TH E FISH BOWL SERIES. FIVE OF THESE MEASUREMENTS WERE OF THE NORMAL ATMO SPHERE, AT DIFFERENT TIMES OF DAY AND SEASONS, AND FOUR WERE MADE FOLL OWING NUCLEAR DETONATIONS. THE MEASUREMENTS OF THE NORMAL ATMOSPHERE W ERE MAD AT DIFFERENT TIMES SO THAT ACCURATE INFORMATION WOULD BE AVAIL ABLE ON DIURNAL AND OTHER VARIATIONS. THIS DATA WAS OBTAINED: (1) TO P ROVIDE INFORMATION FOR AN ACCURATE ANALYSIS OF BLAST AND SHOCK WAVE DA TA, (2) TO PROVIDE DENSITY DATA THAT WOULD PERMIT A MORE PRECISE DETER MINATION OF THE THOR RE-ENTRY TRAJECTORY FOR BLUE GILL AND, (3) TO PRO VIDE DATA SO THAT THE IONIZATION PRODUCED BY A TEST CAN BE ACCURATELY RLATED TO THE RADIATION THAT PRODUCES IT. THE TECHNIQUE USED WAS TO EJ ECT A SPHERE, INSTRUMENTED WITH AN ACCELEROMETER AND TELEMETRY TRANSMI TTER, FROM THE SECOND STAGE OF A NIKE-CAJUN ROCKET. THE SPHERE WAS TRA CKED BY A GROUND STATION, AND THE RECORDED DATA GAVE DRAG ACCELERATION AS A FUNCTION OF TIME OF FLIGHT. THIS YIELDED DENSITY, AND WITH THE US E OF ADDITIONAL THEORY, TEMPERATURE AND PRESSURE WERE DEDUCED. EXCELLE NT DATA WAS OBTAINED FROM ALL ROCKETS, AND EXCEPT IN ONE CASE, IT CORR ESPONDED TO ALTITUDES BETWEEN 30 AND 11KM. THE BACK-GROUND DATA IS IN GENERAL AGREEMENT WITH THE AVAILABLE MODELS, BUT THERE ARE SOME IMPORT ANT DIFFERENCES. IN ADDITION, IT WILL MAKE IT POSSIBLE TO EXTEND THE P RESENT TROPICAL ATMOSPHERE MODEL FROM 90 TO 110KM. THE MEASUREMENTS AF TER THE NUCLEAR DETONATIONS WERE MADE TO MEASURE HEATING OF THE ATMOSP HERE AND RELATED PRESSURE AND DENSITY CHANGES PRODUCED BY THE FIREBALL . ROCKETS WERE LAUNCHED AT H+10 MINUTES ON CHECK MATE, H+15 MINUTES ON BLUE GILL TRIPLE PRIME, H+10 MINUTES ON KING FISH, AND H+4 MINUTES ON TIGHT ROPE. PRESSURE AND DENSITY CHANGES AS LARGE AS 50 PERCENT FROM N ORMAL WERE RECORDED. MAXIMUM TEMPERATURE INCREASE OBSERVED WAS 40 DEGR EES C., EXCEPT FOLLOWING TIGHT ROPE WHEN THE INCREASE (RELATIVELY CLOS E TO THE FIREBALL) MAY HAVE BEEN MORE THAN 300 DEGREES C.


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