Experimental studies of thunderstorm electrification

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086 0 ‡aD 301.45/39:567
088 ‡aADA 032374
088 ‡aAFGL TR 76-128
100 1 ‡aFitzgerald, Donald R.
245 1 0 ‡aExperimental studies of thunderstorm electrification / ‡cDonald R. Fitzgerald.
264 1 ‡aHanscom AFB, Massachusetts : ‡bAir Force Geophysics Laboratories, Air Force Systems Command, United States Air Force, ‡c1976.
300 ‡a40 pages : ‡billustrations ; ‡c28 cm.
336 ‡atext ‡btxt ‡2rdacontent
337 ‡aunmediated ‡bn ‡2rdamedia
338 ‡avolume ‡bnc ‡2rdacarrier
490 0 ‡aAFGL-TR ; ‡v76-128
490 0 ‡aEnvironmental Research Papers ; ‡vNo. 567
500 ‡aResearch supported by the Air Force Geophysics Laboratory, Air Force Systems Command, United States Air Force, Hanscom AFB, Massachusetts.
500 ‡aMeteorology Division Project 8620.
500 ‡aADA032374 (from http://www.dtic.mil).
500 ‡a"22 June 1976."
504 ‡aIncludes bibliographical references (pages 39-40).
520 ‡aAirborne electric field sensing and computing systems have been developed and flown on C-130, F-100F, RF4C, and U-2 aircraft for studies of shower, cloud, and thunderstorm charge centers. Examples are given of the proper separation of field components and aircraft charge during thunderstorm penetrations and during direct lightning strikes to the test aircraft. Techniques have been employed for roll compensation of the aircraft-fixed field components so that real-time vector displays indicating the centroid of near-by charge concentrations are available for use in avoidance of probable lightning areas, or for use in selecting them to maximize the probability of a strike to test aircraft during lightning-aircraft interaction studies. The development of the storm electrical structure is directly related to details of the cloud water and ice distribution linked through the thermal and draft structure in the storm. Major features of the internal electrical pattern are often seen in data taken above, alongside, or at the surface. However, in accordance with electrostatic field theory, many of the fine structural details found within the storm are suppressed outside. The major vertical component field pattern is found to be one that could be produced by simple tilted dipolar charge structures. Depending on the physical conditions in different regions of the storm, the upper excess charge of the dipole may be either positive as generally reported from surface observations of the field, or it may be negative, as found in a number of the U-2 storm overflights accomplished in this project. (Author).
538 ‡aMode of access: Internet.
650 7 ‡aThunderstorms. ‡2fast ‡0http://id.worldcat.org/fast/1150494
650 7 ‡aLightning. ‡2fast ‡0http://id.worldcat.org/fast/998677
650 7 ‡aCloud physics. ‡2fast ‡0http://id.worldcat.org/fast/864839
650 7 ‡aAtmospheric electricity. ‡2fast ‡0http://id.worldcat.org/fast/820428
650 7 ‡aAeronautics in meteorology. ‡2fast ‡0http://id.worldcat.org/fast/798444
650 7 ‡aAeronautical instruments. ‡2fast ‡0http://id.worldcat.org/fast/798270
650 0 ‡aCloud physics. ‡0http://id.loc.gov/authorities/subjects/sh85027188
650 0 ‡aLightning. ‡0http://id.loc.gov/authorities/subjects/sh85076931
650 0 ‡aThunderstorms. ‡0http://id.loc.gov/authorities/subjects/sh85135120
650 0 ‡aAtmospheric electricity. ‡0http://id.loc.gov/authorities/subjects/sh85009284
650 0 ‡aAeronautical instruments. ‡0http://id.loc.gov/authorities/subjects/sh85001309
650 0 ‡aAeronautics in meteorology. ‡0http://id.loc.gov/authorities/subjects/sh85001400
710 2 ‡aU.S. Air Force Geophysics Laboratory. ‡0http://id.loc.gov/authorities/names/n79109638 ‡1http://id.loc.gov/rwo/agents/n79109638
730 0 ‡aTechnical Report Archive & Image Library (TRAIL)
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