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This is Volume 2 of the Ministry of Defence report 'Unidentified Aerial Phenomena in the UK Air Defence Region', Defence Intelligence Staff Scientific and Technical Memorandum 55/2/00, dated February 2000 and received 7 December 2000. It gathers 25 working papers on natural and man-made phenomena, meant as a reference for analysing UAP reports. The papers cover ball lightning, radar detection, balloons, satellites, mirages, plasma and similar subjects. One paper compares magnetic field experiments on human volunteers with close encounter reports. It concludes that effects from such fields are 'uncannily similar' to what witnesses describe.
“Mineral Wells”2 pages
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8. Hessdalen is a small valley in the middle part of Norway, South East of Trondheim. In that valley strange unknown lights first showed up hundreds of times between 1981 and 1985. It was given the name "The Hessdalen Phenomenon"and the project was linked with the Norwegian Defence Research Establishment. 9. In June 1983 "Project Hessdalen" started, the main purpose of which was to collect as much scientific data as possible. During the autumn a research programme was established, and the work in the field started 21 January 1984 and ended 26 February 1984. A research station was set up in Hessdalen, with eight different kinds of instruments: ## Camera with grating Three pictures showed a continuous spectrum but no spectral-lines were seen. ## IR-viewer This instrument was used too little to draw any conclusions. ## Spectrum-analyser Sometimes there were electromagnetic signals with harmonics of about 80MHz. ## Seismograph No local seismographic activity was detected. [This, of course is contrary to the expectation of the effect being initiated by normally detectable seismic activity]. ## Magnetograph The magnetic field did sometimes change when the lights showed up. There also seemed to be a correlation with the magnetic pulsation. ## Radar The lights could be seen on the radar. The speed varied all the way from 0 to 30,000 km/hour. Sometimes the radar saw something moving at a low speed, but no lights were seen by eye. Clearly, something was there, but only the radar could detect it. ## Laser a laser-beam was directed toward the light and the behaviour of the light reportedly changed. Out of nine occasions the light changed on eight attempts, and reportedly reverted to the original state when the laser was switched off. There could, of course be several interpretations placed on this phenomena [the most bizarre of which is that known as a 'Close Encounter of the 5th kind' - see Volume 1 of this report]. A more realistic explanation may be that the laser light, being coherent, interacted with the light/energy supplied by the 'earthlight' to produce a different colour for the human observer - which would then clearly revert to its original colour unless some other more permanent or ongoing change was taking place anyway - for example a decay in the energy of the airborne mass. ## Geiger-counter No radioactivity was detected. But the source was 1km away when this instrument was used. Sometimes the lights at Hessdalen lasted for more than two hours in one place before they moved. Literally hundreds of instances have
Document, cited by the archive. The PDF is mirrored here; the original link is above. The text was read from the page images by GLM-OCR; expect the odd misread word. 258 pages are in the text index: search them above, or from the library's search.