Project Argus (1958)
Between August and September 1958, the US Navy exploded three fission type nuclear bombs 480 km above the South Atlantic Ocean, in the part of the lower Van Allen Belt closest to the earth's surface. In addition, two hydrogen bombs were detonated 160 km over Johnston Island in the Pacific. The military called this "the biggest scientific experiment ever undertaken." ......The purpose appears to be to assess the impact of high altitude nuclear explosions on radio transmission and radar operations because of the electromagnetic pulse (EMP), and to increase understanding of the geomagnetic field and the behavior of the charged particles in it.
This gigantic experiment created new (inner) magnetic radiation belts encompassing almost the whole earth, and injected sufficient electrons and other energetic particles into the ionosphere to cause world wide effects. The electrons traveled back and forth along magnetic force lines, causing an artificial "aurora" when striking the atmosphere near the North Pole.
Project Starfish (1962)
On July 9, 1962, the US began a further series of experiments with the ionosphere. From their description: "one kiloton device, at a height of 60 km and one megaton and one multi-megaton, at several hundred kilometers height" (K.H.A., 29 June 1962). These tests seriously disturbed the lower Van Allen Belt, substantially altering its shape and intensity. "In this experiment the inner Van Allen Belt will be practically destroyed for a period of time; particles from the Belt will be transported to the atmosphere. It is anticipated that the earth's magnetic field will be disturbed over long distances for several hours, preventing radio communication. The explosion in the inner radiation belt will create an artificial dome of polar light that will be visible from Los Angeles" (K.H.A. 11 May 1962). A Fijian Sailor, present at this nuclear explosion, told me that the whole sky was on fire and he thought it would be the end of the world.......
The lower Van Allen Belt, consisting of charged particles that move along the geomagnetic field lines... will similarly be disrupted. As a result of the explosion, this field will be locally destroyed, while countless new electrons will be introduced into the lower belt" (K.H.A. 11 May 1962). "On 19 July... NASA announced that as a consequence of the high altitude nuclear test of July 9, a new radiation belt had been formed, stretching from a height of about 400 km to 1600 km; it can be seen as a temporary extension of the lower Van Allen Belt" (K.H.A. 5 August 1962).
As explained in the Encyclopedia Britannica: "... Starfish made a much wider belt
that extends from low altitude out past L=3 ." Later in 1962, the USSR undertook similar planetary experiments, creating three new radiation belts between 7,000 and 13,000 km above the earth. According to the Encyclopedia, the electron fluxes in the lower Van Allen Belt have changed markedly since the 1962 high- altitude nuclear explosions by the US and USSR, never returning to their former state. According to American scientists, it could take many hundreds of years for the Van Allen Belts to destabilize at their normal levels
Mighty Oaks (1986)
In April 1986, just before the Chernobyl disaster, the US had a failed hydrogen test at the Nevada Test Site called Mighty Oaks. This test, conducted far underground, consisted of a hydrogen bomb explosion in one chamber, with a leaded steel door to the chamber, two meters thick, closing within milliseconds of the blast. The door was to allow only the first radioactive beam to escape into the "control room" in which expensive instrumentation was located. The radiation was to be captured as a weapon beam. The door failed to close as quickly as planned, causing the radioactive gases and debris to fill the control room, destroying millions of dollars worth of equipment. The experiment was part of a program to develop X-ray and particle beam weapons. The radioactive releases from Mighty Oaks were vented, under a "licensed venting" and were likely responsible for many of the North American nuclear fallout reports in May 1986, which were attributed to the Chernobyl disaster.
Much more..http://www.earthpulse.com/haarp/background.html