High Frequency Active Auroral Research Program
Field of research
|Location||Gakona, Alaska, United States|
|Affiliations||University of Alaska|
|Office of Naval Research
Air Force Research Laboratory
The High Frequency Active Auroral Research Program (HAARP) is an ionospheric research program jointly funded by the U.S. Air Force, the U.S. Navy, the University of Alaska, and the Defense Advanced Research Projects Agency (DARPA). Designed and built by BAE Advanced Technologies (BAEAT), its purpose is to analyze the ionosphere and investigate the potential for developing ionospheric enhancement technology for radio communications and surveillance. The HAARP program operates a major sub-arctic facility, named the HAARP Research Station, on an Air Force–owned site near Gakona, Alaska.
The most prominent instrument at the HAARP Station is the Ionospheric Research Instrument (IRI), a high-power radio frequency transmitter facility operating in the high frequency (HF) band. The IRI is used to temporarily excite a limited area of the Ionosphere. Other instruments, such as a VHF and a UHF radar, a fluxgate magnetometer, a digisonde (an ionospheric sounding device), and an induction magnetometer, are used to study the physical processes that occur in the excited region.
Work on the HAARP Station began in 1993. The current working IRI was completed in 2007, and its prime contractor was BAE Systems Advanced Technologies. As of 2008, HAARP had incurred around $250 million in tax-funded construction and operating costs. It was reported to be temporarily shut down in May 2013, awaiting a change of contractors. As of May 2014, it has been announced that the HAARP program will be shut down later in the year.
HAARP is a target of conspiracy theorists, who claim that it is capable of modifying weather, disabling satellites and exerting mind control over people, and that it is being used as a weapon against terrorists. Such theorists have blamed the program for causing earthquakes, droughts, storms and floods, diseases such as Gulf War Syndrome and Chronic Fatigue Syndrome, the 1996 crash of TWA Flight 800, and the 2003 destruction of the space shuttle Columbia. Commentators and scientists say that proponents of these theories are "uninformed", as most theories put forward fall well outside the abilities of the facility and often outside the scope of natural science.
The HAARP project directs a 3.6 MW signal, in the 2.8–10 MHz region of the HF (high-frequency) band, into the ionosphere. The signal may be pulsed or continuous. Then, effects of the transmission and any recovery period can be examined using associated instrumentation, including VHF and UHF radars, HF receivers, and optical cameras. According to the HAARP team, this will advance the study of basic natural processes that occur in the ionosphere under the natural but much stronger influence of solar interaction, and how the natural ionosphere affects radio signals.
This will enable scientists to develop methods to mitigate these effects to improve the reliability or performance of communication and navigation systems which would have a wide range of both civilian and military uses, such as an increased accuracy of GPS navigation and advances in underwater and underground research and applications. This may lead to improved methods for submarine communication or an ability to remotely sense and map the mineral content of the terrestrial subsurface, and perhaps underground complexes, of regions or countries, among other things. The current facility lacks range to be used in regions like the Middle East, according to one of the researchers involved, but the technology could be put on a mobile platform.
The HAARP program began in 1990. The project is funded by the Office of Naval Research and jointly managed by the ONR and Air Force Research Laboratory, with the principal involvement of the University of Alaska. Many other universities and educational institutions of the United States have been involved in the development of the project and its instruments, namely the University of Alaska Fairbanks, Stanford University, Penn State University (ARL), Boston College, UCLA, Clemson University, Dartmouth College, Cornell University, Johns Hopkins University, University of Maryland, College Park, University of Massachusetts Amherst, MIT, Polytechnic Institute of New York University, and the University of Tulsa. The project's specifications were developed by the universities, which are continuing to play a major role in the design of future research efforts.
According to HAARP's management, the project strives for openness, and all activities are logged and publicly available. Scientists without security clearances, even foreign nationals, are routinely allowed on site. The HAARP facility regularly (once a year on most years according to the HAARP home page) hosts open houses, during which time any civilian may tour the entire facility. In addition, scientific results obtained with HAARP are routinely published in major research journals (such as Geophysical Research Letters, or Journal of Geophysical Research), written both by university scientists (American and foreign) and by U.S. Department of Defense research lab scientists. Each summer, the HAARP holds a summer school for visiting students, including foreign nationals, giving them an opportunity to do research with one of the world's foremost research instruments.
HAARP's main goal is basic science research of the uppermost portion of the atmosphere, termed the ionosphere. Essentially a transition between the atmosphere and the magnetosphere, the ionosphere is where the atmosphere is thin enough that the sun's X-rays and UV rays can reach it, but thick enough that there are still enough molecules present to absorb those rays. Consequently, the ionosphere consists of a rapid increase in density of free electrons, beginning at ~70 km, reaching a peak at ~300 km, and then falling off again as the atmosphere disappears entirely by ~1,000 km. Various aspects of HAARP can study all of the main layers of the ionosphere.
The profile of the ionosphere is highly variable, changing constantly on timescales of minutes, hours, days, seasons, and years. This profile becomes even more complex near Earth's magnetic poles, where the nearly vertical alignment and intensity of earth's magnetic field can cause physical effects like aurorae.
The ionosphere is traditionally very difficult to measure. Balloons cannot reach it because the air is too thin, but satellites cannot orbit there because the air is still too thick. Hence, most experiments on the ionosphere give only small pieces of information. HAARP approaches the study of the ionosphere by following in the footsteps of an ionospheric heater called EISCAT near Tromsø, Norway. There, scientists pioneered exploration of the ionosphere by perturbing it with radio waves in the 2–10 MHz range, and studying how the ionosphere reacts. HAARP performs the same functions but with more power and a more flexible and agile HF beam.
Some of the main scientific findings from HAARP include
- Generating very low frequency radio waves by modulated heating of the auroral electrojet, useful because generating VLF waves ordinarily requires gigantic antennas
- Generating weak luminous glow (measurable, but below that visible with a naked eye) from absorbing HAARP's signal
- Generating extremely low frequency waves in the 0.1 Hz range. These are next to impossible to produce any other way, because the length of a transmit antenna is dictated by the wavelength of the signal it must emit.
- Generating whistler-mode VLF signals that enter the magnetosphere and propagate to the other hemisphere, interacting with Van Allen radiation belt particles along the way
- VLF remote sensing of the heated ionosphere
Research at the HAARP includes
- Plasma line observations
- Stimulated electron emission observations
- Gyro frequency heating research
- Spread F observations (blurring of ionospheric echoes of radio waves due to irregularities in electron density in the F layer)
- High velocity trace runs
- Airglow observations
- Heating induced scintillation observations
- VLF and ELF generation observations
- Radio observations of meteors
- Polar mesospheric summer echoes (PMSE) have been studied, probing the mesosphere using the IRI as a powerful radar, and with a 28 MHz radar, and two VHF radars at 49 MHz and 139 MHz. The presence of multiple radars spanning both HF and VHF bands allows scientists to make comparative measurements that may someday lead to an understanding of the processes that form these elusive phenomena.
- Research into extraterrestrial HF radar echos: the Lunar Echo experiment (2008).
- Testing of Spread Spectrum Transmitters (2009)
- Meteor shower impacts on the ionosphere
- Response and recovery of the ionosphere from solar flares and geomagnetic storms
- The effect of ionospheric disturbances on GPS satellite signal quality
- Producing high density plasma clouds in Earth's upper atmosphere
Instrumentation and operation
The main instrument at HAARP Station is the Ionospheric Research Instrument (IRI). This is a high power, high-frequency phased array radio transmitter with a set of 180 antennas, disposed in an array of 12x15 units that occupy a rectangle of about 33 acres (13 hectares). The IRI is used to temporarily energize a small portion of the ionosphere. The study of these disturbed volumes yields important information for understanding natural ionospheric processes.
During active ionospheric research, the signal generated by the transmitter system is delivered to the antenna array and transmitted in an upward direction. At an altitude between 70 to 350 km (43 to 217 mi) (depending on operating frequency), the signal is partially absorbed in a small volume several tens of kilometers in diameter and a few meters thick over the IRI. The intensity of the HF signal in the ionosphere is less than 3 µW/cm², tens of thousands of times less than the Sun's natural electromagnetic radiation reaching the earth and hundreds of times less than even the normal random variations in intensity of the Sun's natural ultraviolet (UV) energy which creates the ionosphere. The small effects that are produced, however, can be observed with the sensitive scientific instruments installed at the HAARP Station, and these observations can provide information about the dynamics of plasmas and insight into the processes of solar-terrestrial interactions.
Each antenna element consists of a crossed dipole that can be polarized for linear, ordinary mode (O-mode), or extraordinary mode (X-mode) transmission and reception. Each part of the two section crossed dipoles are individually fed from a specially designed, custom built transmitter, that operates at very low distortion levels. The Effective Radiated Power (ERP) of the IRI is limited by more than a factor of 10 at its lower operating frequencies. Much of this is due to higher antenna losses and a less efficient antenna pattern.
The IRI can transmit between 2.7 and 10 MHz, a frequency range that lies above the AM radio broadcast band and well below Citizens' Band frequency allocations. The HAARP Station is licensed to transmit only in certain segments of this frequency range, however. When the IRI is transmitting, the bandwidth of the transmitted signal is 100 kHz or less. The IRI can transmit in continuous waves (CW) or in pulses as short as 10 microseconds (µs). CW transmission is generally used for ionospheric modification, while transmission in short pulses frequently repeated is used as a radar system. Researchers can run experiments that use both modes of transmission, first modifying the ionosphere for a predetermined amount of time, then measuring the decay of modification effects with pulsed transmissions.
There are other geophysical instruments for research at the Station. Some of them are:
- A fluxgate magnetometer built by the University of Alaska Fairbanks Geophysical Institute, available to chart variations in the Earth's magnetic field. Rapid and sharp changes of it may indicate a geomagnetic storm.
- A digisonde that provides ionospheric profiles, allowing scientists to choose appropriate frequencies for IRI operation. The HAARP makes current and historic digisonde information available online.
- An induction magnetometer, provided by the University of Tokyo, that measures the changing geomagnetic field in the Ultra Low Frequency (ULF) range of 0–5 Hz.
The Station is powered by a set of five (5) 2500 kilowatt generators being driven by EMD 20-645-E4 diesel locomotive engines.
The project site (Gakona, Alaska just west of Wrangell-Saint Elias National Park. An environmental impact statement led to permission for an array of up to 180 antennas to be erected. The HAARP has been constructed at the previous site of an over-the-horizon radar (OTH) installation. A large structure, built to house the OTH now houses the HAARP control room, kitchen, and offices. Several other small structures house various instruments. The HAARP site has been constructed in three distinct phases:) is north of
- The Developmental Prototype (DP) had 18 antenna elements, organized in three columns by six rows. It was fed with a total of 360 kilowatts (kW) combined transmitter output power. The DP transmitted just enough power for the most basic of ionospheric testing.
- The Filled Developmental Prototype (FDP) had 48 antenna units arrayed in six columns by eight rows, with 960 kW of transmitter power. It was fairly comparable to other ionospheric heating facilities. This was used for a number of successful scientific experiments and ionospheric exploration campaigns over the years.
- The Final IRI (FIRI) is the final build of the IRI. It has 180 antenna units, organized in 15 columns by 12 rows, yielding a theoretical maximum gain of 31 dB. A total of 3.6 MW of transmitter power will feed it, but the power is focused in the upward direction by the geometry of the large phased array of antennas which allow the antennas to work together in controlling the direction. As of March 2007[update], all the antennas were in place, the final phase was completed and the antenna array was undergoing testing aimed at fine-tuning its performance to comply with safety requirements required by regulatory agencies. The facility officially began full operations in its final 3.6 MW transmitter power completed status in the summer of 2007, yielding an effective radiated power (ERP) of 5.1 Gigawatts or 97.1 dBW at maximum output. However, the site typically operates at a fraction of that value due to the lower antenna gain exhibited at standard operational frequencies.
In America, there are two related ionospheric heating facilities: the HIPAS, near Fairbanks, Alaska, which was dismantled in 2009, and (currently offline for reconstruction) one at the Arecibo Observatory in Puerto Rico. The European Incoherent Scatter Scientific Association (EISCAT) operates an ionospheric heating facility, capable of transmitting over 1 GW effective radiated power (ERP), near Tromsø, Norway. Russia has the Sura Ionospheric Heating Facility, in Vasilsursk near Nizhniy Novgorod, capable of transmitting 190 MW ERP.
HAARP is the subject of numerous conspiracy theories. Various individuals have speculated hidden motives and capabilities to the project. For example, Rosalie Bertell warned in 1996 for the deployment of HAARP as a military weapon. Michel Chossudovsky stated in a book published by the Committee on Monetary and Economic Reform that "recent scientific evidence suggests that HAARP is fully operational and has the ability of triggering floods, droughts, hurricanes and earthquakes. Over time, HAARP has been blamed for triggering catastrophes such as floods, droughts, hurricanes, thunderstorms, earthquakes in Iran, Pakistan, Haiti, Turkey, Greece and the Philippines, major power outages, the downing of TWA Flight 800, Gulf War syndrome, and chronic fatigue syndrome.
Allegations include the following:
- A Russian military journal wrote that ionospheric testing would "trigger a cascade of electrons that could flip earth's magnetic poles".
- The European Parliament and the Alaska state legislature held hearings about HAARP, the former citing "environmental concerns".
- Nick Begich Jr., the son of former U.S. Representative Nick Begich and author of Angels Don't Play This HAARP, has claimed that HAARP could trigger earthquakes and turn the upper atmosphere into a giant lens so that "the sky would literally appear to burn", and maintains a website that claims HAARP is a mind control device.
- Former Governor of Minnesota and noted conspiracy theorist Jesse Ventura questioned whether the government is using the site to manipulate the weather or to bombard people with mind-controlling radio waves. An Air Force spokeswoman said Ventura made an official request to visit the research station but was rejected-"he and his crew showed up at HAARP anyway and were denied access".
- Physicist Bernard Eastlund claimed that HAARP includes technology based on his own patents that has the capability to modify weather and neutralize satellites.
Stanford University professor Umran Inan told Popular Science that weather-control conspiracy theories were “completely uninformed,” explaining that “there’s absolutely nothing we can do to disturb the Earth’s [weather] systems. Even though the power HAARP radiates is very large, it’s minuscule compared with the power of a lightning flash—and there are 50 to 100 lightning flashes every second. HAARP’s intensity is very small.”
Computer scientist David Naiditch characterizes HAARP as "a magnet for conspiracy theorists", saying that HAARP attracts their attention because "its purpose seems deeply mysterious to the scientifically uninformed". Journalist Sharon Weinberger called HAARP "the Moby Dick of conspiracy theories" and said the popularity of conspiracy theories often overshadows the benefits HAARP may provide to the scientific community. Austin Baird writing in the Alaska Dispatch said, "What makes HAARP susceptible to conspiracy criticism is simple. The facility doesn't open its doors in the same way as other federally-funded research facilities around the country, and it doesn't go to great efforts to explain the importance of its research to the public."
In popular culture
The plot of Craig Baldwin's 1999 film "Spectres of the Spectrum" revolved around a futuristic war machine inspired by HAARP.
Topps, a trading card manufacturer, included a HAARP card in its 2013 "Allen and Ginter" trading card set. The card was featured in a subset of card titled "Curious Cases."
HAARP was shut down in early May 2013, awaiting a change between contractors who operate the facility. According to HAARP program manager James Keeney, "Defense Advanced Research Projects Agency (DARPA) is expected on site as a client to finish up some research in fall 2013 and winter 2014." The temporary shutdown was described as being due to "a contractor regime change." The Alaska Native corporation Ahtna, Incorporated is reportedly in talks to take over the facility administration contract from Marsh Creek, LLC.
|Wikimedia Commons has media related to High Frequency Active Auroral Research Program.|
- Ionospheric reflection
- Poker Flat Research Range
- Sura Ionospheric Heating Facility
- Weather Modification
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- Official website
- HAARP at EastlundScience.com – website of Bernard Eastlund's Scientific Enterprises Corporation.
- HAARP executive summary
- GoogleMaps satellite image of HAARP
- HAARP – Ангелы и плазмоиды (in Russian)