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  • Preventing disasters from space

    PREVENTING DISASTERS FROM SPACE

    RIA Novosti, Russia
    Dec 6 2004

    MOSCOW (Space Research Institute expert Yury Zaitsev for RIA Novosti)
    - In the last few years, natural disasters have become more frequent
    and caused more damage. Undesirable and dangerous processes are
    triggered by the environmental damage caused by technological
    progress. Natural disasters and accidents like earthquakes, volcanic
    eruptions, forest fires and pipeline accidents can be predicted and,
    in some cases, even prevented. Data from space is essential to solve
    these problems. After the tragic December 1988 earthquake in Armenia,
    Soviet experts proposed developing an early-warning system consisting
    of space and ground equipment. At the time, the necessary equipment
    for the space part of the system was planned to be placed on the Mir
    space station and eventually be transferred to unmanned satellites.
    The spacecraft were to have been put into orbit by converted ballistic
    missiles. However, the Soviet Union collapsed and the program, like
    many others, was terminated. Nonetheless, the long-duration Mir,
    Salyut-6 and Salyut-7 missions helped amass experience in this field.

    In short, the space stations served as a testing site for developing
    remote-sensing systems. Such experiments are now being conducted on
    Russia's segment of International Space Station (ISS) as part of the
    Uragan (Hurricane) program. The goal of the program is to develop
    specific aspects of a disaster warning system. The program is focused
    on digital photos of the earth and monitoring all natural disasters
    and accidents.

    The photographs taken from the ISS at an altitude of 380km cover
    an area of 10x15km, with a resolution of 5m and 20x30km, with a 10m
    resolution. Panoramic photos of the earth are also taken, however as
    the photographed area increases, the resolution decreases.

    High resolution photographs are the most popular. Therefore magnifying
    optical systems are often used for these observations to ensure a
    three-meter resolution of the terrestrial surface. The restrictions
    of the station's orbital inclination to the equatorial plane limit
    the area the high-quality photographs can be taken to between the
    latitudes of 56 degrees north to 56 degrees south. This creates large
    blank spots in the research because the Arctic and Antarctic regions,
    which significantly influence the climate, are unable to be seen.

    All experiments conducted on the Russian segment of the ISS must be
    coordinated with the United States and receive safety certificates.
    For example, a large amount of time has been spent trying to convince
    the Americans that taking photographs from the ISS's windows was
    safe. It was necessary to provide evidence that the crew members
    would not damage their eyes from solar radiation or from fragments
    of the window that might break off if a micro-meteorite hit it. These
    concerns were groundless because all observations are conducted when
    the window faces the earth.

    Indeed, photographs transmitted to earth in real time are the most
    valuable in predicting disasters. The United States' communications
    channels were initially used for this purpose, relaying all data
    via the TDRS geostationary satellite. The photographs that required
    immediate analysis were sent to earth without any problems. However,
    after September 11 when cosmonauts photographed the tragedy, this no
    longer became possible because NASA established a special department
    comprising scientists who analyze all photographs taken by cosmonauts
    before they are sent on American communications channels. This
    censorship was not included in any agreements. Consequently, that
    communications channel basically stopped providing real time data.
    Russian tracking stations receive some photos when the ISS passes
    over them, however, most of the photographs are flown back on Soyuz
    spacecraft every six months).

    There is another problem. After the space shuttle Columbia disaster,
    a full crew is not on the ISS, which has prevented research projects
    from being done. Work on the Uragan program is mostly done voluntarily
    on the weekends or during free time.

    What has been accomplished over the last several years? The first ISS
    mission did work on the Uragan program that mostly included taking
    pictures of hydrocarbon deposit in Kazakhstan on the northeastern
    coast of the Caspian Sea. Technologically imperfect oil production,
    oil spills and removal of subterranean waters, in the area led to
    the formation of 1-2km in diameter oil and water lakes. Some of the
    lakes were surrounded by mounds of earth to prevent subsequent spills.
    However, the photographs from space show that the some of the dams
    have already been breached and oil is leaking into the sea. An
    environmental disaster is quickly approaching and it will affect
    not only the Kazakh, but also the Russian parts of the Caspian Sea
    before politicians agree to demarcate the body of water. The Aral
    Sea is also being monitored from the ISS. Observations show that
    the sea will disappear in the near future because the Amudarya and
    Syrdarya rivers are being drained. As the Aral Sea dries up, a new
    problem has been created: salt clouds from the bed have reached as
    far as Tashkent, Bukhara and Samarkand. Photographs from the ISS
    have documented this. The clouds are now moving in the direction
    of the South Urals and the Volga region. Aside from damaging crops,
    these salt clouds are also unhealthy.

    The catastrophic floods that have been photographed in the North
    Caucasus, Central and Eastern Europe, China, India and Pakistan are
    evidence that disregard for nature and basic safety precautions can
    cause the greatest damage. Photographs from space provided important
    information about a avalanche that occurred in Karmadon gorge,
    North Ossetia, two years ago. Analysis of these photographs shows
    that a similar disaster could happen on the Pamir mountain range's
    Medvezhy (Bear) snowfield. Densely populated areas could be flooded
    if an avalanche flows into a nearby lake which would then cause the
    Pyandzh River to overflow.

    Detailed photographs from the Russian ISS segment can also be used
    to monitor and help with the construction of roads, pipelines and
    tunnels. The Moscow authorities and Ukraine have agreed to build a
    multi-purpose bridge and underwater pipeline to supply water from
    the Kuban River to the Crimea. Photographs from the ISS will make it
    possible to analyze the environmental implications of construction
    project and conduct an objective safety inspection.

    Overall, Russian methodologies enable space crews to monitor
    many natural processes and accidents. International co-production
    arrangements and the creation of an international disaster prediction
    system that would benefit humanity are feasible. The creation of
    such a system is particularly important because natural disasters and
    accidents that occur far away from each other are often more connected
    that than previously thought. An international space monitoring system
    will enable the optimal decision to be made for both regional and
    global problems.

    From: Emil Lazarian | Ararat NewsPress
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