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Geoinformation System of the Tungus Accident Site

#3825


Creation of a Retrospective Geoinformational System of the Tungus Event Area From 1908 till Present

Tech Area / Field

  • INF-OTH/Other/Information and Communications

Status
3 Approved without Funding

Registration date
21.09.2007

Leading Institute
Research Institute of Aviation Systems, Russia, Moscow

Supporting institutes

  • IZMIRAN, Russia, Moscow reg., Troitsk\nSiberian Branch of RAS / V.N. Sukachev Institute of Forest, Russia, Krasnoyarsk reg., Krasnoyarsk\nFederal Institution «State nature reserve «Tungussky», Russia, Krasnoyarsk reg., Vanavara

Collaborators

  • University of Bologna/Department of Physics, Italy, Bologna\nFraunhofter Institut Fabrikbetrieb und -automatisierung, Germany, Magdeburg\nCarnegie Institution of Washington, USA, DC, Washington\nUniversity of Thessaloniki / School of Rural & Surveying Engineering, Greece, Thessaloniki

Project summary

The problem of Tungus meteorite belongs to the number of the most mysterious and complex problems of modern nature. The Tungus event is unique since it was the first in mankind memory case of the largest cosmogeneous disaster identified by many scientists as an explosion of a space body. According to modern opinion, the energy of the explosion was from 15 to 40 megatons of trinitrotoluol equivalent.

During many years there have been performed various investigations of local areas of the Tungus event territory.

Aim of the project:

This Project is aimed to create a model of a multilevel GIS using results acquired in the term of the Project and results of previous expeditions as well as results acquired with the help of methods of airborne and ground ecological electronic monitoring of large areas, providing for collection, storage, interfaced processing and distribution of coordinated data concerning the place of the Tungus explosion.

To form the database within the Project it is planned to perform both airborne and ground monitoring of specific parts and epicenter of the meteorite fall, to perform comparative multispectral analysis of data of the planned expedition and data received in 1938 and 1999 expeditions and high-resolution space photographs. A 3D digital terrain model based on airborne and ground monitoring data, referencing of objects by additional navigation equipment (based on GPS) will allow to analyze the space-time dynamics of the Tungus event area. Biometrical and taxational features of forest stand in the disaster area (index of projective foliage cover, species composition, dynamics of growth and yield power of forest stand) will be analyzed.

The project will allow to solve following tasks:

  • to work out methodical basis for geocosmic events investigation using space-time incapsulation of different data of the event and computative-theoretical methods of their analysis by the example of the Tungus phenomenon study;
  • to perform a technological work for the creation of experimental means for the automation of investigations of geocosmic events like the Tungus phenomenon;
  • comprehensive investigations of the Cheko lake and other similar formations (bottom relief, ground composition, interrelations with other objects);
  • to carry out the analysis of the dynamics and anomalies of annual (radial) increment of trees, analysis of minor constituents of growth layers (with resolution up to one year) and to find out anomalies of these constituents;
  • to perform search and investigation of circular structures and local depressions of the disaster area and nearby parts in order to reveal their attitude to the 1908 event;
  • to survey the so-called “east forest fall” area for the definition the tree fall vector in order to reveal its attitude to the 1908 event;
  • to survey the 10-kilometer area of the light spot in the disaster center, found out by remote sensing from space;
  • to reveal places of catastrophic change of terrain after the 1908 explosion;
  • to acquire interrelations between damages of the tree stand caused by the Tungus event and caused by it dynamics of forest territories based on 3D model of the terrain with oreography (azimuth, elevation, cutslope ratio);
  • to estimate the area and intensity of fires caused by the Tungus event; to perform the analysis of the temporal dynamics of forest fires occurrence in the place of the disaster;
  • to perform a comparative analysis of received results and those of previous investigations (1927-1999);
  • to estimate the productivity of the method of space-time incapsulation of different data and methods of their analysis in order to study the Tungus phenomenon and similar geocosmic events based on the simulation of elements of retrospective GIS, model of databank of the Tungus events area (sets of digital maps, 3D digital terrain model including Cheko lake, maps of forest canopy density, maps of distribution of canopy biochemical components; data on the dynamics and anomalies of the annual increment of trees, radar and electro-optical images, index of the projective foliage cover).

Work for the project will attract specialists in active and passive remote sensing of the Earth both in optical and radio ranges, in GIS technologies, in biospheric functions of the ground cover.

Members of the project:

  • FGUP “GosNIIAS” (Russian Federation) is responsible for total leadership of the project, management and execution of airborne, ground and underwater monitoring, complex on-ground processing, creation of a computerized retrospective GIS.
  • V. N. Sukachyov Institute of Forest SO RAS (Russian Federation) is responsible for ground investigations, creation of database of space-time dynamics of leaf canopy and forest and marshy complex characteristics of GIS of the Tungus event area.
  • IZMIRAN (Russian Federation) is responsible for execution of ground monitoring and creation of database of the subsurface soil structure of GIS of the Tungus event area.
  • GU GPZ “Tungussky” (Russian Federation) is responsible for the supervision and support of on-ground investigations in the Tungus event area.
  • Foreign collaborator: Bologna University, Italy.

The Project answers goals of the International Scientific and Technical Center since it allows to unite efforts of scientists and engineers engaged in various scientific and industrial branches including defense topics, to use exclusive scientific and technical potential of the defense industry in such an important area as long-term validation of after-effects of different space bodies collision with the Earth.

Estimated volume of works for the Project makes about 14184 person-days.

Activities of participating organizations will be coordinated by joint working groups.

Foreign collaborators are supposed to take part in the data exchange within the Project, in discussions of technical reports, to render assistance in attending international conferences and in organization of joint seminars and consultations.

Technical approaches and methods will use modern devices and analytical methods of remote sensing, methods of underseas explorations, methods of investigation the biospherical functions of forests, advanced technologies of GIS development and creation.

In case of finding fragments of a space body they will be subject to elementary and mineral analysis in order to know the nature of the Tungus meteorite.

Simultaneously there will be performed an estimation of the forest biome restoration 100 years after the disaster with the aim to forecast the after-effects of space catastrophes for the biosphere of the Earth.

Results of complex investigations in the Project, their integration with the results of previous investigations allow to make a conclusion on the most probable reason of the Tungus event; and to offer a scientifically grounded methodology of similar event estimation and forecasting of their influence onto processes on the Earth.


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