Satellite and Ground-Based Geophysical Observations
Complex Ground Based Geophysical Observations Coordinated with French Satellite DEMETER Investigations
Tech Area / Field
- ENV-SEM/Seismic Monitoring/Environment
- OBS-NAT/Natural Resources and Earth Sciences/Other Basic Sciences
3 Approved without Funding
Institute of Physics of the Earth, Russia, Moscow
- Institute of the Geophysical Services, Russia, Kaluga reg., Obninsk
- Universita Degli Studi di Bari, Italy, Bari\nUniversity of Maryland / Department of Physics / East-West Space Science Center, USA, MD, College Park\nCNRS / Centre d'etude des Environnements Terrestre et Planetaires, France, Sant-Maur\nUniversity of Electro-Communications / Department of Electronic Engineering, Japan, Tokyo\nInstitute of Experimental Physics, Slovakia, Kosice\nCNRS / Laboratoire de Physique et Chemie de L'Environnement, France, Orleans\nTokai University / Earthquake Prediction Research Center, Japan, Tokai\nChiba University / Graduate School of Science, Japan, Chiba
Project summaryThe proposed project is intended for the investigation of short-term transient processes in the global lithosphere-atmosphere-ionosphere coupled system using the simultaneous satellite and ground-based observations. The proposed research is a continuation of ISTC project 2990, which is based on analysis of the data obtained from French satellite DEMETER launched in June 2004 onto the orbit by CNES and the data obtained in two areas of Russia: in Kamchatka region, including special complex observatory Karymshino with adjacent observation sites Kariaka and Barkhatnaya, and in Karelia (Kola peninsula), including geophysical station Lekhta. The geophysical processes in lithosphere-ionosphere medium that are connected with seismic activity and volcano eruptions are investigated above all. Besides the study of Earth electromagnetic environment are carried out. An essential part of the research work has been made within the project 2990. This work includes: a) Efficient methods of the earthquake precursors observation at the ground were selected and proved on reliability (registration of acoustic emission and ULF electromagnetic foreshocks, hydro-geochemistry anomalies, ULF-ELF emission from atmosphere and VLF signal perturbations); b) New method of global diagnostics of seismicity using simultaneous DEMETER satellite and ground VLF signal observations was suggested and checked over Japan and Kamchatka regions; c) New effect in ULF/ELF emission from troposphere, which allows to produce forecasting of the earthquake time and epicenter direction finding, was discovered and proved on probability gain during 3-years regular observation in Karymshino station; d) Special multi-parameter database of DEMETER data combined with similar database of ground observation during 3 years was collected with exclusion of artificial interferences and equipment malfunctions; e) Two observation sites near Karymshino station (Kariaka and Barkhatnaya) were organized and appropriated ULF/ELF equipment was tested and prepared for regular exploitation; f) General theory of lithosphere-atmosphere-ionosphere coupling was developed. The results obtained in the project 2990 were published in more than 20 papers in refereed international journals and reported in more than 10 international meetings (including EGU, IUGG, URSI symposia and DEMETER meetings). However, there is a necessity to continue the research in order to finalize the scientific base and lead it to practical applications. The work plan of the project 2990 continuation foresees:
- Extension of special satellite/ground database, taking into account that operation of DEMETER satellite is continued at least up to end of 2008;
- Beginning of regular operation of ULF/ELF sites Barkhatnaya and Kariaka for short-term finding the time, position and magnitude of impending earthquakes;
- Organization of operative regular 1-hour water flux recordings in Karymshino observatory (at present sampling rate of the Kamchatka’s hydro-geochemistry network is 3 days that is not sufficient for comparative analysis with other methods);
- Conducting of simultaneous satellite-ground VLF signal monitoring of seismogenic ionosphere perturbations over Europe (in collaboration with Italian group by Prof. P.F. Biagi) and USA (in collaboration with group by Prof. U. Inan) in addition to monitoring over Japan and Kamchatka;.
- Synchronous satellite-ground observation of ULF/ELF pulses for revelation of the source distribution in the atmosphere;
- Analysis of non-linear wave-wave interaction from correlation of VLF signal spectrum broadening, ionospheric turbulence and electron density perturbations in the upper ionosphere in association with seismicity, volcano eruptions and magnetic storms;
- Development of theoretical models for precursory phenomena and earthquake origin as whole;
- Development of practical recommendations for short-term earthquake forecast.
The most important part of the planned work is performing the trial short-term forecasting of large-magnitude earthquakes in the Kamchatka region.
Specialists of the Institute of Physics of the Earth (IPE), Russian Academy of Sciences, the Geophysical Survey of Russian Academy of Sciences (IGS) and the GEOSCAN during many years conduct the investigations of the Earth seismicity and related geophysical phenomena, including the observations at Karimshino and Lekhta observatories. Besides some specialists of the Institute of Physics of the Earth and GEOSCAN have the wide experience in the processing and analysis of the satellite data.
Significant experience obtained during the ISTC Projects 1121 and 2990 realization will be used for the development and modernization of scientific devices and software.
The International Science and Technology Center (ISTC) is an intergovernmental organization connecting scientists from Kazakhstan, Armenia, Tajikistan, Kyrgyzstan, and Georgia with their peers and research organizations in the EU, Japan, Republic of Korea, Norway and the United States.
ISTC facilitates international science projects and assists the global scientific and business community to source and engage with CIS and Georgian institutes that develop or possess an excellence of scientific know-how.