Science Service System

Summary of Proposal GEO0160

TitleApplication of multifrequency polarimetric SAR data to volcanic hazard monitoring
Investigator Moon, Wooil - University of Manitoba, Department of Environment, Earth, and Resources
Team Members
Mr. Park, Sang-Eun - Seoul National University, School of Earth and Environmental Sciences
Dr. Kim, Duk-jin - Seoul National University, School of Earth and Environmental Sciences
Mr. Park, Kyung-Ae - Seoul National University, Faculty of Education
SummaryThe objectives of this proposal include investigation and development of the new multi-frequency polarimetric SAR technology and their applications to monitoring geological land surfaces. We intend to study Cerro Caquella (Bolivia, S. America) and Baekdu-san or Changbaishan (China) volcanic area. Since Pastos Grandes is located altitude over 5000m above sea level and extremely arid, harsh environment prevents almost every kind of vegetation form the surface. This circumference is ideal condition to apply interferometric and polarimetric SAR investigations for geological applications. The geological characteristics of lava flows and volcanic deposit will be investigated with polarimetric TerraSAR X-band data. A new fully polarimetric SAR classification scheme based on the target decomposition theorem and simple surface scattering model will be developed for typical volcanic surfaces. In addition, multi-frequency polarimetric SAR observation can reveal significant improvement in characterizing volcanic area due to the relationship between geological features and surface roughness. A new backscattering model appropriate for sloping scattering surface and specific geological features will be elaborated for more quantitative analysis of TerraSAR X-band as well as RADARSAT-2 and ALOS PALSAR data for volcanic hazards. Furthermore, SAR polarimetry and polarimetric interferometric techniques using TerraSAR-X will provide us with the precise observation of volcano related deformations and its surroundings, as well as the lava flow history on the ground and accurate DEM associated with the specific volcanic hazards. In order to accomplish the successfully, time series of the experimental fully polarimetric mode as well as the partial polarimetric mode of TerraSAR-X are required over Cerro Caquella and Baekdu-san volcanic area. In addition, it is also important to acquire both ascending and descending observations due to the high topographic relief of the study area. This research will be supported by Natural Science and Engineering Research Council (NSERC) of Canada Discovery Grant, partially by the Korea Science and Engineering Foundation (KOSEF), and partially by State Seismological Bureau (Beijing) of China.

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DLR 2004-2016