Browse > Article
http://dx.doi.org/10.7582/GGE.2013.16.4.284

Reliability of Strain Estimation on Triangular Network and A Case Study; Deformation of Korea due to 2011 Tohoku Earthquake observed by GPS  

Na, Sung-Ho (Korea Space Geodetic Observation Center, Ajou University)
Chung, Tae Woong (Sejong University)
Choi, Byung-Kyu (Korea Astronomy and Space Science Institute)
Yoo, Sung-Moon (Korea Astronomy and Space Science Institute)
Publication Information
Geophysics and Geophysical Exploration / v.16, no.4, 2013 , pp. 284-292 More about this Journal
Abstract
A stable procedure is presented to attain most probable and unbiased estimate of principal strain, rotation, and dilatation for 2-dimensional geodetic data on triangular network. The proper network size should be chosen carefully, because the errors of these estimates of strain tensor and other associated observables grow inversely proportional to the area of station triangle. As a case study, the deformation observables for the GPS-monitored co-seismic displacement in Korea due to the 2011 Tohoku-Oki earthquake were attained accordingly.
Keywords
Deformation; Unbiased Estimate; Network Size; Stable Procedure; GPS; 2011 Tohoku Earthquake;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Baek, J., 2012, Geodetic Analysis on Crustal Deformation of the Korean Peninsula using GPS Observation, PhD dissertation, University of Science and Technology.
2 Gutenberg, B., and Richter, C. F., 1956, Earthquake Magnitude, Intensity, Energy, and Acceleration, Bulletin of Seismological Society of America, 46, 105-145.
3 Hamdy, E. A. 2004, Section of Strain Analysis from Network Deformation Data in Korean National GPS Network Report 2004.
4 Love, A. E. H., 1927, A Treatise on the Mathematical Theory of Elasticity, 4th edition, Dover Publications, New York.
5 Mikhail, E. M., and Ackermann, F., 1976, Observations and Least Squares, IEP-A Dun-Donnelley Publisher, New York.
6 Pietrantonio, G., and Riguzzi, F., 2004, Three-dimensional strain tensor estimation by GPS observations: methodological aspects and geophysical applications, Journal of Geodynamics, 38, 1-18.   DOI   ScienceOn
7 Schaffrin, B., 1999, Softly unbiased estimation, Part 1: The Gauss-Markov model, Linear Algebra and its Application, 289, 285-296.   DOI   ScienceOn
8 Uotila, U. A., 1986, Notes on Adjustment Computations Part 1, Dep. of Geodetic Sc. & Surveying, Ohio State University, Columbus, Ohio.