Abstract
The soil compaction rate in a reclaimed land has been estimated by using the Japanese Earth Resources Satellite 1 (JERS-1) synthetic aperture radar (SAR) two-pass differential interferometry (DInSAR) and magnetic probe extensometer (an accuracy of ±1 mm) from 42 ground stations. Twelve JERS-1 SAR interferometric pairs were acquired in the study area. We applied a soil compaction prediction model based on a hyperbolic method using the ground truth data and the DInSAR measurements. The hyperbolic model fitted well to the ground measurements with an rms error of 1.65 cm. The rms error of the model driven by DInSAR measurements was 2.24 cm. The two model results agreed well, showing a difference of 8.1% (12.9 cm) in permanent settlement that is defined as the amount of vertical subsidence as time goes to infinity. A two-dimensional (2-D) subsidence map was constructed from five qualified pairs. The correlation coefficient R between the radar measurements and the ground truth data was 0.87 with an rms error of 1.44 cm. The results demonstrate that the L-band DInSAR combined with a prediction model is useful for geotechnical applications.
| Original language | English |
|---|---|
| Pages (from-to) | 2683-2686 |
| Number of pages | 4 |
| Journal | IEEE Transactions on Geoscience and Remote Sensing |
| Volume | 41 |
| Issue number | 11 PART II |
| DOIs | |
| Publication status | Published - 2003 Nov |
Bibliographical note
Funding Information:Manuscript received February 28, 2003; revised July 7, 2003. This work was supported in part by the Ministry of Science and Technology under the Space Development Program. The authors are with the Department of Earth System Sciences, Yonsei University, Seoul 120-749, Korea (e-mail: jswon@yonsei.ac.kr). Digital Object Identifier 10.1109/TGRS.2003.817185
All Science Journal Classification (ASJC) codes
- Electrical and Electronic Engineering
- Earth and Planetary Sciences(all)