PS-InSAR Time Series Analysis Using Sentinel-1A and ENVISAT-ASAR Data Stacks for Subsidence Estimation in Tehran

Document Type : علمی - پژوهشی

Authors

1 M.Sc. Student of Geomatics Engineering, K.N. Toosi University of Technology

2 . M.Sc. Student of Geomatics Engineering, K.N. Toosi University of Technology

3 Assistant Prof. of Geomatics Engineering, K.N. Toosi University of Technology

Abstract

Tehran is subject to high-rate subsidence because of extravagant water extraction. Groundwater extraction in Tehran plain due to agricultural or industrial activities has made it always be at risk and probable incoming damages. Large spatial baselines and temporal de-correlation have always limits the use of the conventional SAR interferometry for the purpose of subsidence monitoring in regions with high deformations velocity. Therefore, in this research, the InSAR technique based on persistent scatterer (PS) is carried out to analyze Tehran subsidence. The main objective of this paper is to determine the average annual subsidence rate of some urban regions in Tehran using a time series of Sentinel-1A (S-1A) and ENVISAT-ASAR data. PS pixels remain coherent in long spatio-temporal intervals and thus less affected by the lack of radar images correlation. However, inappropriate temporal distribution of data in this technique makes it difficult to derive the absolute value of the phase due to an integer ambiguity. Therefore, the use of S-1A dataset with short temporal baselines would help identify the phase ambiguity. Results prove considerable subsidence in southern part of the case study area for all-time series analysis which further proves the arrival of subsidence to urban parts. Results are cross-validated using the different image tracks and besides, absolute validation are employed on subsidence velocity maps based on precise leveling and GPS observations.

Keywords


  1. میرشاهی، ف.، ولدان‌زوج، م.ج.، 1392، اندازه‌گیری جابجایی سطح زمین بهکمک تصاویر سنجندة TerraSAR-X با استفاده از تکنیک تداخل‌سنجی راداری، پایان‌نامة کارشناسی ارشد، دانشگاه صنعتی خواجه نصیرالدین طوسی.
  2. Dehghani, M., 2015, Landslide Monitoring Using Hybrid Conventional and Persistent Scatterer Interferometry, Indian Society of Remote Sens., 44(4).
  3. Dehghani, M., Valadan Zoej, M.J., Entezam, I., Saatchi, S. & Shemshaki, A., 2010, Interferometric Measurements of Ground Surface Subsidence Induced by Overexploitation of Groundwater, Journal of Applied Remote Sens., 4(1).
  4. Dehghani, M., Valadan Zoej, M.J., Hooper, A., Hanssen, R., Entezam, I. & Saatchi, S., 2013, Hybrid Conventional and Persistent Scattrer SAR Interferometry for Land Subsidence Monitoring in the Tehran Basin, Iran, ISPRS Journal of Photogrammetry Remote Sensing, 79, PP. 157–170.
  5. Ferretti, A., Prati, C. & Rocca, F., 2001, Permanent Scatterer in SAR Interferometry, IEEE Ttansactions Geoscience and Remote Sensing, 39(1), PP. 8–20.
  6. Grandin, R., 2015, Interferometric Processing of SLC Sentinel-1 TOPS Data, FRINGE 2015 Frascati Rome Italy.
  7. Hanssen, R.F., 2001, Radar Interferometry: Data Interpretation and Error Analysis, Kluwer Academic Publisher, Dordrecht.
  8. Hooper, A., Segall, P. & Zebker, H.A., 2006, Persistent Scatterer Interferometric Synthetic Aperture Radar for Crustal Deformation Analysis, with Application to Volca´n Alcedo, Gala´pagos, Journal of Geophysical Research.
  9. Kampes, B., 2005, Displacement Parameter Estimation Using Permanent Scatterer Interferometry (Ph.D. Dissertation), Delft University of Technology, Delft, Netherlands.
  10. Mahmoudpour, M., Khamehchiyan, M., Nikudel, M. & Ghasemi, M., 2013, Characterization of Regional Land Subsidence Induced by Groundwater Withdrawals in Tehran, Iran, JGeope.
  11. Perissin, D. & Wang, T., 2012, Repeat-Pass SAR Interferometry with Partially Coherent Targets, IEEE Transaction on Geoscience and Remote Sensing, 50(1), PP. 1–10.
  12. Perissin, D., Wang, Z. & Wang, T., 2010, The SARPROZ InSAR Tool for Urban Subsidence/Manmade Structure Stability Monitoring in China, ISRSE Sydney Austuralia.
  13. Poland, J.F., 1984, Guidebook to Studies of Land Subsidence Due to Groundwater Withdrawal, United Nations Educational, Scientifc and Cultural Organization, Unecso.
  14. Prati, C., Rocca, F., Monti Guarnieri, A. & Pasquali, P., 1994, Interferometric Techniques and Applications (No. Contract N.3–7439). Ispra, Italy.
  15. Prats, P., Marotti, L., Wollstadt, S. & Scheiber, R., 2010, Investigations on TOPS Interferometry with TerraSAR-X, Geoscience and Remote Sensing Symposium IGARSS IEEE International.
  16. Sadeghi, Z., Valadan Zoej, M.J. & Dehghani, M., 2013, An Improved Persistent Scatterer Interferometry for Subsidence Monitoring in the Tehran Basin, IEEE Journal of Selected Topic Applied Earth Observations and Remote Sensensing,Vol. 63, PP. 1571–1577.
  17. Torres, R., Snoeij, P., Geudtner, D., Bibby, D., Davidson, M., Attema, E., Potin, P., Rommen, B., Floury, N., Brown, M., Trave, I., Deghaye, P., Duesmann, B., Rosich, B., Miranda, N., Bruno, C., L’abbate, M., Croci, R., Pietropaolo, A., Huchler, M. & Rostan, F., 2012, GMES Sentinel-1 Mission, Remote Sensing Environment, Vol. 120, PP. 9–24.
  18. Usai, S. & Hanssen, R., 1997, Long Time Scale InSAR by Means of High Coherence Features, European Space Agency-Publications-ESA SP 414, Vol. 1, PP. 225–228.
  19. Veci, L., 2015, TOPS Interferometry Tutorial, https://sentinel.esa.int/web/sentinel/toolboxes/sentinel-1/tutorials.