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Modeling of Fast Ground Subsidence Observed in Southern Saskatchewan (Canada) During 2008–2011 : Volume 14, Issue 2 (14/02/2014)

By Samsonov, S. V.

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Book Id: WPLBN0004018493
Format Type: PDF Article :
File Size: Pages 11
Reproduction Date: 2015

Title: Modeling of Fast Ground Subsidence Observed in Southern Saskatchewan (Canada) During 2008–2011 : Volume 14, Issue 2 (14/02/2014)  
Author: Samsonov, S. V.
Volume: Vol. 14, Issue 2
Language: English
Subject: Science, Natural, Hazards
Collections: Periodicals: Journal and Magazine Collection, Copernicus GmbH
Historic
Publication Date:
2014
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

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González, P. J., D'oreye, N., Tiampo, K. F., & Samsonov, S. V. (2014). Modeling of Fast Ground Subsidence Observed in Southern Saskatchewan (Canada) During 2008–2011 : Volume 14, Issue 2 (14/02/2014). Retrieved from http://worldpubliclibrary.org/


Description
Description: Natural Resources Canada, 588 Booth Street, Ottawa, ON K1A0Y7, Canada. Fast ground subsidence in southern Saskatchewan (Canada) between the city of Saskatoon and Rice Lake was observed with the RADARSAT-2 interferometric synthetic aperture radar (InSAR) during 2008–2011. We collected 23 ascending Multi-Look Fine 3 Far (MF3F) and 15 descending Standard 3 (S3) RADARSAT-2 images and performed time-series analysis utilizing Small Baseline Subset (SBAS) and Multidimensional SBAS (MSBAS) methodologies. We observed two well-defined circular regions located a few kilometers apart and subsiding with the nearly constant rate of about 10 cm yr-1. MSBAS decomposition revealed the presence of both vertical and horizontal ground displacements. For further analysis we selected two highly coherent interferograms spanning from November to December 2009 until April 2010 thanks to particularly favorable ground conditions that displayed superior coherence. We performed modeling and inversion assuming spherical and sill source models in order to determine the source location, depth and strength. The sill source model produced the smallest residual of 0.7 cm yr-1 applied to ascending interferograms and 0.9 cm yr-1 applied to descending interferograms. A residual of 1.0 cm yr-1 was achieved with the sill model when both ascending and descending interferograms were used. This model suggested sources located at 1.3 and 1.2 km depth with radius of 1.0 and 1.3 km for eastern and western areas, respectively. The spherical model suggested slightly shallower sources located at 0.9 and 0.8 km. We could not precisely identify the cause of this deformation, but the observed subsidence rate and source depth suggest mining-related origin. Topographic changes produced by this subsidence rate over a long time may produce shallow groundwater redistribution and flooding of agricultural lands.

Summary
Modeling of fast ground subsidence observed in southern Saskatchewan (Canada) during 2008–2011

Excerpt
Amelung, F., Jonsson, S., Zebker, H., and Segall, P.: Widespread uplift and trapdoor faulting on Galapagos volcanoes observed with radar interferometry, Nature, 407, 993–996, 2000.; Bawden, G., Thatcher, W., Stein, R., Hudnut, K., and Peltzer, G.: Tectonic contraction across Los Angeles after removal of groundwater pumping effects, Nature, 412, 812–815, doi:10.1038/35090558, 2001.; Beavan, J., Fielding, E., Motagh, M., Samsonov, S., and Donnelly, N.: Fault location and slip distribution of the 22 February 2011 Mw 6.2 Christchurch, New Zealand, earthquake from geodetic data, Seismol. Res. Lett., 82, 789–799, 2011.; Beavan, R. J., Samsonov, S., Denys, P., Sutherland, R., Palmer, N. G., and Denham, M.: Oblique slip on the Puysegur subduction interface in the 2009 July Mw 7.8 Dusky Sound earthquake from GPS and InSAR observations: implications for the tectonics of southwestern New Zealand, Geophys. J. Int., 183, 1265–1286, 2010.; Biggs, J., Lu, Z., Fournier, T., and Freymueller, J.: Magma flux at Okmok Volcano, Alaska from a joint inversion of continuous GPS, campaign GPS and InSAR, J. Geophys. Res., 115, B12401, doi:10.1029/2010JB007577, 2010.; Chen, F., Lin, H., Li, Z., Chen, Q., and Zhou, J.: Interaction between permafrost and infrastructure along the Qinghai-Tibet Railway detected via jointly analysis of C- and L-band small baseline SAR interferometry, Remote Sens. Environ., 123, 532–540, 2012.; Cigna, F., Del Ventisette, C., Liguori, V., and Casagli, N.: Advanced radar-interpretation of InSAR time series for mapping and characterization of geological processes, Nat. Hazards Earth Syst. Sci., 11, 865–881, doi:10.5194/nhess-11-865-2011, 2011.; Costantini, M.: A novel phase unwrapping method based on network programming, IEEE T. Geosci. Remote, 36, 813–821, 1998.; Fialko, Y. and Pearse, J.: Sombrero uplift above the Altiplano-Puna magma body: evidence of a ballooning mid-crustal diapir, Science, 338, 250–252, 2012.; Fialko, Y., Khazan, Y., and Simons, M.: Deformation due to a pressurized horizontal circular crack in an elastic half-space, with applications to volcano geodesy, Geophys. J. Int., 146, 181–190, 2001.; Geertsma, J.: Land subsidence above compacting oil and gas reservoirs, J. Petrol. Technol., 25, 734–744, 1973.; GeoBase, available at: http://www.geobase.ca/, last access: 10 February 2014, 2013.; Goldstein, R. and Werner, C.: Radar interferogram filtering for geophysical applications, Geophys. Res. Lett., 25, 4035–4038, 1998.; González, P. and Fernández, J.: Drought-driven transient aquifer compaction imaged using multitemporal satellite radar interferometry, Geology, 39, 551–554, 2011.; González, P. J., Tiampo, K. F., Camacho, A. G., and Fernández, J.: Shallow flank deformation at Cumbre Vieja volcano (Canary Islands): implications on the stability of steep-sided volcano flanks at oceanic islands, Earth Planet. Sc. Lett., 297, 545–557, 2010.; González, P. J., Samsonov, S., Pepe, S., Tiampo, K., Tizzani, P., Casu, F., Fernández, J., Camacho, A., and Sansosti, E.: Magma storage and migration associated with the 2011–2012 El Hierro eruption: implications for crustal magmatic systems at oceanic island volcanoes, J. Geophys. Res., 118, 4361–4377, doi:10.1002/jgrb.50289, 2013.; Gourmelen, N., Amelung, F., Casu, F., Manzo, M., and Lanari, R.: Mining-related ground deformation in Crescent Valley, Nevada: Implications for sparse Gps networks, Geophys. Res. Lett., 34, L09309, doi:10.1029/2007GL029427, 2007.; Hofmann-Wellenhof, B., Lichtenegger, H., and Collins, J.: GPS Theory and Practice, Springer-Verlag, Wien, 2001.; Hooper, A., Bekaert, D., Spaans, K., and Ar\ikan, M.:

 

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