Академическое издательство «Гео»

Frost heave, repeated geodetic leveling, synthetic aperture radar interferometry



KRIOSFERA ZEMLI, 2013, Vol. XVII, № 1, p. 80-87

Estimation of seasonal deformation of marshy soil by radar interferometry and geodetic leveling techniques

T.N. Chymitdorzhiev1, P.N. Dagurov1, A.I. Zakharov2, G.I. Tatkov3, M.E. Bykov1,
A.V. Dmitriev1, N.D. Baldanov4, E.A. Muhorin4, E.U. Milheev5

1 Institute of Physical Material Science, SB RAS, 670047, Ulan-Ude, Sakhyanovoy str., 6, Russia; tchimit@gmail.com
2 Institute of Radioengineering and Electronics, RAS, 141190, Fryazino, Moscow region, Vvedensky sq., 1, Russia
3 Geological Institute, SB RAS, 670047, Ulan-Ude, Sakhyanovoy str., 6a, Russia
4 Buryat State Academy of Agriculture, 670024, Ulan-Ude, Pushkin str., 8, Russia
5 Institute of General and Experimental Biology, SB RAS, 670047, Ulan-Ude, Sakhyanovoy str., 6, Russia

On the example of the Ust-Selenga test polygon the possibility of satellite data of differential radar interferometry in L-band (23 cm wavelength) for estimation of the amplitude of vertical ground movements due to seasonal strains has been demonstrated. Under the assumption that the values of the seasonal deformation in different years are comparable and are within the error of geodetic leveling, the results of the seasonal radar interferometric measurements for 2006–2010 have been compared with survey data for 2011. It has been revealed that during the winter months the difference between the interferometric and geodetic measurements is less than 1 cm, and in the summer (when the moisture content of the upper layer of soil changes) this discrepancy is 2.0–2.7 cm. The conclusion has been made about the necessity to consider the moisture content and its profile in the summer time or the selection of winter radar interferometry data.

Frost heave, repeated geodetic leveling, synthetic aperture radar interferometry
главная

www.izdatgeo.ru