"JOURNAL OF RADIO ELECTRONICS" (Zhurnal Radioelektroniki)  ISSN 1684-1719, N 1, 2017

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On a possibility of detecting of thawing soil depth in permafrost zones by GNSS signals

 

M. G. Dembelov1, Yu. B. Bashkuev1, V. B. Khaptanov1, A. M. Dembelova1, A. V. Loukhnev2

1 Institute of physical material sciences of SB of RAS

2 Institute of the Earth’s crust of SB of RAS

 

The paper is received on November 4, 2016

 

Abstract. A comparative analysis of direct measurements of the depth of thawing soils of the permafrost zone, results of ground radio wave soundings and GPS measurements has shown the fundamental possibility of detecting the depth of thawing permafrost soils using GNSS radio signals. Rows of long-term observations of total zenith troposphere delay (ZTD), its “wet” component (ZWD) and troposphere moisture content (IWV, PW) over the observation point TIXI were considered. A linear regression between surface air temperature (T) and the “weighted mean" temperature of troposphere (Tm) was found in order to measure more exactly the moisture content of the troposphere for Tiksi in 2015. Inter-annual variations of the average “wet” component in the warm season of tropospheric delay and the moisture content level above the point of measurement TIXI were calculated. A high coefficient of correlation between the depth of thawing soils of the Arctic coast in the period since 2005 to 2015 and data on ZWD and PW was established. Parameters of the geoelectric section and the depth of the permafrost thawing of the Arctic coast in the area of Tiksi according to the interpretation of radio impedance and georadar soundings in permafrost zone were detected.

Key words: permafrost, radio impedance soundings, GPR, GPS, total zenith tropospheric delay, meteorological data.

References

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Reference to this paper:

On a possibility of detecting of thawing soil depth in permafrost zones by GNSS signals. M.G.Dembelov, Yu.B.Bashkuev, V.B.Khaptanov, A.M.Dembelova, A.V.Loukhnev. Zhurnal Radioelektroniki - Journal of Radio Electronics, 2017, No. 1. Available at http://jre.cplire.ru/jre/jan17/8/text.pdf. (In Russian)