ISSN 2070-7401 (Print), ISSN 2411-0280 (Online)
Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa


Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2019, Vol. 16, No. 4, pp. 293-297

Retrieving surface temperature of tundra soil based on AMSR2 polarimetric brightness observations

K.V. Muzalevskiy 1 , Z. Ruzicka 1 
1 L.V. Kirensky Institute of Physics SB RAS, Krasnoyarsk, Russia
Accepted: 05.07.2019
DOI: 10.21046/2070-7401-2019-16-4-293-297
The paper proposes a semi-empirical method for remote sensing of surface temperature of tundra soil based on polarimetric data of the AMSR2 radiometer installed on GCOM-W1 satellite. Using a simple microwave emission model based on the Kirchhoff law and obtained for a dielectric-homogeneous isothermal half-space, the problem was reduced to retrieving of the effective temperature and reflectivity of observed surface from two brightness temperatures measured at the vertical and horizontal polarization at a frequency of 6.9 GHz. The uniqueness of the inverse problem was ensured by the established linear relation between the inverse values of the polarization index and the difference in reflectivity, measured at the horizontal and vertical polarizations. The calibration of two parameters of the linear regression was performed on two test sites in the North Slope of Alaska for 7 years from 2012 to 2018. As a result, it was shown that the recovered soil temperature values with a standard deviation of about 3.0 K and a correlation coefficient of 0.83 corresponded to the temperature of the soil surface, as measured by weather stations, on four test sites located in different landscape conditions of the Arctic tundra. Two of the four test sites were additional to the calibration ones.
Keywords: radiometry, brightness temperature, soil temperature, Arctic tundra
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  1. Basharinov A., Shutko A., Simulation studies of the SHF radiation characteristics of soils under moist conditions, NASA Technical Translation, 1975, TT F-16, p. 489.
  2. Bontemps S., Defourny P., Bogaert E. V., Arino O., Kalogirou V., Perez J. R., GLOBCOVER 2009: Products description and validation report, Version 2.2.2011, Université catholique de Louvain and European Space Agency, 2011, 53 p., available at:
  3. Hachem S., Duguay C. R., Allard M., Comparison of MODIS-derived land surface temperatures with ground surface and air temperature measurements in continuous permafrost terrain, The Cryosphere, 2012, Vol. 6, pp. 51–69.
  4. Jones L. A., Kimball J. S., McDonald K. C., Chan S. T. K., Njoku E. G., Oechel W. C., Satellite Microwave Remote Sensing of Boreal and Arctic Soil Temperatures From AMSR-E, IEEE Trans. Geoscience and Remote Sensing, 2007, Vol. 45, No. 7, pp. 2004–2018.
  5. Pulliainen J., Grandell J., Hallikainen M., Retrieval of surface temperature in boreal forest zone from SSM/I data, IEEE Trans. Geoscience and Remote Sensing, 1997, Vol. 35, pp. 1188–1200
  6. Su Y., Chen X., Su H., Liu L., Liao J., Digitizing the thermal and hydrological parameters of land surface in subtropical China using AMSR-E brightness temperatures, Intern. J. Digital Earth, 2017, Vol. 10, No. 7, pp. 687–700.