Earth’s Cryosphere, 2011, Vol. XV, No. 2, p. 14-20

COMPARISON OF THE SOIL TEMPERATURE PROFILES BASED ON WEST-SIBERIAN STATION NETWORK MEASUREMENTS AND THE DATA OF THE NCEP/NCAR REANALYSIS

S.Yu. Zolotov, I.I. Ippolitov, S.V. Loginov, I.O. Luchitskaya*, N.I. Belaya*

Institute of Monitoring of Climatic and Ecological Systems, SB RAS, 634021, Tomsk, Akademichesky pr., 10/3, Russia, zolotov@asu.tusur.ru
* Siberian Regional Research Hydrometeorological Institute, 630099, Novosibirsk, Sovetskaya str., 30, Russia

Comparison of the soil temperature profiles based on West-Siberian station network measurements and the data of the NCEP/NCAR reanalysis has been made. The data of the soil temperature measurements levels were taken at depths of 0, 20, 40, 80, 160, 320 cm and the data of the reanalysis layers were taken at depths of 0–10, 10–200, 300 cm. The analysis has demonstrated that the data of the reanalysis during the winter time period yield the overestimated values, and in the summer time period, underestimated values for the 0–10 cm layer at high correlation coefficients. The data of the reanalysis are always underestimated for the 10–200 cm layer. For these reasons, the correction function between the data of the reanalysis and the data of measurements has been defined.

Key words: Soil temperature, data of reanalysis, station network measurements.

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