ISSN 2070-7401 (Print), ISSN 2411-0280 (Online)
Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa
CURRENT PROBLEMS IN REMOTE SENSING OF THE EARTH FROM SPACE

  

Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2017, Vol. 14, No. 3, pp. 305-314

Study of humidification of Zeya River watershed on the basis of meteorological and satellite observations

E.А. Cherenkova 1 , A.N. Zolotokrylin 1 , A.F. Mandych 1 
1 Institute of Geography RAS, Moscow, Россия
Accepted: 17.04.2017
DOI: 10.21046/2070-7401-2017-14-3-305-314
The regional peculiarities of precipitation in the Upper Zeya basin from May to September were investigated in this paper by use of meteorological data for the period of 1966–2013 and satellite data for the period of 2003–2016. It was shown that the humidification estimations made using the remote sensing data correctly reflect the regional characteristics of precipitation for relatively small areas with complex terrain structure.
Three homogeneous regions with quasi-uniform changes in precipitation account for 80.2% of the total precipitation variability from May to September in the period of 2003–2016. The revealed coherence of fluctuations of precipitation at the meteorological station Bomnak and runoff of Upper Zeya can be considered as a result of the weather station location in the region of quasi-uniform changes in precipitation where the precipitation variability explains the highest fraction (62.3%) of the total explained variability of rainfall. It was established that the extreme precipitation at the meteorological station Bomnak in the period from May to September at the beginning of 21-st century emerged after twenty years of pause. A statistically significant positive precipitation trend in 2001–2013 was identified according to the weather station data; the trend rate was 15.9 mm/year.
According to the remote sensing data, the accumulated moisture content in the Amur-Zeya plain in July 2013 was above the average. The most significant moisture content was found in the area between the Amur and Zeya Rivers. The results can be useful for prognostic assessment of regional flood development and its impact on the population.
Keywords: precipitation, humidification, soil moisture anomalies, remote sensing, Upper Zeya, Russian Far East, Aqua, TPMM, GRACE
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