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


Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2020, Vol. 17, No. 5, pp. 91-100

The application of optical and radar data fusion in space monitoring of water objects

O.P. Arkhipkin 1 , G.N. Sagatdinova 1 
1 National centre for space research and technology, Almaty, Kazakhstan
Accepted: 07.10.2020
DOI: 10.21046/2070-7401-2020-17-5-91-100
The paper describes the possibilities of using fusion (synthesis) of optical and radar medium-resolution space images for the formation and analysis of water surfaces. Flooding zones along river beds and water surface of reservoirs are considered water objects. The formation of fusion images using radar and optical data allows increasing the information content of space monitoring of water objects and the quality of the obtained results. Methods for the formation of fusion images of optical and radar data both at the object level and at the point level are presented. In the first case, water surfaces are first separately formed from optical and radar data, and then their joint analysis is carried out. In the second case, first geometric binding of optical and radar data to each other is carried out, then methods of data fusion are selected, then synthesis of these data and analysis of fusion results are carried out. The methods of fusion of optical and radar data are illustrated by the example of the passage of flood waters in 2017 on the Ishim River in the area of the village of Gastello, Akmola Region, as well as the dynamics of filling in 2018 the Koksaray counter-regulator and the Chardarin reservoir located in the Turkestan region of Kazakhstan, and the Sergeyevsky reservoir of the North Kazakhstan Region.
Keywords: space monitoring, flood, water surfaces, flood zones, radar data, optical data, fusion
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