1. Information Security of Automated Systems Department, Yuri Gagarin State Technical University of Saratov, Politekhnitcheskaya st. 77, Saratov 410054, Russia
2. Radioelectronics and Telecommunications Department, Yuri Gagarin State Technical University of Saratov, Politekhnitcheskaya st. 77, Saratov 410054, Russia
3. Center for Spatial Information Science, The University of Tokyo, 277-8568 Chiba, Japan
4. Potsdam Institute for Climate Impact Research (PIK), 14473 Potsdam, Germany
5. Institute for Complex Systems and Mathematical Biology, University of Aberdeen, Aberdeen, United Kingdom