1. Pacific Geographical Institute, Far Eastern Branch of the Russian Academy of Sciences, Radio St., 7, 690041 Vladivostok, Russia
2. Institute of Water and Ecological Problems, Far Eastern Branch of the Russian Academy of Sciences, Dikopoltsev St., 56, 680000 Khabarovsk, Russia
3. Institute of Earth Sciences, St. Petersburg State University, Universitetskaya Nab., 7/9, 199034 St. Petersburg, Russia