Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2012, Vol. 9, No. 1, pp. 176-186
Comparative assessment of water quality in the Novosibirsk Reservoir based on limnological MERIS-models and high resolution data of Worldview-2
N. Kovalevskaya
, V. Kirillov
, T. Kirillova
, O. Lovtskaya
Institute of Water and Environmental Problems SB RAS, 656038 Barnaul, 1 Molodezhnaya str
An approach is developed on the example of the Novosibirsk reservoir, allowing remotely assess the water quality at two levels of spatial detail - at a level of a whole limnological object (using the MERIS-data and neural network models) and at a level of pilot areas (using ultra-high spatial resolution data of Worldview-2 and heuristic models). Three limnological models - eutrophic, boreal and coastal - are used to monitor phytoplankton distribution. Studies of 2008-2010 showed satisfactory fit of eutrophic MERIS-modeling and in situ data in the lake area (concentration range 1-10 [mg/m3]) and in shallow areas (10-35 [mg/m3]). Neural network MERIS-modeling confirmed the eutrophic status of the Novosibirsk reservoir. The eutrophic-model fit was a basis of seasonal dynamics research and the Worldview-2-assess of phytoplankton state in pilot area of relatively small size
Keywords: assessment of water quality, limnological algorithms, multispectral data, ultra-high spatial resolution
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