Complex Satellite Monitoring of Coastal Water Areas
نویسنده
چکیده
Possibilities of applying satellite means for monitoring of sea and ocean water areas are considered. Significant parameters of water environment registered by modern advanced space means and problems than can be solved using these means are analyzed. Some results obtained during complex satellite monitoring of anthropogenic influences on Mamala Bay water area (Honolulu, Hawaii) in 2002-2004 are given in this paper. Based on analysis results for optical (panchromatic, multispectral, hyperspectral) and radar satellite image processing, manifestations of anthropogenic influence on water environment were studied. These manifestations are related to changes in hydrodynamic parameters, hydrooptical and hydro-biological characteristics of nearsurface ocean layer. Effects of generation of “quasimonochromatic” spectral harmonics of sea waves (Λ~10...150 m) due to ultrahigh frequency internal wave manifestations caused by a deep outfall are detected. Parameters of harmonics revealed in satellite imagery coincide with parameters of internal waves obtained from the results of sea truth measurements. Based on the results of satellite monitoring we have worked out recommendations on nature-conservative measures in the studied recreational area that can be realized also for other coastal water areas.
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