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Research Progress of the Ocean Remote Sensing Information Extraction Technology under High Sea States
Pages: 16-20
Year: Issue:  3
Journal: Ocean Technology

Keyword:  high sea statessynthetic aperture radar(SAR)marine dynamic environmentinformation extractiondisaster monitoring;
Abstract: The satellite-borne synthetic aperture radar(SAR) has been widely used in monitoring marine dynamic environment parameters under moderate sea states, including wind fields, waves and flow fields. In recent years,SAR detection of typhoon wind fields, huge ocean surface waves and vector currents under high sea states has become a hot research point in China and overseas, and scientists have achieved a breakthrough in some key technologies. Crucial physical parameters, like ocean surface wind speed, wind direction, significant wave height,current velocity and flow direction, can be extracted under high sea states by utilizing SAR multi-polarization ocean observation and newly developed geophysical model functions. These parameters can be used in monitoring and warning marine disasters, and can provide accurate initial conditions and assimilation sources for oceanic and atmospheric numerical models to improve the model prediction accuracy, thus supplying adequate data support for global climate change research.
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