REALIZATION OF A DEDICATED SYNERGISTIC STUDY OF THE WHITE SEA BASED ON SPACEBORNE, SHIPBORNE AND ECOLOGICAL MODELING MEANS*

摘要

A new satellite-nonspecific algorithm for a simultaneous retrieval of content of such water quality proxies as phytoplankton chlorophyll, suspended minerals and dissolved organics has been developed and applied for the surveillance of spatial and temporal dynamic in the water quality and productivity in Onega Bay of the White Sea. Infrared and microwave data were used to investigate, respectively, the spatial and temporal distribution of water surface temperature and expressions of some hydrodynamic dynamic phenomena (river-related fronts, internal waves, etc). The spaceborne data were backed up by in situ data collected from a R/V as well as by hydrodynamic and chemical and biological numerical modeling. The model takes into account all major specific features of the White Sea, viz. water temperature and salinity horizontal and vertical variations, tidal motions, water exchange between the White and Barents Seas, river water and nutrients discharge, freezing, ice thickness and concentration dynamics. The collected remote sensing, in situ and numerical modeling data related to the Onega Bay hydrodynamics and water chemistry and biology proved to be mutually highly consistent concertedly enriching the portrait of this water body. As a result, the properly concatenated and conjointly analyzed multifaceted data constituted a veritably synergistic approach providing a considerably more adequate insight into a variety of in-water processes inherent in such semi-enclosed water bodies as the White Sea that experience a spectrum of impacts generated by multiple external forces.