Information-and-measuring drifter system for the monitoring of currents in the coastal zone of the sea |
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| Authors: | E G Lunev V A Ivanov A G Kirichenko E M Lemeshko S V Motyzhev |
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| Institution: | (1) Scripps Institution of Oceanography, University of California-San Diego, 9500 Gilman Drive, 92093-0230 La Jolla, CA, USA;(2) Applied Physics Laboratory, University of Washington, 1013 NE 40th Street, 98105-6698 Seattle, WA, USA |
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| Abstract: | The autonomous drifting buoys equipped with satellite link turn into one of the most important components of the global system
of operative observations of the ocean and the surface layer of the atmosphere. However, on the regional level, the problem
of analysis of the surface circulation of waters in the coastal zone and sea straits remains quite urgent because the available
drifters cannot be used in this case due to their sizes and long intervals between measurements. We present the results of
development and testing of a new drifter system aimed at measuring currents. The system is based on the use of buoys operating
at depths less than 1 m. To improve the space-and-time resolution of measurements, the buoys are equipped with receivers of
the global positioning system (GPS) and GSM modems for the data transfer via cellular communication networks. The drifter system guarantees the possibility of determination
of the coordinates of buoys with a resolution of 3 min in time and 14 m in space. We describe the specific features of the
design of the proposed information-and-measuring drifter system and present the first results of application of new buoys
called “minidrifters” for the pilot monitoring of currents in the Kerch Strait. |
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