Consideration of impact factors on data acquisition for ocean radar with VHF band
スポンサーリンク
概要
- 論文の詳細を見る
An ocean radar with a VHF band is a useful tool for surveying coastal currents in a wide area. We have conducted a field observation of currents in Ariake Bay, the large inner sea located in the western part of Japan. Although the number of valid data acquired (hereafter, data acquisition) varies temporally and spatially, the mechanism of such variation is not yet well understood. Our aim in this study is to investigate the impact factor affecting data acquisition through field observations of current, salinity and wind in Ariake Bay. As a result, the data acquisition and the maximum measurement distance of the radar decreased owing to the decreases in salinity and wind speed. After receiving much rainfall, the data acquisition decreased rapidly in accordance with the decrease in surface salinity influenced by run-off from adjacent rivers and a flood control dike. Also, when wind speed became less than 2 m/s, the intensity of the signals received was not sufficient for the detection of current velocity. In conclusion, salinity and wind speed are important factors for steady-current observation using ocean radars.
- IEEEの論文
- 2008-09-00
IEEE | 論文
- Magnetic and Transport Properties of Nb/PdNi Bilayers
- Supersonic Ion Beam Driven by Permanent-Magnets-Induced Double Layer in an Expanding Plasma
- Surfactant Adsorption on Single-Crystal Silicon Surfaces in TMAH Solution: Orientation-Dependent Adsorption Detected by In Situ Infrared Spectroscopy
- Extended-range FMCW reflectometry using an optical loop with a frequency shifter
- Teachingless spray-painting of sculptured surface by an industrial robot