title: [Design and experimentation of marine optical buoy].
abstract: Marine optical buoy is of important value in terms of calibration and validation of ocean color remote sensing, scientific observation, coastal environment monitoring, etc. A marine optical buoy system was designed which consists of a main and a slave buoy. The system can measure the distribution of irradiance and radiance over the sea surface, in the layer near sea surface and in the euphotic zone synchronously, during which some other parameters are also acquired such as spectral absorption and scattering coefficients of the water column, the velocity and direction of the wind, and so on. The buoy was positioned by GPS. The low-power integrated PC104 computer was used as the control core to collect data automatically. The data and commands were real-timely transmitted by CDMA/GPRS wireless networks or by the maritime satellite. The coastal marine experimentation demonstrated that the buoy has small pitch and roll rates in high sea state conditions and thus can meet the needs of underwater radiometric measurements, the data collection and remote transmission are reliable, and the auto-operated anti-biofouling devices can ensure that the optical sensors work effectively for a period of several months.
authors.affiliation: LED Laboratory, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China. wuli@scsio.ac.cn
authors.forename: Yue-Zhong
authors.initials: YZ
authors.lastname: Yang
authors.forename: Zhao-Hua
authors.initials: ZH
authors.lastname: Sun
authors.forename: Wen-Xi
authors.initials: WX
authors.lastname: Cao
authors.forename: Cai
authors.initials: C
authors.lastname: Li
authors.forename: Jun
authors.initials: J
authors.lastname: Zhao
authors.forename: Wen
authors.initials: W
authors.lastname: Zhou
authors.forename: Gui-Xin
authors.initials: GX
authors.lastname: Lu
authors.forename: Tian-Cun
authors.initials: TC
authors.lastname: Ke
authors.forename: Chao-Ying
authors.initials: CY
authors.lastname: Guo