锚泊光学浮标浮体设计及近海试验

doi:10.11978/j.issn.1009-5470.2010.02.001

热带海洋学报 ›› 2010, Vol. 29 ›› Issue (2): 1-6.doi: 10.11978/j.issn.1009-5470.2010.02.001cstr: 32234.14.j.issn.1009-5470.2010.02.001

• 海洋光学 • 下一篇

锚泊光学浮标浮体设计及近海试验

曹文熙1, 杨跃忠1, 张敬祥1, 柯天存1, 卢桂新1, 李彩1, 郭超英1, 孙兆华1,2

1. 中国科学院南海海洋研究所热带海洋环境动力学重点实验室, 广东广州 510301; 2. 中国科学院研究生院, 北京 100039

收稿日期:2009-05-06 修回日期:2009-11-08 出版日期:2010-03-23 发布日期:2010-03-23
作者简介:曹文熙(1963—), 男, 湖南省郴州市人, 研究员, 博士, 主要从事海洋光学研究。
基金资助:
国家863计划重大项目(2006AA09A310); 中国科学院重要方向性项目及装备项目(KZCW2-YW-215)

Design and test of moored optical buoy

CAO Wen-xi1, YANG Yue-zhong1, ZHANG Jing-xiang1, KE Tian-cun1, LU Gui-xin1, LI Cai1, GUO Chao-ying1, SUN Zhao-hua1,2

1. LED, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou 510301, China; 2. Graduate Univ. of Chinese Academy of Sciences, Beijing 100039, China

Received:2009-05-06 Revised:2009-11-08 Online:2010-03-23 Published:2010-03-23

摘要/Abstract

摘要：

文中设计的光学浮标采用了柱状浮体, 提出了自由旋转的马鞍链结构。理论计算结果表明, 该光学浮标一是初稳性高度大, 二是光学浮标重心位于浮心之下, 浮标的摇摆角较小, 抗倾斜及倾覆能力强。海上试验结果表明, 对于风力7节、浪高3—4m以下的海况, 浮标倾角≤5°的次数占总采样次数的 54%, 浮标倾角≤10°的次数占总采样次数的83%, 浮标性能较好地满足了水下光辐射测量的技术要求。为减小阴影效应带来的光辐射测量误差, 文中采用了两种解决方法: 一是伸臂结构解决浮标体阴影的影响, 当太阳天顶角为0°时, 在近岸或者清洁水体中浮标体阴影引起的向上辐亮度测量误差分别不大于4% 和1%; 二是光纤光谱仪测量技术减少仪器自阴影的影响, 设计的光谱辐照度和辐亮度光学探头直径均为0.042m, 当水体光束衰减系数为0.12m-1, 太阳天顶角为10°时, 自阴影引起的向上辐亮度测量误差仅为1.5%。

关键词: 海洋光学, 光学浮标, 水色遥感, 定标与检验

Abstract:

A spar body was considered and a free-rotated saddle was used in a moored optical buoy. Theoretical results indicated that the buoy’s high initial stability enables it to be stable. Due to the centre of gravity position being lower than the buoyant centre, the rolling angle of the buoy is small, as it would result in strong ability to resist tilting and capsizing. In situ experiment results indicated that 83% of the buoy’s tilt angles are ≤10° and 54% of the buoy’s tilt angles are ≤5° under the conditions of wind speed less than 7 knots and wave height less than 3-4m, therefore the buoy performance satisfies the technical requirement for underwater light measurements. To minimize the shelf–shading effects on the light measurements, two solutions were found: First of all, stroked-out structures were used to avoid shelf-shading of buoy body, and when the solar zenith angle was 0°, the shelf-shading errors of upwelling radiance were lower than 4% and 1% for coastal and open oceans, respectively; Second, fiber spectrometer was used to avoid shelf-shading of sensors. The diameter of designed optical sensors for irradiance and radiance was 0.042m. When the beam attenuation coefficient was 0.12m-1 and the solar zenith angle was 10°, the self-shading error was 1.5% for upwelling radiance.

Key words: ocean optics, optical buoy, ocean color remote sensing, calibration and validation

曹文熙,杨跃忠,张敬祥,柯天存,卢桂新,李彩,郭超英,孙兆华,. 锚泊光学浮标浮体设计及近海试验[J]. 热带海洋学报, 2010, 29(2): 1-6.

CAO Wen-xi,YANG Yue-zhong,ZHANG Jing-xiang,KE Tian-cun,LU Gui-xin,LI C. Design and test of moored optical buoy[J]. Journal of Tropical Oceanography, 2010, 29(2): 1-6.

参考文献

[1] ANTOINE D, VENETIA S. Guide to the creation and use of ocean colour, level-3, binned data products[C]// Rep. Int. Ocean Color Coordinating Group 4, IOCCG. Dartmouth, Canada, 2004: 88.

[2] ANTOINE D, D’ORTENZIO F, HOOKER S B, et al. Assessment of uncertainty in the ocean reflectance determined by three satellite ocean color sensors (MERIS, SeaWiFS and MODIS-A) at an offshore site in the Mediterranean Sea (BOUSSOLE project)[J]. J Geophys Res, 2008, 113: doi:10.1029/2007JC004472.

[3] ANTOINE D, GUEVEL P, DESTE J F, et al. The “BOUSSOLE” buoy—A new transparent-to-swell taut mooring dedicated to marine optics: Design, tests, and performance at sea[J]. Journal of atmospheric and technology, 2008, 25: 968–989.

[4] CHAVEZ F P, WRIGHT P D, HERLIEN R, et al. A device for protecting moored spectroradiometers from biofouling[J]. J Atmos Ocean Tech, 2000, 17: 215–219.

[5] CLARK D K, GORDON H R, VOSS K J, et al. Validation of atmospheric correction over the oceans[J]. J Geophys Res, 102, 1997: 17209–17217.

[6] CLARK D K, YARBROUGH M A, FEINHOLZ M, et al. MOBY, a radiometric buoy for performance monitoring and vicarious calibration of satellite ocean color sensors: measurement and data analysis protocols[S]//Ocean Optics Protocols for Satellite Ocean Color Sensor Validation. 2003, Rev. 4, Vol. VI, NASA Tech. Memo. 2003-211621, NASA GSFC, Greenbelt, MD, 141.

[7] FARGION G S, MUELLER J L. Ocean optics protocols for satellite ocean color sensor validation[S]//Rev. 2. NASA Technical Memo 2000-209966. 2000, NASA Goddard Space Flight Center.

[8] HOOKER S B, MCCLAIN C R. The calibration and validation of SeaWiFS data[J]. Prog Oceanogr, 2000, 45: 427–465.

[9] HOOKER S B, MCCLAIN C R, MANNINO A. NASA strategic planning document: A comprehensive plan for the long-term calibration and validation of oceanic biogeochemical data[J]. NASA Special Publication SP-2007-214152, NASA GSFC, Greenbelt, MD, 2007, 31 pp.

[10] DICKEY T D, CHANG G C, LEWIS M R. Optical oceanography: recent advances and future directions using global remote sensing and in situ observations[J]. Rev Geophys, 2006, 44: doi: 10.1029/2003RG000148.

[11] STRUTTON P G, RYAN J P, CHAVEZ. F P. Enhanced chlorophyll associated with tropical instability waves in the equatorial Pacific[J]. Geophys Res Lett, 2001, 28: 2005–2008.

[12] KUWAHARA V S, STRUTTON P G, DICKEY T D, et al. Radiometric and bio-optical measurements from moored and drifting buoys: easurement and data analysis protocols[S]// Ocean Optics Protocols for Satellite Ocean Color Sensor Validation. 2003, Vol. VI. 35-79, NASA Goddard Space Flight Center.

[13] PINKERTON M H, LAVENDER S J, AIKEN J. Validation of SeaWiFS ocean color satellite data using moored data buoy[J]. J Geophys Res, 2003, 108: doi:10.1029/2002JC001337.

[14] ISHIZAKA J, ASANUMA I, EBUCHI N, et al. Time series of physical and optical parameters off Shimane, Japan, during fall of 1993: First observation by moored optical buoy system for ADEOS Data Verification[J]. Journal of Oceanography, 1997, 53: 245–258.

[15] MOREL A, GENTILI B. Diffuse reflectance of oceanic waters. II. Bidirectional aspects[J]. Appl Opt, 1993, 32: 6864–6879.

[16] GORDON H R, DING K. Self-shading of in-water optical instruments[J]. Limnol Oceanogr, 1992, 37: 491–500.

[17] 杨跃忠, 孙兆华, 曹文熙, 等. 海洋光学浮标的设计及应用试验[J]. 光谱学及光谱分析, 2009, 29(2): 565–569.

[18] CAO WENXI, YANG YUEZHONG, KE TIANCUN, et al. Optical systems for applications in ocean color remote sensing and interdisciplinary study
[J]. SPIE, 2003, 4892: 222–232.

[19] 曹文熙, 吴廷芳, 杨跃忠, 等. 光学浮标阴影效应的蒙特卡洛模拟[J]. 高技术通讯, 2003, 13(3): 80–84.

锚泊光学浮标浮体设计及近海试验

Design and test of moored optical buoy

PDF (PC)

赞

可视化

被引次数

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 6

Metrics

本文评价

推荐阅读 0

[1]	王剑, 陈楚群, 周伟华, 李祥付, 吴颉, 叶海彬, 唐世林. 利用遥感技术估算南海北部表层异养细菌丰度^*[J]. 热带海洋学报, 2021, 40(5): 53-62.
[2]	张雨, 王桂芬, 许占堂, 杨跃忠, 周雯, 郑文迪, 曾凯, 邓霖. 基于浮标观测的东海赤潮高发区秋、冬季漫射衰减系数的反演[J]. 热带海洋学报, 2020, 39(5): 71-83.
[3]	胡水波, 曹文熙, 王桂芬, 许占堂. 利用MODIS跟踪监测一个冷涡对海洋表层生物光学参数的影响^*[J]. 热带海洋学报, 2016, 35(3): 1-10.
[4]	王桂芬,曹文熙,杨跃忠,周雯,梁少君,. 珠江口藻华水体总吸收系数的变化特性及高光谱反演模式[J]. 热带海洋学报, 2010, 29(2): 52-58.
[5]	曹文熙,杨跃忠,王桂芬,赵俊,周雯,李彩,孙兆华,梁少君,柯天存,卢桂新. 赤潮的高光谱监测及预警方法[J]. 热带海洋学报, 2010, 29(2): 17-24.
[6]	杨跃忠,卢桂新,柯天存,许占堂,. 光学浮标控制系统硬件设计[J]. 热带海洋学报, 2010, 29(2): 7-11.