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台湾海峡及周边海域水色光谱特性分析
引用本文:张志伟,曹安州,荣增瑞,刘玉光.台湾海峡及周边海域水色光谱特性分析[J].海洋通报,2012,31(1):80-87.
作者姓名:张志伟  曹安州  荣增瑞  刘玉光
作者单位:中国海洋大学物理海洋实验室,山东青岛,266003
基金项目:国家重点基础研究计划(973计划)“我国陆架海生态环境演变机制综合分析及未来变化趋势预测”(2010CB428904) 中国海洋大学本科生研究发展计划(OUC—SRDP)项目(1012010102)
摘    要:利用2006—2007年4次908计划ST06区块海洋光学调查的数据和MODIS水色遥感数据,对台湾海峡及周边海域的水色光谱特性进行了研究和分析。结果显示该海域的水色光谱主要有4个类型:类型1光谱峰值出现在580 nm附近,谱峰两侧遥感反射率随波长变化迅速减小,主要分布在紧靠中国大陆的海域;类型2光谱峰值出现在540~560 nm之间,具有谱峰宽的特点,主要分布在台湾海峡靠近大陆的一侧;类型3光谱与大洋水体光谱类似,主要分布在台湾西南的南海区域和吕宋海峡区域;类型4光谱在.450 nm附近出现极小值,在500~600 nm之间出现峰值,主要出现在台湾海峡中部和靠近台湾岛的一侧。其中类型2和4水体分布具有明显的季节特征。类型3、4、2、1对应的叶绿素a浓度和悬浮泥沙浓度呈上升趋势,对应的透明度依次降低,该海域以二类水体为主。

关 键 词:台湾海峡  水色光谱  遥感反射率  二类水体
收稿时间:2010/9/18 0:00:00
修稿时间:2010/12/2 0:00:00

Analysis on the characteristics of ocean color spectra in the Taiwan Strait and its surrounding area
ZHANG Zhi-wei,CAO An-zhou,RONG Zeng-rui and LIU Yu-guang.Analysis on the characteristics of ocean color spectra in the Taiwan Strait and its surrounding area[J].Marine Science Bulletin,2012,31(1):80-87.
Authors:ZHANG Zhi-wei  CAO An-zhou  RONG Zeng-rui and LIU Yu-guang
Institution:College of Marine Environment, Ocean University of China, Qingdao 266003, China;College of Marine Environment, Ocean University of China, Qingdao 266004, China;College of Marine Environment, Ocean University of China, Qingdao 266005, China;College of Marine Environment, Ocean University of China, Qingdao 266006, China
Abstract:The characteristics of ocean color spectra in the Taiwan Strait and its surrounding area are analyzed by the in-situ data from four oceanic optical investigations carried out from 2006 to 2007 and the satellite remote sensing data from MODIS. The results show that there are four types of color optical spectra in this area. The spectrum peak value of type 1 locates near 580nm. Its reflectance reduces rapidly when the wavelength is bigger or smaller than 580 nm. Spectra of type 1 are mainly distributed in the narrow area along the China coast. The spectrum of type 2 has the characteristics of wide spectrum peak, with the peak at 540-560 nm. Spectra of type 2 are mainly distributed in the western Taiwan Strait, the area closer to China Mainland. Spectra of type 3 resemble those of the open ocean, mainly distributed over the South China Sea area to the southwest of Taiwan and the Luzon Strait area. Spectra of type 4 are mainly distributed in the middle and eastern Taiwan Strait. Its spectrum peak value locates at 500-600 nm, with a minimum at 450nm. The distributions of type 2 and type 4 have remarkable seasonal variability. The concentrations of chlorophyll-a and suspended sediment increase and the transparency decreases with type number 3,4,2,1. The waters in this area are mainly case-II waters.
Keywords:the Taiwan Strait  ocean color spectrum  remote sensing reflectance  CaseⅡwaters
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