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长江口及邻近海域水体反射率的模拟

洪官林 沈芳 沈宏

洪官林, 沈芳, 沈宏. 长江口及邻近海域水体反射率的模拟[J]. 华东师范大学学报(自然科学版), 2012, (1): 37-46.
引用本文: 洪官林, 沈芳, 沈宏. 长江口及邻近海域水体反射率的模拟[J]. 华东师范大学学报(自然科学版), 2012, (1): 37-46.
HONG Guan-lin, SHEN Fang, SHEN Hong. Modeling of seawater reflectance in the Yangtze Estuary and the adjacent sea[J]. Journal of East China Normal University (Natural Sciences), 2012, (1): 37-46.
Citation: HONG Guan-lin, SHEN Fang, SHEN Hong. Modeling of seawater reflectance in the Yangtze Estuary and the adjacent sea[J]. Journal of East China Normal University (Natural Sciences), 2012, (1): 37-46.

长江口及邻近海域水体反射率的模拟

详细信息
  • 中图分类号: P733

Modeling of seawater reflectance in the Yangtze Estuary and the adjacent sea

  • 摘要: 通过对2009年8月和11月水体光学特性的分析发现:长江口邻近海域夏秋两季反射光谱曲线由于悬浮泥沙、浮游植物以及黄色物质的影响呈现4种形状;叶绿素a浓度与浮游植物吸收系数可通过两种方式建立良好关系;将水体各组分光学特性参数化,并结合叶绿素a浓度与吸收系数的两种关系分别建立水体反射光谱参数模式,从而可以对水体遥感反射光谱进行模拟,模拟曲线的均方根误差分别为0.004 4和0.004 5.在模式的建立中,根据长江口海域水体组分浓度的分布状况,对悬浮泥沙浓度以及叶绿素a浓度进行分类,得到不同水体组分浓度下反射率光谱曲线;然后分别获得模式参数并进行模拟,得到的反射率模拟曲线与实测相对均方根误差为0.003 5,具有更高的模拟精度.
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出版历程
  • 收稿日期:  2011-02-01
  • 修回日期:  2011-05-01
  • 刊出日期:  2012-01-25

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