| 摘要: |
| 利用2006 年12 月4 日珠江口海域实测的高光谱遥感反射率数据及悬浮泥沙质量浓度数据, 进行了该海域表层水体悬浮泥沙遥感反演模式的研究。研究结果表明, 悬浮泥沙质量浓度与Rrs (λ1)/Rrs (λ2 ) - Rrs (λ1)/Rrs(λ3) 的相关性较好, 其中Rrs (λ)代表遥感反射率, λ代表波长,λ1＝762.6 nm,λ2＝559.09 nm,λ3＝772.78 nm, 建立了悬浮泥沙质量浓度定量遥感反演模式, 该模式的均方根误差为4.67 mg/L, 可以用于珠江口海域的悬浮泥沙质量浓度的遥感监测。 |
| 关键词: 珠江口 高光谱 悬浮泥沙 |
| DOI： |
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| 基金项目:广东省自然科学基金重点项目(06105018)?; 国家海洋局公益性行业科研专项(200805028); 广东海洋大学自然科学基金(1012151,1012152) |
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| Hyperspectral data-based remote-sensing inversion model for suspended sediment in surface waters at the Pearl River Estuary |
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LIU Da-zhao,ZHANG Chen-guang,FU Dong-yang,SHEN Chun-yan
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| Abstract: |
| The remote-sensing inversion model for the Pearl River Estuary suspended sediment was established
using data of hyperspectral remote sensing reflectance and suspended sediment concentrations collected on December 4, 2006. We found a good correlation between suspended sediment concentrations and Rrs (λ1)/Rrs (λ2 ) - Rrs (λ1)/Rrs(λ3)( λ,wave length; Rrs (λ) remote sensing reflectance;? λ1= 762.6 nm;?λ2 = 559.09 nm; and λ3 = 727.8nm). The root mean square error of this model was 4.67 mg/L. The model can be used in the remote sensing of the suspended sediment concentrations of the Pearl River Estuary. |
| Key words: the Pearl River Estuary hyperspectral suspended sediment |
