Cumulative effects of salinity and sediment concentration on reflectance measurements
作者:
D. S. BHARGAVA,
D. W. MARIAM,
期刊:
International Journal of Remote Sensing
(Taylor Available online 1992)
卷期:
Volume 13,
issue 11
页码: 2151-2159
ISSN:0143-1161
年代: 1992
DOI:10.1080/01431169208904258
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
The cumulative effects of salinity and sediment concentration variation on the spectral reflectance measurement from a sediment-laden saline water was studied in the laboratory using a spectroradiometer. Reflectance is observed to be dependent on salinity concentration in addition to sediment type and concentration. It is also observed that, in general, the spectral response (i.e. per cent reflectance at different wavelengths) has a negative correlation with salinity, but a positive correlation with sediment concentration. A model for predicting the suspended sediment concentration from reflectance measurements with due involvement of the salinity variation is developed. The predicted and observed values of the sediment concentration by the presented model show good agreement.
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