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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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The objective of this study was to investigate the basic relationships between spectral reflectance and varying concentrations of
sediment in surface waters. An experimental method for determining suspended sediment concentration (SSC) in the water by use
of a spectroradiometer above the water surface, in visible and near-infrared (NIR) wavelengths, is applied. The main advantage of
the method is the direct comparison of spectral reflectance and the SSC, but it requires an accurate knowledge of the water body
and sediment. Therefore numerous spectroradiometric measurements are carried out in situ measurements, for SSC, ranging from
zero to 100 percentage and two types of sediment applied in the water tank. The results indicate that the suspended sediment
causes increasing spectral reflectance response in waters. We observed that spectral reflectance increases with SSC, first at the
lower wavelengths (430–480 nm), then in the middle wavelengths (570–700 nm), and finally, in the NIR domain (800–820 nm);
a characteristic maximum reflectance appears at 400-670 nm. Relationships between the wavelength, integral value, and the SSC
were evaluated on the basis of the regression analysis. The regression curve for the relation between the wavelength, integral value,
and the SSC were determined (R2>0.98). Finally, the specular wavelength can be estimated to recognize the sediment and to
improve SC estimation accuracy in the water.
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참고문헌 (12)
참고문헌 신청
Amos, C. L. / 1985 / Discrimination of suspended particulate matter in the Bay of Fundy using the Nimbus Coastal Zone Color Scanner / Can. J. of Remote Sensing 11 : 85 ~ 92
Bhargava, D. S. / 1990 / Spectral reflectance relationships to turbidity generated by different clay materials / Photo. Eng. and Remote Sensing 56 : 225 ~ 229
Cho, H. Y. / 2002 / Observation of SS Concentration on Coastal Waters off the Gaduk Island / Korean Society of Coastal and Ocean Engineers : 224 ~ 231
Clark, H. E. / 1987 / Soil erosion: off-site environmental effects. In Agricultural Soil Loss: process, policies, and prospects / Westview Press : 59 ~ 90
Goodin, D. G. / 1993 / Analysis of suspended solids in water using remotely sensed high resolution derivative spectra / Photo. Eng. and Remote Sensing 59 : 505 ~ 510
Bhargava, D. S. / 1990 / Spectral reflectance relationships to turbidity generated by different clay materials / Photo. Eng. and Remote Sensing 56 : 225 ~ 229
Cho, H. Y. / 2002 / Observation of SS Concentration on Coastal Waters off the Gaduk Island / Korean Society of Coastal and Ocean Engineers : 224 ~ 231
Clark, H. E. / 1987 / Soil erosion: off-site environmental effects. In Agricultural Soil Loss: process, policies, and prospects / Westview Press : 59 ~ 90
Goodin, D. G. / 1993 / Analysis of suspended solids in water using remotely sensed high resolution derivative spectra / Photo. Eng. and Remote Sensing 59 : 505 ~ 510
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