The impact of bottom brightness on spectral reflectance of suspended sediments
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Abstract
Two experiments were conducted outdoors to investigate how bottom brightness impacts the spectral response of a water column under varied suspended sediment concentrations. A white aluminum panel placed at the bottom of the tank was used as the bright bottom, and a flat-black tank liner served as the dark bottom. Sixteen levels of suspended sediment from 25 to 400 mg litre -1 were used in each experiment. Spectral data were collected using a Spectron SE-590 spectroradiometer. The major findings include the following: the bright bottom had the greatest impact at visible wavelengths; when suspended sediment concentrations exceeded 100 mg litre -1, the bright bottom response was found to be negligible; and, substrate brightness has minimal impact between 740 and 900 nm, suggesting that these wavelengths are best for measuring suspended sediment concentrations by means of remote sensing.
| Publication type | Article |
|---|---|
| Publication Subtype | Journal Article |
| Title | The impact of bottom brightness on spectral reflectance of suspended sediments |
| Series title | International Journal of Remote Sensing |
| DOI | 10.1080/01431160050029558 |
| Volume | 21 |
| Issue | 11 |
| Year Published | 2000 |
| Language | English |
| Publisher | Taylor & Francis |
| Contributing office(s) | Earth Resources Observation and Science (EROS) Center |
| Description | 10 p. |
| First page | 2259 |
| Last page | 2268 |
| Online Only (Y/N) | N |
| Additional Online Files (Y/N) | N |
| Google Analytic Metrics | Metrics page |