Abstract
The purpose of the research was to investigate the relationships between and among surface spectral reflectance, the underwater light field, and suspended sediment concentrations (SSG). Both spectroradiometer and quantum-sensor data were collected over and in an 8543 litre vinyl pool, under natural sunlight. Twenty levels of SSCs ranging from 50 to (1000 mg/l were put into solution. Both downwelling and upwelling irradiances below the water surface decreased with increasing SSC, even though atmospheric downwelling increased. A relationship for PAR (Photosynthetically Active Radiation) transmittance, reflectance, and absorption with varying levels of SSC was illustrated. The association between surface spectral reflectance and SSC was linear at low levels and non-linear at high level of SSC
Keywords
DownwellingSpectroradiometerIrradianceUnderwaterPhotosynthetically active radiationRemote sensingEnvironmental scienceSedimentReflectivityAbsorption (acoustics)TransmittanceLinear relationshipUpwellingAtmospheric sciencesOceanographyOpticsGeographyGeologyChemistryPhysicsGeomorphologyPhotosynthesis
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Publication Info
- Year
- 1994
- Type
- article
- Volume
- 60
- Issue
- 12
- Pages
- 1463-1471
- Citations
- 68
- Access
- Closed
External Links
Citation Metrics
68
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Cite This
Liangxiu Han,
Donald C. Rundquist
(1994).
The response of both surface reflectance and the underwater light field to various levels of suspended sediments: preliminary results.
Photogrammetric Engineering & Remote Sensing
, 60
(12)
, 1463-1471.