Measurement of the surface emissivity of turbid waters

Liu Wenyao; R. T. Field; R. G. Gantt; V. Klemas

doi:10.1007/BF02843818

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Measurement of the surface emissivity of turbid waters

Updated：2023-05-16

- Measurement of the surface emissivity of turbid waters
- Journal of Oceanology and Limnology Vol. 5, Issue 4, Pages: 363-369(1987)
- Affiliations：
  
  Tianjin University China
- Author bio：
- Funds：
- DOI：10.1007/BF02843818
  CLC：
- Published：1987
- Accepted：
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Wenyao, L., Field, R.T., Gantt, R.G. et al. Measurement of the surface emissivity of turbid waters., Chin. J. Ocean. Limnol. 5, 363–369 (1987). https://doi.org/10.1007/BF02843818
DOI：

Wenyao, L., Field, R.T., Gantt, R.G. et al. Measurement of the surface emissivity of turbid waters., Chin. J. Ocean. Limnol. 5, 363–369 (1987). https://doi.org/10.1007/BF02843818 DOI：

摘要

Abstract

For interpreting thermal IR imagery of the ocean surface

the emissivity of the sea surface is usually assumed to be constant

approximately 0.98. However

the emissivity varies with the roughness of the sea surface

and the concentration and type of suspended particulates. The emissivity variations caused by the suspended sediments introduce significant errors in the satellite-derived temperature maps of turbid coastal waters. We measured in the laboratory the thermal IR emissivity of water as the suspended sediment concentration was varied from zero to extremely high values. The results indicated that increasing the sediment concentration decreases the spectral emissivity within the 8–14 μm waveband.

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Keywords

references

Klemas, V., M. Otley, W. Philpot, and R. Rogers, 1974. Correlation of Coastal Water Turbidity and Circulation with ERTS-1 and Skylab imagery.In: Proc. 9th Int. Symp. Remote Sens. Environ., 15–19 April 1974, Ann Arbor, MI. pp. 1289–1318.

Sidran, Miram, 1980. Infrared sensing of sea surface temperature from space.Remote Sens. Environ. 10: 101–114.

Zhang Ken, Qian Ning and Cai Tilu. 1982. An analysis of the conditions of transporting flow with hyperconcentration over a long distance.J. Sediment Res. 3: 1–10.

Zhang Youwen and Zhang Caigen 1980. Measurement of the emissivity and radiation temperature of various room temperature materials.Acta Physica Sinica 29(7): 799–835. (in Chinese).

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