Light & Engineering 27 (3)

Volume 27
Date of publication 08/06/2019
Pages 105–110

Double Beam Spectrophotometer for Simultaneous Measurements of the Upwelling Sea Radiance and the Incident See Irradiance. L&E 27 (3) 2019

Articles authors:

Mikhail Yong-gon Lee, Sergei V. Fedorov

Mikhail Yongon Lee, Prof., Dr. of phys.-math. sciences. In 1965, he graduated from the Leningrad Institute of Precise Mechanics and Optics. At present, he is a Head of the Sea Optics and Biophysics Department of the Marine Hydro-physical Institute of the Russian Academy of Science. His research interests are optical oceanography, remote sensing of ocean, diffusion of light in marine water, field bio-optical studies, development of devices for hydro-optical studies

Sergei V. Fedorov is a Head of the Remote Study Methods Department of the Marine Hydro-physical Institute of the Russian Academy of Science. His research interests are optical oceanography, remote sensing of ocean, development of devices for hydro-optical studies

Abstract:

The article describes the structure and the operation principle of the spectrophotometer developed on the basis of a compact rapid monochromator with one input port and two output ports and a radiometric unit where upwelling radiation radiance and sea surface irradiance channels are located. A new approach to measurements of spectral characteristics of upwelling radiation of sea based on combination of advantages of a double beam photometer with a photomultiplier and a directreading photometer with a highstability silicon photodiode for its absolute adjustment in energy units is implemented.

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