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Southampton underwater multiparameter optical-fibre spectrometer system (SUMOSS)

Southampton underwater multiparameter optical-fibre spectrometer system (SUMOSS)
Southampton underwater multiparameter optical-fibre spectrometer system (SUMOSS)
The SUMOSS was designed to measure simultaneously a number of inherent and apparent optical properties at high spectral resolution (<5 nm). The sensors consist of a transmissometer to measure beam attenuation, plane irradiance sensors (to measure reflectance, K-d and K-u) and a scalar irradiance sensor for calculating the absorption coefficient. The SUMOSS was designed to minimize the effects of self-shading of the sensors. The radiometric stability of the instrument across the visible spectrum (350-720 nm) was assessed in a series of dark room experiments. The linearity of the response of the passive sensors was evaluated over a range of intensities and was found to be stable to within 1%. The spectral resolution was measured using red and green lasers on the passive channels (FWHM 4 nm, sampling interval 0.4 nm). Radiometric calibrations showed that there was minimal variability in the spectral response over time. The SUMOSS has been deployed in three optically different water masses (the Baltic, Mediterranean and UK) and the spectral quality and intensity of the readings is interpreted using measurements of the concentrations of suspended particulate material and chlorophyll.
0957-0233
1168-1177
Weeks, A.R.
03ffbc83-d585-43eb-9bdf-cd279656a020
Robinson, I.S.
34a96496-b35d-40fa-b649-946105930512
Schwarz, J.N.
d7720f0c-84da-4942-9c2c-b5112eccb88b
Trundle, K.J.
8aea015e-9e61-44c1-979b-dae574bc1a07
Weeks, A.R.
03ffbc83-d585-43eb-9bdf-cd279656a020
Robinson, I.S.
34a96496-b35d-40fa-b649-946105930512
Schwarz, J.N.
d7720f0c-84da-4942-9c2c-b5112eccb88b
Trundle, K.J.
8aea015e-9e61-44c1-979b-dae574bc1a07

Weeks, A.R., Robinson, I.S., Schwarz, J.N. and Trundle, K.J. (1999) Southampton underwater multiparameter optical-fibre spectrometer system (SUMOSS). Measurement Science and Technology, 10 (12), 1168-1177. (doi:10.1088/0957-0233/10/12/308).

Record type: Article

Abstract

The SUMOSS was designed to measure simultaneously a number of inherent and apparent optical properties at high spectral resolution (<5 nm). The sensors consist of a transmissometer to measure beam attenuation, plane irradiance sensors (to measure reflectance, K-d and K-u) and a scalar irradiance sensor for calculating the absorption coefficient. The SUMOSS was designed to minimize the effects of self-shading of the sensors. The radiometric stability of the instrument across the visible spectrum (350-720 nm) was assessed in a series of dark room experiments. The linearity of the response of the passive sensors was evaluated over a range of intensities and was found to be stable to within 1%. The spectral resolution was measured using red and green lasers on the passive channels (FWHM 4 nm, sampling interval 0.4 nm). Radiometric calibrations showed that there was minimal variability in the spectral response over time. The SUMOSS has been deployed in three optically different water masses (the Baltic, Mediterranean and UK) and the spectral quality and intensity of the readings is interpreted using measurements of the concentrations of suspended particulate material and chlorophyll.

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Published date: 1999

Identifiers

Local EPrints ID: 77739
URI: http://eprints.soton.ac.uk/id/eprint/77739
ISSN: 0957-0233
PURE UUID: f670897c-b65c-4416-a0c4-2fb10fbf0db5

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Date deposited: 11 Mar 2010
Last modified: 08 Jan 2022 11:30

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Contributors

Author: A.R. Weeks
Author: I.S. Robinson
Author: J.N. Schwarz
Author: K.J. Trundle

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