Water transparency measurements in the deep Ionian Sea

A long optical base line spectrophotometer designed to measure light transmission in deep sea waters is described. The variable optical path length allows measurements without the need for absolute or external calibration. The spectrophotometer uses eight groups of uncollimated light sources emittin...

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Bibliographic Details
Published in:Astroparticle physics 2010-11, Vol.34 (4), p.187-197
Main Authors: Anassontzis, E.G., Ball, A.E., Belias, A., Fotiou, A., Grammatikakis, G., Kontogiannis, H., Koske, P., Koutsoukos, S., Lykoussis, V., Markopoulos, E., Psallidas, A., Resvanis, L.K., Siotis, I., Stavrakakis, S., Stavropoulos, G., Zhukov, V.A.
Format: Article
Language:English
Subjects:
Astrophysics
Calibration
Cosmology and Extra-Galactic Astrophysics
Deep sea
Emittance
KM3NeT
Light transmission
NESTOR
Neutrino
Optical paths
Physics
Sciences of the Universe
Spectra
Spectrophotometers
Telescopes
Underwater telescope
Water transparency
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Description
Summary:A long optical base line spectrophotometer designed to measure light transmission in deep sea waters is described. The variable optical path length allows measurements without the need for absolute or external calibration. The spectrophotometer uses eight groups of uncollimated light sources emitting in the range 370–530 nm and was deployed at various depths at two locations in the Ionian Sea that are candidate sites for a future underwater neutrino telescope. Light transmission spectra at the two locations are presented and compared.
ISSN:0927-6505
1873-2852
DOI:10.1016/j.astropartphys.2010.06.008