Measurement of inherent optical properties in the Arabian Sea

Citation
T. Suresh et al., Measurement of inherent optical properties in the Arabian Sea, I J MAR SCI, 27(3-4), 1998, pp. 274-280
Citations number
27
Categorie Soggetti
Aquatic Sciences
Journal title
INDIAN JOURNAL OF MARINE SCIENCES
ISSN journal
03795136 → ACNP
Volume
27
Issue
3-4
Year of publication
1998
Pages
274 - 280
Database
ISI
SICI code
0379-5136(199809/12)27:3-4<274:MOIOPI>2.0.ZU;2-6
Abstract
Inherent optieal properties, absorption and beam attenuation were measured in-situ using a reflective tube absorption meter at nine wavelengths, 412, 440, 488, 510, 555, 630, 650, 676 and 715 nm, in the Arabian Sea during Mar ch. Since inherent optical properties depend on the constituents of the wat er, these data were analysed with the pigment concentration and total suspe nded matter. The results are compared with those of other investigators usi ng in-vivo methods. A non-linear relationship with Secchi depth was used to evaluate beam attenuation at 510 nm. Results of linear regression of beam attenuation at 490 nm with that at other wavelengths were found to be compa rable with those reported by others for wavelength above 440 nm. Though the slope of regression increased from 715 to 440 nm a deviation with a decrea se in the slope was noticed at 412 nm.