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Estimation of Euphotic Zone Depth (Zeu) from Secchi Disc Depth and
KdPAR in Kuala Terengganu Coastal Water
Nor Halimah binti Jumahat
Supervisor: Dr. Md. Suffian bin Idris
Bachelor of Science (Marine Science)
School of Marine and Environmental Sciences
Euphotic zone depth (Zeu) is the depth where Photosynthetic Available Radiation
(PAR) is 1% of its surface value and has high primary productivity which important
for the marine ecosystem. This study aims to determine the relationship between
Secchi Disc Depth (SDD) and Zeu, also, to estimate them in satellite observation.
SDD, light attenuation (Kd) and Remote Sensing Reflectance (Rrs) were collected by
in-situ for several months then were analysed to determine the relationship between
Zeu and SDD. It is found that there is a good relationship between Zeu and SDD.
Zeu and SDD model then were applied to climatology monthly image of satellite data
to know the variation of Zeu and SDD. The changes of Zeu and SDD associated with
seasonal changes where during northeast monsoon shows low Zeu and SDD. The
findings will provide better understanding and can be future reference as Zeu is
important in the ocean ecosystem.
1894 | UMT UNDERGRADUATE RESEARCH DAY 2018