Title :
Retrieval of chlorophyll absorption spectra from remote sensing reflectance of turbid coastal waters
Author :
Liew, Soo Chin ; Lim, Kim Hwa ; Kwoh, Leong Keong
Author_Institution :
Centre for Remote Imaging, Sensing & Process., Nat. Univ. of Singapore, Singapore
Abstract :
The phytoplankton absorption coefficients of turbid coastal sea water with high sediment and chlorophyll content is retrieved by modeling of the remote sensing reflectance measured at the water surface. Sea-truth water sampling campaigns were carried out from Dec 1996 to Dec 1999 in coastal waters around Singapore. In-situ reflectance spectra and laboratory measurements of the total suspended solid (TSS) and chlorophyll-a (Chl-a) were made from the water samples. The phytoplankton absorption at 440 nm is retrieved by fitting the reflectance spectra to a theoretical model
Keywords :
oceanographic techniques; remote sensing; 440 nm; Sea-truth; Singapore; absorption coefficients; absorption spectra; chlorophyll; marine biology; measurement technique; ocean; optical imaging; optical method; phytoplankton; reflectance; reflectance spectra; remote sensing; total suspended solid; turbid coastal waters; visible; Absorption; Content based retrieval; Laboratories; Reflectivity; Remote sensing; Sampling methods; Sea measurements; Sea surface; Sediments; Surface fitting;
Conference_Titel :
Geoscience and Remote Sensing Symposium, 2001. IGARSS '01. IEEE 2001 International
Conference_Location :
Sydney, NSW
Print_ISBN :
0-7803-7031-7
DOI :
10.1109/IGARSS.2001.976132
