caa a22 4500 445891343 CHVBK 20180317145617.0 cr unu---uuuuu 170323e20110101xx s 000 0 eng 10.1007/s10750-010-0473-7 doi (NATIONALLICENCE)springer-10.1007/s10750-010-0473-7 Estimating specific inherent optical properties of tropical coastal waters using bio-optical model inversion and in situ measurements: case of the Berau estuary, East Kalimantan, Indonesia [Elektronische Daten] [W. Ambarwulan, M. Salama, C. Mannaerts, W. Verhoef] Specific inherent optical properties (SIOP) of the Berau coastal waters were derived from in situ measurements and inversion of an ocean color model. Field measurements of water-leaving reflectance, total suspended matter (TSM), and chlorophyll a (Chl a) concentrations were carried out during the 2007 dry season. The highest values for SIOP were found in the turbid waters, decreasing in value when moving toward offshore waters. The specific backscattering coefficient of TSM varied by an order of magnitude and ranged from 0.003m2g−1, for clear open ocean waters, to 0.020m2g−1, for turbid waters. On the other hand, the specific absorption coefficient of Chl a was relatively constant over the whole study area and ranged from 0.022m2mg−1, for the turbid shallow estuary waters, to 0.027m2mg−1, for deeper shelf edge ocean waters. The spectral slope of colored dissolved organic matter light absorption was also derived with values ranging from 0.015 to 0.011nm−1. These original derived values of SIOP in the Berau estuary form a corner stone for future estimation of TSM and Chl a concentration from remote sensing data in tropical equatorial waters. The Author(s), 2010 Subsurface irradiance reflectance nationallicence Total suspended matter nationallicence Chlorophyll a nationallicence Ocean optics nationallicence Bio-optical model nationallicence Tropical waters nationallicence Ambarwulan W. Faculty of Geo-Information Science and Earth Observation (ITC), University of Twente, Enschede, The Netherlands aut Salama M. Faculty of Geo-Information Science and Earth Observation (ITC), University of Twente, Enschede, The Netherlands aut Mannaerts C. Faculty of Geo-Information Science and Earth Observation (ITC), University of Twente, Enschede, The Netherlands aut Verhoef W. Faculty of Geo-Information Science and Earth Observation (ITC), University of Twente, Enschede, The Netherlands aut Hydrobiologia Springer Netherlands 658/1(2011-01-01), 197-211 0018-8158 658:1<197 2011 658 10750 https://doi.org/10.1007/s10750-010-0473-7 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10750-010-0473-7 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Ambarwulan W. Faculty of Geo-Information Science and Earth Observation (ITC), University of Twente, Enschede, The Netherlands aut NATIONALLICENCE 700 1- Salama M. Faculty of Geo-Information Science and Earth Observation (ITC), University of Twente, Enschede, The Netherlands aut NATIONALLICENCE 700 1- Mannaerts C. Faculty of Geo-Information Science and Earth Observation (ITC), University of Twente, Enschede, The Netherlands aut NATIONALLICENCE 700 1- Verhoef W. Faculty of Geo-Information Science and Earth Observation (ITC), University of Twente, Enschede, The Netherlands aut NATIONALLICENCE 773 0- Hydrobiologia Springer Netherlands 658/1(2011-01-01), 197-211 0018-8158 658:1<197 2011 658 10750 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer