%0 Book Section %9 OS CH : Chapitres d'ouvrages scientifiques %A Dupouy, Cécile %A Savranski, T. %A Lefèvre, Jérôme %A Despinoy, Marc %A Mangeas, Morgan %A Fuchs, Rosalie %A Faure, Vincent %A Ouillon, Sylvain %A Petit, Michel %T Monitoring optical properties of the Southwest Tropical Pacific %B Remote sensing of the coastal ocean, land, and atmosphere environment %C Bellingham %D 2010 %E Frouin, R. %E Yoo, H.R. %E Won, J.S. %E Feng, A. %L fdi:010052111 %G ENG %I SPIE %K CYCLE BIOGEOCHIMIQUE ; CHLOROPHYLLE ; ABSORPTION ; REFLECTANCE ; TELEDETECTION ; DONNEES SATELLITE ; MODELE %K NOUVELLE CALEDONIE %K PACIFIQUE TROPICAL SUD OUEST %P 13 %R 10.1117/12.869888 %U https://www.documentation.ird.fr/hor/fdi:010052111 %> https://www.documentation.ird.fr/intranet/publi/depot/2011-06-29/010052111.pdf %V 7858 %W Horizon (IRD) %X We present data collected as part of VALidation HYperspectral of a BIOgeochemical model (ValHyBio), a PNTSsponsored program dedicated to chlorophyll satellite imaging and validation as affected by bathymetry in the South Western Tropical Lagoon of New Caledonia. The specific goals of ValHyBio are to: - examine time-dependent oceanic reflectance in relation to dynamic surface processes, - construct field/satellite reflectance-based chlorophyll models, - investigate the feasibility of inverting the model to yield surface chlorophyll and turbidity, and - validate the biogeochemical model with field/satellite observations. The in situ bio-optical parameters include absorption coefficients by CDOM and particles, Secchi disk depth, backscattering coefficient, pigment concentration, suspended matter concentration, and K_dPAR. They are measured every month at 5 stations, of contrasted bathymetry and bottom reflectance, as well as at a reference station situated 4 miles offshore, and at a station over coral reefs. Remote sensing reflectance is calculated from the absorption and backscattering coefficients and compared with satellite data. SeaWIFS and MODIS Aqua match-ups collected over the period 1997-2010 (ValHySat database) are used. Satellite retrievals are examined as a function of bathymetry and for the special case of Trichodesmium red tides. The feasibility of a long-term monitoring program of water optical properties with satellite remote sensing techniques is examined in the frame of the GOPS (South Pacific Integrated Observatory). %S Proceedings of SPIE %B SPIE Remote Sensing 2010 %8 2010/09/20-23 %$ 126TELAPP05 ; 032MILPHY