Murakami H. auteur aut IRD Dupouy Cécile auteur aut IRD Röttgers R. auteur aut IRD Frouin R. auteur aut IRD text bookSection eng text/pdf born digital access Hyperspectral remote sensing reflectance (Rrs) was measured by a TriOS radiometer system along the East Coast of New Caledonia during the R/V Alis 03-13 October 2011 CALIOPE cruise. The TriOS system consists of radiance and irradiance sensors measuring in the spectral range 320-950 nm, at a spectral resolution of about 10 nm (sampled by every 3.3 nm), and within a 7-degree field-of-view for the radiance sensor. The method developed by Froidefond and Ouillon (2005) was used to determine Rrs, i.e., the radiance sensor was mounted on a small raft to measure upwelling radiance just below the surface, and Rrs was calculated by normalizing water-leaving radiance with downward solar irradiance measured on the ship deck. Inherent Optical Properties (IOPs), i.e., absorption coefficients of phytoplankton and detritus+dissolved substances (aph and adg, respectively), and particulate backscattering coefficient (bbp) were estimated from the hyperspectral Rrs data by applying linear matrix inversion (Hoge and Lyon, 1996). The IOP inversion algorithm was adapted to MODIS data and applied to Level 1b imagery at 500 m resolution to demonstrate the feasibility of regular IOP monitoring from space in the study area. Local characteristics of the IOP spectra were used for the candidate spectra in the algorithm. The estimated MODIS Rrs and IOPs were evaluated using TriOS Rrs and in-situ IOP measurements obtained concomitantly during the cruise. specialized CAMPAGNE OCEANOGRAPHIQUE TELEDETECTION SPATIALE DONNEES SATELLITE REFLECTANCE PHYTOPLANCTON PARTICULE MATIERE ORGANIQUE DISSOUTE CALIOPE PROPRIETE OPTIQUE MODIS NOUVELLE CALEDONIE 126TELAPP05 030OCECAM Frouin R.J. ed. edt IRD Ebuchi N. ed. edt IRD Pan D. ed. edt IRD Saino T. ed. edt IRD 8525 85250F 1-9 Bellingham WA SPIE 2012 SPIE Remote Sensing Conference, Kyoto (JPN), 2012/10/31-2012/11/01 85250F https://www.documentation.ird.fr/hor/fdi:010063841 10.1117/12.979245 [F B010063841] https://www.documentation.ird.fr/hor/fdi:010063841 https://www.documentation.ird.fr/intranet/publi/depot/2015-07-23/010063841.pdf Accès réservé (Intranet de l'IRD) IRD - Base Horizon / Pleins textes 2015-07-02 2015-11-09 fdi:010063841 fre