FN Archimer Export Format
PT J
TI Shallow Water Bathymetry Retrieval Using a Band-Optimization Iterative Approach: Application to New Caledonia Coral Reef Lagoons Using Sentinel-2 Data
BT 
AF AMRARI, Selim
   BOURASSIN, Emmanuel
   Andrefouet, Serge
   SOULARD, Benoit
   LEMONNIER, Hugues
   LE GENDRE, Romain
AS 1:1;2:1;3:2;4:1;5:1;6:1;
FF 1:PDG-RBE-LEADNC;2:PDG-RBE-LEADNC;3:;4:PDG-RBE-LEADNC;5:PDG-RBE-LEADNC;6:PDG-RBE-LEADNC;
C1 Institut Français de Recherche pour l’Exploitation de la MER, UMR 9220 ENTROPIE (Institut de Recherche pour le Développement, Université de la Réunion, IFREMER, Centre National de la Recherche Scientifique, Université de la Nouvelle-Calédonie), BP 32078, 98848 Nouméa, New Caledonia, France
   Institut de Recherche pour le Développement, UMR 9220 ENTROPIE (IRD, IFREMER, Université de la Réunion, Centre National de la Recherche Scientifique, Université de la Nouvelle-Calédonie), BP A5, 98848 Nouméa, New Caledonia, France
C2 IFREMER, FRANCE
   IRD, FRANCE
SI NOUMEA
SE PDG-RBE-LEADNC
UM ENTROPIE
IN WOS Ifremer UMR
   WOS Cotutelle UMR
   DOAJ
   copubli-france
   copubli-p187
IF 5.349
TC 8
UR https://archimer.ifremer.fr/doc/00728/84049/88979.pdf
   https://archimer.ifremer.fr/doc/00728/84049/88980.zip
LA English
DT Article
DE ;satellite derived bathymetry;rugose lagoon;adaptive iterative model;band ratio;UNESCO World Heritage Area;multispectral image
AB To achieve high accuracy bathymetry retrieval using remote sensing images with robust performance in a 0 to 25 m-deep lagoon with sharp bottom depth variations, a new Iterative Multiple Band Ratio (IMBR) algorithm is tested against known Multiple Band Ratio (MBR) and Single Band Ratio (SBR) algorithms. The test was conducted using the five multispectral bands, at 10 to 60 m resolution, of a Sentinel-2 image of the 25 km2 Poe lagoon, a UNESCO World Heritage Area. The IMBR approach requires training datasets for the definitions of depth threshold at which optimal band ratios vary. IMBR achieved accuracy, quantified with an original block cross-validation procedure across the entire depth range reached a mean absolute error of 46.0 cm. It compares very favorably against MBR (78.3 cm) and the various SBR results (188–254 cm). The method is suitable for generalization to other sites pending a minimal ground-truth dataset crossing all the depth range being available. We stress that different users may need different precisions and can use MBR or SBR algorithms for their applications. For the hydrodynamic modelling applications that are developing in New Caledonia, the IMBR solutions applied to Sentinel imagery are optimal. 
PY 2021
PD OCT
SO Remote Sensing
SN 2072-4292
PU MDPI
VL 13
IS 20
UT 000714939200001
DI 10.3390/rs13204108
ID 84049
ER

EF