Titre :

Shipborne oceanic high-spectral-resolution lidar for accurate estimation of seawater depth-resolved optical properties

Auteur(s) :

Zhou, Yudi [Auteur]
Intelligent Optics and Photonics Research Center, Jiaxing Key Laboratory of Photonic Sensing and Intelligent Imaging
Ningbo Research Institute, State Key Laboratory of Modern Optical Instrumentation
Chen, Yang [Auteur]
Ningbo Research Institute, State Key Laboratory of Modern Optical Instrumentation
Zhao, Hongkai [Auteur]
Ningbo Research Institute, State Key Laboratory of Modern Optical Instrumentation
Dionisi, Davide [Auteur]
Istituto di Science Marine [ISMAR ]
Chami, Malik [Auteur]
TROPO - LATMOS
Di Girolamo, Paolo [Auteur]
Scuola di Ingegneria [Potenza]
Churnside, James [Auteur]
NOAA Chemical Sciences Laboratory [CSL]
Cooperative Institute for Research in Environmental Sciences [CIRES]
Malinka, Aleksey [Auteur]
B. I. Stepanov Institute of Physics [Minsk]
Zhao, Huade [Auteur]
National Marine Environmental Monitoring Center
Qiu, Dajun [Auteur]
Cui, Tingwei [Auteur]
National Sun Yat-sen University [NSYSU]
Liu, Qun [Auteur]
Ningbo Research Institute, State Key Laboratory of Modern Optical Instrumentation
Chen, Yatong [Auteur]
Ningbo Research Institute, State Key Laboratory of Modern Optical Instrumentation
Phongphattarawat, Sornsiri [Auteur]
Prince of Songkla University [PSU]
Wang, Nanchao [Auteur]
Ningbo Research Institute, State Key Laboratory of Modern Optical Instrumentation
Chen, Sijie [Auteur]
Ningbo Research Institute, State Key Laboratory of Modern Optical Instrumentation
Chen, Peng [Auteur]
Yao, Ziwei [Auteur]
National Marine Environmental Monitoring Center
Le, Chengfeng [Auteur]
Ocean College
Tao, Yuting [Auteur]
Ningbo Research Institute, State Key Laboratory of Modern Optical Instrumentation
Xu, Peituo [Auteur]
Ningbo Research Institute, State Key Laboratory of Modern Optical Instrumentation
Wang, Xiaobin [Auteur]
Ningbo Research Institute, State Key Laboratory of Modern Optical Instrumentation
Wang, Binyu [Auteur]
Ningbo Research Institute, State Key Laboratory of Modern Optical Instrumentation
Chen, Feitong [Auteur]
Ningbo Research Institute, State Key Laboratory of Modern Optical Instrumentation
Ye, Chuang [Auteur]
Ningbo Research Institute, State Key Laboratory of Modern Optical Instrumentation
Zhang, Kai [Auteur]
Ningbo Research Institute, State Key Laboratory of Modern Optical Instrumentation
Liu, Chong [Auteur]
Ningbo Research Institute, State Key Laboratory of Modern Optical Instrumentation
Liu, Dong [Auteur]
Intelligent Optics and Photonics Research Center, Jiaxing Key Laboratory of Photonic Sensing and Intelligent Imaging
Ningbo Research Institute, State Key Laboratory of Modern Optical Instrumentation
Jamet, Cédric [Auteur]
Université du Littoral Côte d'Opale [ULCO]
Laboratoire d’Océanologie et de Géosciences (LOG) - UMR 8187 [LOG]

Titre de la revue :

Light: Science and Applications

Pagination :

261

Éditeur :

Nature Publishing Group

Date de publication :

2022-09-02

ISSN :

2095-5545

Discipline(s) HAL :

Physique [physics]/Physique [physics]/Physique Atmosphérique et Océanique [physics.ao-ph]

Résumé en anglais : [en]

Lidar techniques present a distinctive ability to resolve vertical structure of optical properties within the upper water column at both day-and night-time. However, accuracy challenges remain for existing lidar instruments ...
Lire la suite >Lidar techniques present a distinctive ability to resolve vertical structure of optical properties within the upper water column at both day-and night-time. However, accuracy challenges remain for existing lidar instruments due to the illposed nature of elastic backscatter lidar retrievals and multiple scattering. Here we demonstrate the high performance of, to the best of our knowledge, the first shipborne oceanic high-spectral-resolution lidar (HSRL) and illustrate a multiple scattering correction algorithm to rigorously address the above challenges in estimating the depth-resolved diffuse attenuation coefficient K d and the particulate backscattering coefficient b bp at 532 nm. HSRL data were collected during day-and night-time within the coastal areas of East China Sea and South China Sea, which are connected by the Taiwan Strait. Results include vertical profiles from open ocean waters to moderate turbid waters and first lidar continuous observation of diel vertical distribution of thin layers at a fixed station. The root-mean-square relative differences between the HSRL and coincident in situ measurements are 5.6% and 9.1% for K d and b bp , respectively, corresponding to an improvement of 2.7-13.5 and 4.9-44.1 times, respectively, with respect to elastic backscatter lidar methods. Shipborne oceanic HSRLs with high performance are expected to be of paramount importance for the construction of 3D map of ocean ecosystem.Lire moins >

Langue :

Anglais

Comité de lecture :

Oui

Audience :

Internationale

Vulgarisation :

Non

Collections :

• Laboratoire d'Océanologie et de Géosciences (LOG) - UMR 8187

Source :

Harvested from HAL