Oceanographic Lidar in the Study of Marine Systems

Dear Colleagues,

In recent decades, passive ocean color observations have expanded and refined our understanding of global plankton ecosystems. However, passive measurements are sensitive to only the very near-surface layer, providing no information on vertical structure. Specifically, the measured property is a weighted–integrated value over a relatively shallow depth, it provides no information during the night, and retrievals are compromised by clouds, absorbing aerosols, and low sun zenith angles. Additionally, the traditional way to detect the vertical structure is mainly through shipboard discrete observations or Bio-Argos, which require considerable time to cover a limited area. These limitations can be addressed by active LiDAR technology. Active LiDAR measurements could provide depth-resolved values of ocean phytoplankton properties both during daytime and nighttime. With new vertically resolved and diurnal continuous measurements, LiDAR can provide new insights into seawater bio-optical vertical structure, which will enhance our understanding of biogeochemical processes.

This Special Issue aims to bring some of the leading scholars in the fields of LiDAR remote sensing, ocean optics, and marine biochemists to describe current and new active or passive remote sensing technologies (in situ, ship-based, airborne, and satellite), and collect the recent achievements of active and passive ocean optical remote sensing in recent years.

This Special Issue welcomes:

• History or review of oceanographic LiDAR;
• Multiple scattering LiDAR signal simulation;
• Development of new algorithms of oceanographic LiDAR remote sensing;
• Evaluation of oceanographic LiDAR inversion algorithms;
• Applications of LiDAR techniques to retrieve profiles of biogeochemical parameters;
• Applications of LiDAR techniques for plankton diurnal variation;
• Mie scattering LiDAR;
• HSRL LiDAR;
• Fluorescence LiDAR;
• Raman scattering LiDAR;
• Imaging LiDAR;
• Photon-counting LiDAR;
• Brillouin scattering LiDAR;
• LiDAR remote sensing of aerosol or winds above ocean;
• LiDAR bathymetry;
• Synergy of active and passive remote sensing;
• Ground-based, ship-based, airborne, and space-borne LiDAR (CALIPO, ICEsat2, etc.);
• Potential of new space-borne ocean LiDAR;
• Any other issues related to remote sensing of seawater vertical structure (glider or bio-Argo, etc.) in the context of LiDAR measurements.

Dr. Peng Chen
Dr. Cédric Jamet
Prof. Dr. Junwu Tang
Dr. Martin A. Montes
Guest Editors

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