Interpretation of Spectral LiDAR Backscattering off the Florida Coast

被引：2
|
作者：
Montes, Martin A. [1 ,2 ,3 ]
Vuorenkoski, Anni K. [3 ]
Metzger, Ben [3 ]
Botson, Bryan [4 ]
机构：
[1] NASA, Goddard Space Flight Ctr, Ocean Biol Proc Grp, Greenbelt, MD 20771 USA
[2] Sci Syst & Applicat Inc SSAI, Lanham, MD 20706 USA
[3] Florida Atlantic Univ, Harbor Branch Oceanog Inst, Ocean Visibil & Opt Lab, Ft Pierce, FL 34946 USA
[4] Florida Atlantic Univ, Harbor Branch Oceanog Inst, Indian River Lagoon Observ, Ft Pierce, FL USA
来源：
REMOTE SENSING | 2021年 / 13卷 / 13期
关键词：
LiDAR; multiple scattering; coastal waters; inherent optical properties; ATTENUATION;
D O I：
10.3390/rs13132475
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
A multispectral backscattering LiDAR (Light detection and range) system (hereafter Oculus) was integrated into a wave glider and used to estimate the scattering order (i.e., single vs multiple collisions) of LIDAR backscattering, the water inherent optical properties (IOPs), the biogeo-chemical characteristics of particulate scatterers (i.e., relative size, composition) and their motion) on shelf waters of South East Florida. Oculus has a dual-wavelength configuration (473 and 532 nm) and two detection geometries (off- and on-axis). Characteristics of scatterers were investigated based on two complementary LiDAR-derived proxies (the Structural Dissimilarity Index and the spectral slope of LiDAR backscattering). In March 2017, field measurements showed a covariation between direct and diffuse backscattering contributions during morning hours and away from shore. LiDAR attenuation coefficients explained up to 57% of IOPs variability. The analysis of LiDAR-derived proxies suggested higher turbidity and larger particulates near the coast
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页数：18
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