Removal of surface-reflected light for the measurement of remote-sensing reflectance from an above-surface platform SCIE SCOPUS

Cited 116 time in WEB OF SCIENCE Cited 130 time in Scopus
Title
Removal of surface-reflected light for the measurement of remote-sensing reflectance from an above-surface platform
Author(s)
Lee, ZhongPing; Ahn, Yu-Hwan; Mobley, Curtis; Arnone, Robert
Publication Year
2010-12-06
Abstract
Using hyperspectral measurements made in the field, we show that the effective sea-surface reflectance rho (defined as the ratio of the surface-reflected radiance at the specular direction corresponding to the downwelling sky radiance from one direction) varies not only for different measurement scans, but also can differ by a factor of 8 between 400 nm and 800 nm for the same scan. This means that the derived water-leaving radiance (or remote-sensing reflectance) can be highly inaccurate if a spectrally constant rho value is applied (although errors can be reduced by carefully filtering measured raw data). To remove surface-reflected light in field measurements of remote sensing reflectance, a spectral optimization approach was applied, with results compared with those from remote-sensing models and from direct measurements. The agreement from different determinations suggests that reasonable results for remote sensing reflectance of clear blue water to turbid brown water are obtainable from above-surface measurements, even under conditions of high waves. (C)2010 Optical Society of America
ISSN
1094-4087
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/3989
DOI
10.1364/OE.18.026313
Bibliographic Citation
OPTICS EXPRESS, v.18, no.25, pp.26313 - 26324, 2010
Publisher
OPTICAL SOC AMER
Subject
OCEAN COLOR; IN-WATER; OPTIMIZATION; VALIDATION; SYSTEM; MODEL
Type
Article
Language
English
Document Type
Article
Publisher
OPTICAL SOC AMER
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