Robust approach to directly measuring water-leaving radiance in the field
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Title
- Robust approach to directly measuring water-leaving radiance in the field
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Author(s)
- Lee, ZhongPing; Pahlevan, Nima; Ahn, Yu-Hwan; Greb, Steven; O'Donnell, David
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Alternative Author(s)
- 안유환
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Publication Year
- 2013-03-10
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Abstract
- It has been a long-standing goal to precisely measure water-leaving radiance (L-w, or its equivalent property, remote-sensing reflectance) in the field, but reaching this goal is quite a challenge. This is because conventional approaches do not provide a direct measurement of L-w, but rather measure various related components and subsequently derive this core property from these components. Due to many uncontrollable factors in the measurement procedure and imprecise post-measurement processing routines, the resulting L-w is inherently associated with various levels of uncertainties. Here we present a methodology called the skylight-blocked approach (SBA) to measure L-w directly in the field, along with results obtained recently in the Laurentian Great Lakes. These results indicate that SBA can measure L-w in high precision. In particular, there is no limitation of water types for the deployment of SBA, and the requirement of post-measurement processing is minimum; thus high-quality L-w for a wide range of aquatic environments can be acquired. (C) 2013 Optical Society of America
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ISSN
- 1559-128X
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URI
- https://sciwatch.kiost.ac.kr/handle/2020.kiost/3209
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DOI
- 10.1364/AO.52.001693
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Bibliographic Citation
- APPLIED OPTICS, v.52, no.8, pp.1693 - 1701, 2013
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Publisher
- OPTICAL SOC AMER
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Subject
- REMOTE-SENSING REFLECTANCE; ABOVE-WATER; ATMOSPHERIC CORRECTION; VICARIOUS CALIBRATION; OCEAN; COASTAL; VALIDATION; REMOVAL; SEAWIFS; IMAGERY
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Type
- Article
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Language
- English
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Document Type
- Article
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