Validation of Satellite-Retrieved Oceanic Inherent Optical Properties: Proposed Two-Color Elastic Backscatter Lidar and Retrieval Theory
Applied Optics, Vol. 42, Issue 36, pp. 7197-7201 (2003)
http://dx.doi.org/10.1364/AO.42.007197
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Abstract
Recent radiative transfer models show that: (1) regardless of elastic lidar receiver field of view (FOV), at vanishing lidar depth the lidar-derived attenuation coefficient klidar → a, where a is the total absorption coefficient per meter of depth; and (2) for a wide FOV as the lidar sensing depth approaches some large value (depending on water type), klidar → Kd, where Kd is the diffuse attenuation for downwelling irradiance. As a result, it is shown that a time-resolved, dual-wavelength-laser, elastic-backscattering lidar can retrieve the three principal oceanic optical properties: (1) the absorption coefficient of phytoplankton aph, (2) the absorption coefficient of chromophoric dissolved organic matter (CDOM) aCDOM, and (3) the nonwater total constituent backscattering coefficient bbt. The lidar-retrieved aph, aCDOM, and bbt inherent optical properties can be used to validate corresponding satellite-derived products such as those from terra moderate-resolution imaging spectroradiometer (MODIS), Aqua MODIS, Sea-viewing Wide Field-of-view Sensor, (SeaWiFS), and other ocean color sensors.
© 2003 Optical Society of America
OCIS Codes
(010.4450) Atmospheric and oceanic optics : Oceanic optics
(120.0280) Instrumentation, measurement, and metrology : Remote sensing and sensors
(280.3420) Remote sensing and sensors : Laser sensors
(280.3640) Remote sensing and sensors : Lidar
(300.2530) Spectroscopy : Fluorescence, laser-induced
(300.6360) Spectroscopy : Spectroscopy, laser
Citation
Frank E. Hoge, "Validation of Satellite-Retrieved Oceanic Inherent Optical Properties: Proposed Two-Color Elastic Backscatter Lidar and Retrieval Theory," Appl. Opt. 42, 7197-7201 (2003)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-42-36-7197
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