Deriving the Vertical Variations in the Diffuse Attenuation Coefficient of Photosynthetically Available Radiation in the North Pacific Ocean from Remote Sensing
Remote Sensing, ISSN: 2072-4292, Vol: 15, Issue: 12
2023
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Most Recent News
China University of Petroleum East China Researcher Has Provided New Study Findings on Remote Sensing (Deriving the Vertical Variations in the Diffuse Attenuation Coefficient of Photosynthetically Available Radiation in the North Pacific Ocean ...)
2023 JUN 26 (NewsRx) -- By a News Reporter-Staff News Editor at Engineering Daily News -- Data detailed on remote sensing have been presented. According
Article Description
Diffuse attenuation coefficient of photosynthetically available radiation (PAR), K, is a key product of ocean color remote sensing. Current ocean color algorithms generally detect only the average K within one optical depth, (Formula presented.). Due to the marked vertical variations of K, knowledge of (Formula presented.) is insufficient to accurately evaluate the submarine light field. By using field in situ observations, a two-step approach, based on the development of an ocean color algorithm for (Formula presented.) and the relationships between (Formula presented.) and the average K from the surface down to depth Z ((Formula presented.)), was developed to remotely estimate the vertical variations in (Formula presented.) in the North Pacific from the MODerate-resolution Imaging Spectrometer (MODIS) imagery. The root mean square difference of log((Formula presented.)) in depths within the euphotic zone was around ±0.059 (in unit of m for (Formula presented.)), which corresponded to a deviation of ±15% for the estimated (Formula presented.) and the penetration depths of PAR. Our study may provide a promising approach to detect the vertical variations of (Formula presented.) and underwater PAR distributions in the North Pacific Ocean.
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