Study of the effects of phytoplankton morphology and vertical profile on lidar attenuated backscatter and depolarization ratio
| Autor: | Jiachen Ding, Patrick G. Stegmann, Xiaodong Zhang, Bingqiang Sun, Ping Yang |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Radiation
Materials science 010504 meteorology & atmospheric sciences Backscatter Monte Carlo method 01 natural sciences Atomic and Molecular Physics and Optics Computational physics Lidar Photosynthetically active radiation Depolarization ratio Radiative transfer Balance equation Particle Physics::Atmospheric and Oceanic Physics Spectroscopy 0105 earth and related environmental sciences |
| Zdroj: | Journal of Quantitative Spectroscopy and Radiative Transfer. 225:1-15 |
| ISSN: | 0022-4073 |
| Popis: | Propagation of a lidar beam in a coupled atmosphere-ocean model consisting of multiple atmospheric and upper oceanic layers and a rough ocean surface is studied by using a vectorized Monte Carlo radiative transfer solver optimized specifically for lidar-based remote sensing applications. The effects of assumed phytoplankton morphology variations and its vertical distribution on the lidar attenuated backscatter and depolarization ratio are studied. In this study, a phytoplankton particle is assumed to be a sphere, a sphere with a core, or a randomly distorted hexahedron with or without a core. The single-scattering properties of the nonspherical/inhomogeneous particles are computed using appropriate state-of-the-art light-scattering computational capabilities. Vertical variation of the phytoplankton distribution is derived explicitly using a PAR (photosynthetically active radiation) limited carbon biomass balance equation that is subsequently coupled with the Monte Carlo solver. |
| Databáze: | OpenAIRE |
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