| DOI: | 10.2172/1051250
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| 报告号: | DOE/ER/64570
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| 报告题名: | Parameterization and Analysis of 3-D Solar Radiative Transfer in Clouds: Final Report |
| 作者: | Jerry Y. Harrington
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| 出版年: | 2012
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| 发表日期: | 2012-09-21
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| 国家: | 美国
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| 语种: | 英语
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| 中文主题词: | 吸收
; 吸附作用
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| 主题词: | ABSORPTION
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| 英文摘要: | This document reports on the research that we have done over the course of our two-year project. The report also covers the research done on this project during a 1 year no-cost extension of the grant. Our work has had two main, inter-related thrusts: The first thrust was to characterize the response of stratocumulus cloud structure and dynamics to systematic changes in cloud infrared radiative cooling and solar heating using one-dimensional radiative transfer models. The second was to couple a three-dimensional (3-D) solar radiative transfer model to the Large Eddy Simulation (LES) model that we use to simulate stratocumulus. The purpose of the studies with 3-D radiative transfer was to examine the possible influences of 3-D photon transport on the structure, evolution, and radiative properties of stratocumulus. While 3-D radiative transport has been examined in static cloud environments, few studies have attempted to examine whether the 3-D nature of radiative absorption and emission influence the structure and evolution of stratocumulus. We undertook this dual approach because only a small number of LES simulations with the 3-D radiative transfer model are possible due to the high computational costs. Consequently, LES simulations with a 1-D radiative transfer solver were used in order to examine the portions of stratocumulus parameter space that may be most sensitive to perturbations in the radiative fields. The goal was then to explore these sensitive regions with LES using full 3-D radiative transfer. Our overall goal was to discover whether 3-D radiative processes alter cloud structure and evolution, and whether this may have any indirect implications for cloud radiative properties. In addition, we collaborated with Dr. Tamas Varni, providing model output fields for his attempt at parameterizing 3-D radiative effects for cloud models. |
| URL: | http://www.osti.gov/scitech/servlets/purl/1051250
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| Citation statistics: |
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| 资源类型: | 研究报告
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/40523
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| Appears in Collections: | 过去全球变化的重建
影响、适应和脆弱性
科学计划与规划
气候变化与战略
全球变化的国际研究计划
气候减缓与适应
气候变化事实与影响
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| 1051250.pdf（641KB） | 研究报告 | -- | 开放获取 | | View
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| Recommended Citation: | |
Jerry Y. Harrington. Parameterization and Analysis of 3-D Solar Radiative Transfer in Clouds: Final Report. 2012-01-01.
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