| DOI: | 10.2172/1228754
|
| 报告号: | DOE-UREAD--0007233
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| 报告题名: | Final Report â Study of Shortwave Spectra in Fully 3D Environment. Synergy Between Scanning Radars and Spectral Radiation Measurements |
| 作者: | Chiu, Jui-Yuan
|
| 出版年: | 2015
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| 发表日期: | 2015-09-14
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| 总页数: | 10
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| 国家: | 美国
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| 语种: | 英语
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| 英文关键词: | ARM
; cloud
; radar
; scanning cloud radar
; retrieval
; remote sensing
; surface radiation
|
| 中文主题词: | 气溶胶
; 短波辐射
; 云
; 雷达
|
| 主题词: | AEROSOLS
; SHORTWAVE RADIATION
; CLOUDS
; RADAR
|
| 英文摘要: | ARM set out 20 years ago to âcloseâ the radiation problem, that is, to improve radiation models to the point where they could routinely predict the observed spectral radiation fluxes knowing the optical properties of the surface and of gases, clouds and aerosols in the atmosphere. Only then could such radiation models form a proper springboard for global climate model (GCM) parameterizations of spectral radiation. Sustained efforts have more or less achieved that goal with regard to longwave radiation; ASR models now routinely predict ARM spectral longwave radiances to 1â2%. Similar efforts in the shortwave have achieved far less; the successes are mainly for carefully selected 1D stratiform cloud cases. Such cases amount, even with the most optimistic interpretation, to no more than 30% of all cases at SGP. The problem has not been lack of effort but lack of appropriate instruments.The new ARM stimulus-funded instruments, with their new capabilities, will dramatically improve this situation and once again make progress possible on the shortwave problem. The new shortwave spectrometers will provide a reliable, calibrated record including the near infrared â and for other climatic regimes than SGP. The new scanning radars will provide the 3D cloud view, making it possible to tackle fully 3D situations. Thus, our main theme for the project is the understanding and closure of the surface spectral shortwave radiation problem in fully 3D cloud situations by combining the new ARM scanning radars and shortwave spectrometers with the arsenal of radiative transfer tools. |
| URL: | http://www.osti.gov/scitech/servlets/purl/1228754
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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/41773
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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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| 1228754.pdf（1674KB） | 研究报告 | -- | 开放获取 | | View
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| Recommended Citation: | |
Chiu, Jui-Yuan. Final Report â Study of Shortwave Spectra in Fully 3D Environment. Synergy Between Scanning Radars and Spectral Radiation Measurements. 2015-01-01.
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