| DOI: | 10.2172/1052588
|
| 报告号: | DOE/SC-ARM/TR-103
|
| 报告题名: | Cloud Condensation Nuclei Profile Value-Added Product |
| 作者: | McFarlane, S; Sivaraman, C; Ghan, S
|
| 出版年: | 2012
|
| 发表日期: | 2012-10-08
|
| 国家: | 美国
|
| 语种: | 英语
|
| 中文主题词: | 气溶胶消光
; 云凝结核
; 冷凝
; 凝结
|
| 主题词: | AEROSOL EXTINCTION
; CLOUD CONDENSATION NUCLEI
; CONDENSATION
|
| 英文摘要: | The cloud condensation nuclei (CCN) concentration at cloud base is the most relevant measure of the aerosol that influences droplet formation in clouds. Since the CCN concentration depends on supersaturation, a more general measure of the CCN concentration is the CCN spectrum (values at multiple supersaturations). The CCN spectrum is now measured at the surface at several fixed ARM sites and by the ARM Mobile Facility (AMF), but is not measured at the cloud base. Rather than rely on expensive aircraft measurements for all studies of aerosol effects on clouds, a way to project CCN measurements at the surface to cloud base is needed. Remote sensing of aerosol extinction provides information about the vertical profile of the aerosol, but cannot be directly related to the CCN concentration because the aerosol extinction is strongly influenced by humidification, particularly near cloud base. Ghan and Collins (2004) and Ghan et al. (2006) propose a method to remove the influence of humidification from the extinction profiles and tie the âdry extinctionâ retrieval to the surface CCN concentration, thus estimating the CCN profile. This methodology has been implemented as the CCN Profile (CCNPROF) value-added product (VAP). |
| URL: | http://www.osti.gov/scitech/servlets/purl/1052588
|
| Citation statistics: |
|
| 资源类型: | 研究报告
|
| 标识符: | http://119.78.100.158/handle/2HF3EXSE/40497
|
| 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
|
| File Name/ File Size |
Content Type |
Version |
Access |
License |
|
|---|
| 1052588.pdf（1182KB） | 研究报告 | -- | 开放获取 | | View
Download
|
|
| Recommended Citation: | |
McFarlane, S,Sivaraman, C,Ghan, S. Cloud Condensation Nuclei Profile Value-Added Product. 2012-01-01.
|
|
|