| DOI: | 10.2172/1321916
|
| 报告号: | DE--SC0014487
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| 报告题名: | International Workshop on Comparing Ice Nucleation Measuring Systems 2014 |
| 作者: | Cziczo, Daniel
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| 出版年: | 2016
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| 发表日期: | 2016-04-30
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| 总页数: | 4
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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: | aerosols
; clouds
; climate
|
| 中文主题词: | 气溶胶
; 铅
; 海拔
; 云
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| 主题词: | AEROSOLS
; LEAD
; ALTITUDE
; CLOUDS
|
| 英文摘要: | The relationship of ambient aerosol particles to the formation of ice-containing clouds is one of the largest uncertainties in understanding the Earthâs climate. The uncertainty is due to several poorly understood processes and measurements including, but not limited to: (1) the microphysics of how particles nucleate ice, (2) the number of ice forming particles as a function of atmospheric properties such as temperature and relative humidity, (3) the atmospheric distribution of ice forming particles and (4) the role of anthropogenic activities in producing or changing the behavior of ice forming particles. The ways in which ice forming particles can impact climate is also multi-faceted. More ice forming particles can lead to clouds with more ice crystals and different optical properties than clouds with less ice forming particles. More effective ice forming particles can lead to ice at higher temperature and/or lower saturation, resulting in clouds at lower altitude or latitude which also changes the Earthâs radiative balance. Ice nucleation also initiates most of the Earthâs precipitation, even in the mid- and low-latitudes, since cloud-top temperatures are often below freezing. The limited measurements and lack of understanding directly translates to restrictions in our ability to model atmospheric ice formation and project changes into the future. The importance of ice nucleation research is further exemplified by Figure 1 which shows the publications per decade and citations per year on the topic of ice nucleation [DeMott et al., 2011]. After a lull at the end of the last century, there has been a dramatic increase in both publications and citations related to ice nucleation; this directly corresponds to the importance of ice nucleation on the Earthâs climate and the uncertainty in this area noted by the Solomon [2007]. |
| URL: | http://www.osti.gov/scitech/servlets/purl/1321916
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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/42144
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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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| 1321916.pdf（193KB） | 研究报告 | -- | 开放获取 | | View
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| Recommended Citation: | |
Cziczo, Daniel. International Workshop on Comparing Ice Nucleation Measuring Systems 2014. 2016-01-01.
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