Knowledge Resource Center for Ecological Environment in Arid Area
| DOI | 10.2172/1321916 |
| 报告编号 | DE--SC0014487 |
| 来源ID | OSTI_ID: 1321916 |
| International Workshop on Comparing Ice Nucleation Measuring Systems 2014 | |
| Cziczo, Daniel [Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)] | |
| 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 Earth鈥檚 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 Earth鈥檚 radiative balance. Ice nucleation also initiates most of the Earth鈥檚 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 Earth鈥檚 climate and the uncertainty in this area noted by the Solomon [2007]. |
| 出版年 | 2016 |
| 报告类型 | Technical Report |
| 语种 | 英语 |
| 国家 | 美国 |
| 来源学科分类 | 54 ENVIRONMENTAL SCIENCES aerosols ; clouds ; climate |
| URL | http://www.osti.gov/scitech/servlets/purl/1321916 |
| 资源类型 | 科技报告 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/271300 |
| 推荐引用方式 GB/T 7714 | Cziczo, Daniel [Massachusetts Inst. of Technology . International Workshop on Comparing Ice Nucleation Measuring Systems 2014,2016. |
| 条目包含的文件 | 条目无相关文件。 | |||||
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