Knowledge Resource Center for Ecological Environment in Arid Area
| 项目编号 | 0342618 |
| Cloud Condensation Nuclei (CCN) and Large Nuclei in Rain In Cumulus over the Ocean (RICO) | |
| James Hudson | |
| 主持机构 | Nevada System of Higher Education, Desert Research Institute |
| 开始日期 | 2004-07-01 |
| 结束日期 | 2011-06-30 |
| 资助经费 | 446597(USD) |
| 项目类别 | Continuing Grant |
| 资助机构 | US-NSF（美国国家科学基金会） |
| 项目所属计划 | PHYSICAL METEOROLOGY, PHYSICAL & DYNAMIC METEOROLOGY |
| 语种 | 英语 |
| 国家 | 美国 |
| 英文简介 | The goals of this project are to measure cloud condensation nuclei (CCN) in air ingested into trade wind Cumulus clouds and use those measurements to consider how the CCN population influences the development of rain in those clouds. New features of the instrumentation will allow the measurements to extend to low supersaturation (large particle size), an important extension because such particles are thought to be important in warm-rain initiation. The measurements will also be made by different instruments providing different growth times for the droplets that form on the CCN to investigate if the limited growth time available in the instrument biases the measurements. The investigators will also study the possible role of occasional Saharan-dust episodes in accelerating rain formation. The project is part of the "Rain in Cumulus over the Ocean" (RICO) experiment, a multi-investigator study of warm rain formation and the nature of trade wind Cumulus clouds. The CCN measurements are a critical component of the broader experiment because, as the key input determining the initial droplet size distribution, they are needed by many of the other investigators in their studies of specific hypotheses regarding the warm-rain process. Other broad impacts of the project include likely resolution of an instrumentation controversy affecting many other microphysical studies, better understanding of rain formation as it influences weather and climate, and graduate student training in this area of research. |
| 来源学科分类 | Geosciences |
| URL | https://www.nsf.gov/awardsearch/showAward?AWD_ID=0342618 |
| 资源类型 | 项目 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/342339 |
| 推荐引用方式 GB/T 7714 | James Hudson.Cloud Condensation Nuclei (CCN) and Large Nuclei in Rain In Cumulus over the Ocean (RICO).2004. |
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