Knowledge Resource Center for Ecological Environment in Arid Area
| 项目编号 | 0004265 |
| Snowfall Rate Reduction by Pollution Aerosols | |
| Randolph Borys | |
| 主持机构 | Nevada System of Higher Education, Desert Research Institute |
| 开始日期 | 2000-12-01 |
| 结束日期 | 2004-11-30 |
| 资助经费 | 411135(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, ATMOSPHERIC CHEMISTRY |
| 语种 | 英语 |
| 国家 | 美国 |
| 英文简介 | The hypothesis of this research is that anthropogenic aerosols increase the concentration of cloud droplets but decrease their average size, thus reducing the snowfall rate by decreasing the efficiency with which falling ice crystals sweep out the supercooled droplets. The approach is to monitor the chemical and physical properties of clouds and aerosols and the snowfall rate at the Storm Peak Observatory, a laboratory operated by the Desert Research Institute at an elevation of 3210 meters near Steamboat Springs, Colorado. At this altitude, the Observatory is frequently above cloud base during snow. The measured quantities include the size distributions of cloud droplets, ice crystals, and aerosol particles, the chemical composition of cloud water and snow, and the snowfall rate. A radar wind profiler and balloon sounding system complement the measurements at the ground by providing vertical profiles of wind, temperature, humidity, radar reflectivity, and Doppler spectra. This work has significant economic and demographic implications. If pollution aerosols are significantly reducing snowfall rates, this will decrease the amount of water available from snow pack, which in the West is an important source. |
| 来源学科分类 | Geosciences |
| URL | https://www.nsf.gov/awardsearch/showAward?AWD_ID=0004265 |
| 资源类型 | 项目 |
| 条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/342225 |
| 推荐引用方式 GB/T 7714 | Randolph Borys.Snowfall Rate Reduction by Pollution Aerosols.2000. |
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