| 项目编号: | 1450760
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| 项目名称: | Collaborative Research: Ground-based Measurements to Constrain Aerosol-Cloud-Precipitation Interactions in West Coast United States Storms |
| 作者: | Sonia Kreidenweis
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| 承担单位: | Colorado State University
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| 批准年: | 2014
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| 开始日期: | 2015-03-01
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| 结束日期: | 2017-08-31
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| 资助金额: | USD213241
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| 资助来源: | US-NSF
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| 项目类别: | Standard Grant
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| 国家: | US
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| 语种: | 英语
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| 特色学科分类: | Geosciences - Atmospheric and Geospace Sciences
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| 英文关键词: | aerosol
; wintertime precipitation
; other aerosol type
; cloud condensation nucleus
; airborne measurement
; western u. s.
; ground measurement
; orographic precipitation
; aerosol particle
; abstractthis research
; early spring precipitation
; sierra mountain
; understanding
; western united states
; california
; west coast
; cloud microphysic community
; calwater-2
|
| 英文摘要: | Abstract
This research seeks to characterize aerosol particles acting as cloud condensation nuclei (CCN) and ice nucleating particles (INPs) during wintertime storms along the west coast of the U.S. Specifically the researchers will participate in CalWater-2/ACAPEX field campaign with a combination of ground measurements at Bodega Bay, CA and airborne instruments studying the Atmospheric River (AR) phenomena and the impact of aerosols on wintertime precipitation in the Sierra Mountains of California.
Intellectual Merit
These ground-based and in situ airborne measurements will improve our fundamental understanding of the role of biological and other aerosol types in enhancing or suppressing orographic precipitation over the western U.S. during winter. A variety of instruments will be used to directly and remotely measure these aerosols. The results should aid the cloud microphysics community through improved understanding of ice formation in clouds at temperatures warmer than -20C. This study will be conducted in collaboration with the Department of Energy (DoE) and the National Oceanic and Atmospheric Administration (NOAA) during the CalWater-2 field campaign. The ground- and ship-based data will be combined with airborne data to develop a four-dimensional view of Cloud Condensation Nuclei (CCN) and Ice Nucleating Particle (INP) concentrations. Data sets will be integrated into a description of the influences of these aerosols on winter and early spring precipitation in the Sierra Mountains of California.
Broader Impacts
This project will support the training of Ph.D. students from two universities (Colorado State University and North Carolina State University) using advanced instrumentation including confocal fluorescence microscopy and scanning electron microscopy. With the ongoing drought in the western United States this study is both timely and critical in advancing our understanding of biological and other aerosol types on wintertime precipitation in the Sierra Mountains. As a major source region of the U.S. food supply, an improved understanding of the role of these aerosols on wintertime precipitation has broad implications on the resulting spring and summer water management policy in California. |
| 资源类型: | 项目
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/95042
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| Appears in Collections: | 影响、适应和脆弱性
气候减缓与适应
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