| 项目编号: | 1554055
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| 项目名称: | CAREER: BREEZE: Boundary-layer REsearch and Education ZonE |
| 作者: | Julie Lundquist
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| 承担单位: | University of Colorado at Boulder
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| 批准年: | 2016
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| 开始日期: | 2016-07-01
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| 结束日期: | 2021-06-30
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| 资助金额: | 331243
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| 资助来源: | US-NSF
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| 项目类别: | Continuing 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: | dissipation
; research activity
; research team
; turbulence production
; turbulence
; research project
; career award
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| 英文摘要: | The turbulent movement of air is important for the transport of heat, momentum and moisture throughout the atmosphere. Turbulence is generally thought of as a small-scale phenomenon, and the generation and dissipation of turbulence has been assumed to be within one grid cell of a numerical weather model. However, with computer models running at finer resolution, it is not clear that this assumption is valid. This award will make use of a catalog of observations of wind and turbulence from lidar (Light Detection and Ranging) systems to study turbulence dissipation. The study will have an impact on weather forecasting, with specific applications to wind power production, air quality forecasting, fog, and forest fires. As a CAREER award, there is also a very large educational and outreach component. The focus of this aspect of the award is on creating teaching materials that are visually appealing and can be used from the middle school ages on up. The research team will help to create a lesson plan and to work with teachers to ensure use of the materials. A specific focus will be on the implementation of the materials in rural, under-served Colorado classrooms.
Turbulence production and dissipation is assumed to be locally balanced in numerical models. However, as the models are run at finer resolution, this assumption no longer holds. The goal of this research project is to determine at what spatio-temporal scale the local imbalance between turbulence production and dissipation becomes important. Four research activities are planned to address this goal: (1) Quantify uncertainty in lidar estimates of dissipation, (2) Quantify the variability of dissipation through the construction of a data archive consisting of measurements classified by different meteorological and physical conditions, (3) Compare simulated dissipation variability to observations using WRF and WRF-LES modeling systems, (4) Test new parameterizations that do not assume locally balanced turbulence production and dissipation. |
| 资源类型: | 项目
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| 标识符: | http://119.78.100.158/handle/2HF3EXSE/91809
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| Appears in Collections: | 全球变化的国际研究计划
科学计划与规划
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| Recommended Citation: | |
Julie Lundquist. CAREER: BREEZE: Boundary-layer REsearch and Education ZonE. 2016-01-01.
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