Collaborative Research: WINTRE-MIX: Winter Precipitation Type Research Multi-scale Experiment

合作研究：WINTRE-MIX：冬季降水类型研究多尺度实验

• 批准号: 2114011
• 负责人: Katja Friedrich
• 金额: $ 182.76万
• 依托单位: University of Colorado at Boulder
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2021
• 资助国家: 美国
• 起止时间: 2021-09-01 至 2024-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2114011&HistoricalAwards=false
• 关键词: Collaborative; Research; WINTRE; MIX; Winter

During near-freezing weather conditions, a diversity of surface precipitation types are possible, including: rain, drizzle, freezing rain, freezing drizzle, wet snow, ice pellets, and snow. Such near freezing precipitation affects wide swaths of the United States and Canada, impacting aviation, road transportation, power generation and distribution, winter recreation, ecology, and hydrology. This award is for a field experiment, named the Winter Precipitation Type Research Multi-scale Experiment (WINTRE-MIX) with the overarching goal of improving understanding of how a variety of processes influence the variability and predictability of the type and amount of precipitation that falls during winter weather events. The project has direct societal impact through the potential for improved forecasting of these events. Additionally, the project will have significant student involvement, public outreach events, and citizen science participation.The WINTRE-MIX campaign will be conducted in southern Quebec, Canada and northern NY and VT in the United States. The Canadian National Research Council Convair-580 research aircraft and the University of Illinois mobile radars will be deployed along with a host of surface-based instrumentation in February and March of 2022 to make observations that can be used to determine the thermodynamic, dynamic, and microphysical processes that interact to determine near-freezing precipitation type. More specifically, the project has three overarching scientific questions that will be addressed using observations, analysis, and modeling: 1) How do mesoscale dynamics modulate near-freezing precipitation, 2) How do microscale processes modulate near-freezing precipitation, and 3) How do multi-scale processes combine to determine the predictability of near-freezing precipitation?This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.

在近乎冻结的天气条件下，可能会有多种表面降水类型，包括：雨，毛毛雨，冻雨，冻伤毛毛雨，湿雪，冰颗粒和雪。如此近乎冻结的降水会影响美国和加拿大的广泛片段，从而影响航空，道路运输，发电和分销，冬季娱乐，生态和水文学。 该奖项是针对现场实验的，称为冬季降水类型研究多尺度实验（Wintre-mix），其总体目标是提高对各种过程如何影响冬季天气事件中降水类型和降水量的可变性和可预测性的理解。 该项目通过改善对这些事件的预测的潜力具有直接的社会影响。 此外，该项目将有大量的学生参与，公共宣传活动和公民科学参与。Wintre-Mix运动将在魁北克南部，加拿大，纽约州北部和美国VT进行。 加拿大国家研究委员会580研究飞机和伊利诺伊大学的移动雷达将于2022年2月和3月一起部署许多基于表面的仪器，以进行观察，这些观察值可用于确定热力学，动态和微物理过程，以确定几乎相互融合的阳性类型。 More specifically, the project has three overarching scientific questions that will be addressed using observations, analysis, and modeling: 1) How do mesoscale dynamics modulate near-freezing precipitation, 2) How do microscale processes modulate near-freezing precipitation, and 3) How do multi-scale processes combine to determine the predictability of near-freezing precipitation?This award reflects NSF's statutory mission and has been deemed worthy of通过基金会的智力优点和更广泛的影响评估标准通过评估来支持。