Collaborative Research: SNOWIE: Seeded and Natural Orographic Wintertime clouds: the Idaho Experiment

合作研究：SNOWIE：种子和自然地形冬季云：爱达荷州实验

• 批准号: 1546939
• 负责人: Robert Rauber
• 金额: $ 50.47万
• 依托单位: University of Illinois at Urbana-Champaign
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2016
• 资助国家: 美国
• 起止时间: 2016-09-01 至 2020-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1546939&HistoricalAwards=false
• 关键词: Collaborative; Research; SNOWIE; Seeded; Natural

This award is for an observational and modeling campaign that will address the impact of cloud seeding on orographic winter precipitation. There is a lack of concrete evidence that cloud seeding has the intended impact of increasing precipitation, yet several states in the western US have conducted seeding operations over many years. With advanced observational tools and computer modeling the researchers involved in this project believe that they can build the scientific foundation for weather modification as a tool for precipitation enhancement. The researchers will heavily instrument the area around the Idaho Power Company's seeding operations in the Payette Mountains to collect data on the effectiveness of these activities. This award represents a public/private partnership that has the potential to improve the viability of the cloud seeding operations and has implications for the water-hungry populations in the western US. Multiple graduate and undergraduate students would be involved in the field work and data analysis, ensuring the development of the next generation of atmospheric scientists. The Seeded and Natural Orographic Wintertime clouds: the Idaho Experiment (SNOWIE) field campaign will take place in early 2017 in the Payette Mountains of Idaho. The main observational assets that will be used are the University of Wyoming King Air research aircraft with in-situ and remote sensing instruments, the CSWR Doppler on Wheels mobile radars, and a host of ground-based remote sensing and in-situ precipitation sensors. The overall goals of the project are to understanding the natural dynamical and microphysical processes by which precipitation forms and evolves within orographic winter storms and to determine the physical processes by which cloud seeding with silver iodide (AgI), either from ground generators or aircraft, impacts the amount and spatial distribution of snow falling across a river basin. The core scientific objective of the proposal are to: 1) Evaluate the role of mesoscale and microscale dynamics and of the underlying terrain in the formation, growth, and fallout of natural ice crystals in winter storms through observations, 2) Investigate how the natural snow growth process is altered as a result of airborne AgI seeding through both observations and model simulations, and 3) Evaluate the effects of ground seeding on snowfall amount and distribution.

该奖项是针对观察和建模运动，该活动将解决云种子对地形冬季降水的影响。 缺乏具体的证据表明，云种子的降水量增加了预期的影响，但是美国西部的几个州多年来进行了播种作业。 通过高级观察工具和计算机建模，参与该项目的研究人员可以相信，他们可以为天气修改建立科学基础，作为增强降水量的工具。 研究人员将大力启动爱达荷州电力公司在Payette山区的播种作业周围的区域，以收集有关这些活动有效性的数据。 该奖项代表了一种公共/私人合作伙伴关系，有可能提高云种子作战的生存能力，并对美国西部的渴望水的人口产生影响。 多个毕业生和本科生将参与现场工作和数据分析，以确保下一代大气科学家的发展。 种子和自然地形冬季云：爱达荷州实验（Snowie）田野运动将于2017年初在爱达荷州的帕佩特山脉举行。 将使用的主要观察资产是怀俄明大学国王空中研究飞机，带有原位和遥感仪器，车轮移动雷达上的CSWR多普勒，以及许多基于地面的遥感和原位降水传感器。 该项目的总体目标是了解降水形成并在地形冬季风暴中形成和演变的自然动力学和微物理过程，并确定从地面发生器或飞机中云播种（AGI）的物理过程，从而影响了地面生成器或飞机，从而影响了散落河流流量的雪的数量和空间分布。 该提案的核心科学目标是：1）评估中尺度和显微镜动态的作用以及潜在的地形在冬季风暴中天然冰晶体在冬季风暴中的形成，生长和后果中的作用，2）研究如何通过对空中质量播种和模型的分布来播种和3）进行量的播种和3）研究对空气中的Agi播种的结果，并将其产生的范围进行了分配和3）的范围。