Controlled Whistler Mode Wave Injection Experiments with the High Altitude Auroral Research Program (HAARP) Facility

利用高空极光研究计划 (HAARP) 设施进行受控惠斯勒模式波注入实验

• 批准号: 2312282
• 负责人: Mark Golkowski
• 金额: $ 37.8万
• 依托单位: University of Colorado at Denver
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2023
• 资助国家: 美国
• 起止时间: 2023-08-01 至 2026-07-31
• 项目状态: 未结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=2312282&HistoricalAwards=false
• 关键词: Controlled; Whistler; Mode; Wave; Injection

Space weather processes, driven in complicated ways by activity on the sun, can adversely affect our infrastructure in space and on the ground. This project funds the use of the HAARP facility in Alaska for space science experiments that can help us understand space weather dynamics. Specifically, the project seeks to understand how some radio waves launched into space come back stronger after they are amplified by energetic particles. The HAARP facility in Alaska is a unique research facility and the only one worldwide to perform such experiments. This project will support undergraduate and graduate students learning about space sciences and traveling to Alaska to perform pioneering experiments. High school students will also be involved in building hardware to conduct field experiments. The project promotes the progress of science in key areas of national interest and supports education and diversity in science and engineering fields. The project seeks to quantify and understand the process of whistler mode waves generating additional waves in nonlinear interactions. Since whistler mode waves of all types are a critical driver of radiation belt dynamics in the magnetosphere, knowing when, where, and how new waves are generated is necessary for assuring that models of radiation belt fluxes and space weather phenomena are accurate. The project involves ELF/VLF magnetospheric wave injection experiments to be performed at the NSF-supported High Altitude Auroral Research Program (HAARP) facility in Gakona, Alaska. The HAARP HF heater is currently the only available source of controlled ELF/VLF waves available to scientists for magnetospheric wave injection. Ground observations in the ELF/VLF band within 100 km of the HAARP facility will be used to rigorously investigate nonlinear whistler mode phenomena in the inner magnetosphere, and valuable D-region diagnostic data will also be obtained. The principal investigator (PI) has direct experience with these types of experiments going back to his doctoral thesis and has participated in previous HAARP facility campaigns. The experiments leverage the unique capabilities of the HAARP facility and knowledge gained from past experiments to test and expand recent theories on nonlinear whistler mode wave interactions.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.

太空天气过程以复杂的方式通过在太阳上的活动驱动，可能会对我们在太空和地面上的基础设施产生不利影响。 该项目为阿拉斯加的HAARP设施用于太空科学实验提供了资金，这些实验可以帮助我们了解太空天气动态。 具体而言，该项目试图了解某些无线电波如何通过充满活力的粒子扩大后会更强大。 阿拉斯加的HAARP设施是一个独特的研究机构，也是全球唯一进行此类实验的一个。 该项目将支持本科生和研究生学习太空科学并前往阿拉斯加进行开拓性实验。 高中生还将参与建立硬件以进行现场实验。 该项目促进了国家利益关键领域的科学进步，并支持科学与工程领域的教育和多样性。 该项目旨在量化和理解惠斯勒模式波的过程，在非线性相互作用中产生其他波。 由于所有类型的惠斯勒模式波是磁层中辐射带动态的关键驱动力，因此知道何时，何处以及如何生成新的波，以确保辐射带通量和空间天气现象的模型准确。 该项目涉及将在阿拉斯加加科纳（Gakona）的NSF支持的高海拔极光研究计划（HAARP）设施上进行的ELF/VLF磁层喷射实验。 HAARP HF加热器目前是科学家可用于磁层波注入的受控精灵/VLF波的唯一可用来源。 HAARP设施100公里以内的ELF/VLF带中的地面观测将用于严格研究内部磁层中的非线性惠斯勒模式现象，还将获得有价值的D区域诊断数据。 首席调查员（PI）在这些类型的实验中具有直接的经验，可以追溯到他的博士学位论文，并参加了以前的HAARP设施运动。 这些实验利用了HAARP设施的独特功能以及从过去的实验中获得的知识，以测试和扩展非线性惠斯勒模式波浪相互作用的最新理论。该奖项反映了NSF的法定任务，并被认为是值得通过基金会的知识分子优点和更广泛影响的审查标准来通过评估来支持的。