CEDAR: Quantitiative Assessment of Proton Aurora Using State-of-the-art Models

CEDAR：使用最先进的模型对质子极光进行定量评估

• 批准号: 0940283
• 负责人: Supriya Chakrabarti
• 金额: $ 37.35万
• 依托单位: Trustees of Boston University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2010
• 资助国家: 美国
• 起止时间: 2010-01-15 至 2013-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0940283&HistoricalAwards=false
• 关键词: CEDAR; Quantitiative; Assessment; Proton; Aurora

This is a 3-year observation and modeling research project aimed at characterizing incident, energetic protons from ground-based wide-field spectroscopic observations of H emissions, the so-called proton aurora. The modeling effort will combine a comprehensive proton transport code with a radiative transfer model to assess the contamination of H Balmer Doppler profiles from nearby proton aurora. Two high resolution ( 0.1 nm) imaging spectrographs (CESAR and HiTIES) will be deployed, first at Poker Flat and then separated by 325 km, and data from these will be combined with measurements from the Poker Flat Incoherent Scatter Radar (PFISR) as well as from the PFISR facility spectrograph to verify the theoretical predictions. This will allow for accurate derivation of mean energy and energy flux of the incoming protons from the H Doppler profiles and this result will be validated with complementary radio and space-based observations. The improved analysis technique will be employed, specifically, to quantify the energy changes of the incoming protons during active times such as during substorms. The research project will be mainly conducted by postdoctoral fellow in collaboration with and under the guidance of an international team of senior scientists with a broad range of expertise. An interdisciplinary team of modelers and experimentalists from several institutions in the United States and the United Kingdom will work together on this project.

这是一个为期3年的观测和建模研究项目，旨在从地面宽场光谱观测H发射（所谓的质子极光）中表征入射的高能质子。 建模工作将结合联合收割机一个全面的质子传输代码与辐射传输模型，以评估附近的质子极光的H巴耳末多普勒分布的污染。 两台高分辨率（0.1 nm）成像光谱仪（塞萨尔和HiTIES）将首先部署在扑克平地，然后相隔325公里，这些数据将与扑克平地非相干散射雷达（PFISR）以及PFISR设施光谱仪的测量结果相结合，以验证理论预测。这将允许从H多普勒剖面准确推导入射质子的平均能量和能量通量，这一结果将通过补充的无线电和天基观测加以验证。 改进的分析技术将专门用于量化进入质子在活跃时间（例如亚暴期间）的能量变化。 该研究项目将主要由博士后研究员与具有广泛专业知识的国际高级科学家团队合作并在其指导下进行。 来自美国和联合王国几个机构的建模人员和实验人员组成的跨学科小组将共同致力于这一项目。