Collaborative Research: CEDAR: Identifying Sources of Mid-latitude Traveling Ionospheric Disturbances

GSTDTAP

项目编号	1452329
	Collaborative Research: CEDAR: Identifying Sources of Mid-latitude Traveling Ionospheric Disturbances
	Sharon Vadas
主持机构	NorthWest Research Associates, Incorporated
项目开始年	2015
	2015-07-01
项目结束日期	2018-06-30
资助机构	US-NSF
项目类别	Continuing grant
项目经费	2800(USD)
国家	美国
语种	英语
英文摘要	Gravity waves (GWs) originating from lower atmospheric sources can lead to large accelerations of the background flow through wave dissipation or breaking. The accelerations produce secondary GWs with longer wavelengths, allowing them to propagate farther upward into the ionosphere. Here, through interaction with the ionospheric plasma, they are visible in the form of optical signatures in red line (630 nm) images, and are often referred to as traveling ionospheric disturbances (TIDs). A broad array of optical imagers will be used to triangulate the lower atmospheric sources for F region GWs, quantifying the GWs by numerically modeling the same optical signatures, and then using this quantification to ray-trace the secondary GWs to reveal their altitude profile of momentum deposition. This effort will connect two critical points on the coupled path: from the lower atmospheric source to momentum deposition in the mid to upper thermosphere. This project will include outreach to students at rural high schools where the instruments will be deployed. It will also provide undergraduate students opportunities to participate in data analysis and interpretation.
来源学科分类	Geosciences - Atmospheric and Geospace Sciences
文献类型	项目
条目标识符	http://119.78.100.173/C666/handle/2XK7JSWQ/68107
专题	环境与发展全球科技态势
推荐引用方式 GB/T 7714	Sharon Vadas.Collaborative Research: CEDAR: Identifying Sources of Mid-latitude Traveling Ionospheric Disturbances.2015.