Toward a Further Understanding and Improved Forecasting of Coastal Quasi-linear Convective Systems

GSTDTAP

项目编号	1514115
	Toward a Further Understanding and Improved Forecasting of Coastal Quasi-linear Convective Systems
	Kelly Lombardo
主持机构	University of Connecticut
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	203335(USD)
国家	美国
语种	英语
英文摘要	There has been a considerable amount of study about thunderstorm complexes and how they intensify and sustain themselves over the continental United States. Less research has been conducted on how those complexes interact with the cooler, more stable air of the marine atmospheric boundary layer along coastal regions. This study will consist of numerical model simulations of thunderstorms as they move offshore. The importance of this research lies in the fact that these types of thunderstorm complexes contribute to a significant portion of severe weather reports in heavily populated coastal areas of the Mid-Atlantic and Northeastern United States. The main outcome of this project will be an understanding of the factors that lead to the decay of the thunderstorms near the shoreline, survival of the storms until just offshore, or whether the systems can sustain themselves well out into the ocean. The lead researcher will interact with the National Weather Service and other government and private entities to ensure that the knowledge is transferred to decision-makers. This project will also contribute to the future scientific workforce through the training of a graduate student. The researcher plans to improve understanding and prediction of evolving quasi-linear convective systems (QLCS) as they move offshore from inland regions and interact with the marine atmospheric boundary layer (MABL) over coastal waters. The project will systematically study the storm scale physical processes through idealized numerical modeling using a cloud resolving model. The magnitude and depth of the vertical wind shear, the strength of the diabatically generated cold pool associated with the convective storm, and the structure of the sea breeze-MABL boundary will be altered in the suite of idealized numerical sensitivity tests. Some of the scientific questions that motivate the study include: Is the low- or mid-level shear more influential on the evolution of the QLCS? What is the source region of the air being ingested into the QLCS? How do the QLCS characteristics change as the system interacts with the MABL boundary and as it moves offshore?
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/68169
专题	环境与发展全球科技态势
推荐引用方式 GB/T 7714	Kelly Lombardo.Toward a Further Understanding and Improved Forecasting of Coastal Quasi-linear Convective Systems.2015.