Retrieving 4-dimensional atmospheric boundary layer structure from surface observations and profiles over a single station

Pu, Zhaoxia¹ 

[1]Univ. of Utah, Salt Lake City, UT (United States)

关键词: Atmospheric System Research;   

DOI  :  10.2172/1222919
RP-ID  :  DOE-UTAH--SC0007060
PID  :  OSTI ID: 1222919

学科分类：环境科学（综合）

美国|英语

来源: SciTech Connect

【 摘 要 】

Most routine measurements from climate study facilities, such as the Department of Energy???s ARM SGP site, come from individual sites over a long period of time. While single-station data are very useful for many studies, it is challenging to obtain 3-dimensional spatial structures of atmospheric boundary layers that include prominent signatures of deep convection from these data. The principal objective of this project is to create realistic estimates of high-resolution (~ 1km ?? 1km horizontal grids) atmospheric boundary layer structure and the characteristics of precipitating convection. These characteristics include updraft and downdraft cumulus mass fluxes and cold pool properties over a region the size of a GCM grid column from analyses that assimilate surface mesonet observations of wind, temperature, and water vapor mixing ratio and available profiling data from single or multiple surface stations. The ultimate goal of the project is to enhance our understanding of the properties of mesoscale convective systems and also to improve their representation in analysis and numerical simulations. During the proposed period (09/15/2011???09/14/2014) and the no-cost extension period (09/15/2014???09/14/2015), significant accomplishments have been achieved relating to the stated goals. Efforts have been extended to various research and applications. Results have been published in professional journals and presented in related science team meetings and conferences. These are summarized in the report.