权益分类	功能权益	普通用户	{{item.name}}会员
{{category.name}}	{{benefitItem.name}}

MAUI/MALT: Lidar Studies of Middle Atmosphere Composition, Structure, and Dynamics

MAUI/MALT：中层大气成分、结构和动力学的激光雷达研究

基本信息

批准号：
0003198
负责人：
Gary Swenson
金额：
$ 83.13万
依托单位：
University of Illinois at Urbana-Champaign
依托单位国家：
美国
项目类别：
Continuing Grant
财政年份：
2001
资助国家：
美国
起止时间：
2001-03-15 至 2004-08-31
项目状态：
已结题

来源：
https://www.nsf.gov/awardsearch/showAward?AWD_ID=0003198&HistoricalAwards=false
关键词：
MAUI MALT Lidar Studies Middle

项目摘要

The investigators will study middle atmosphere composition, structure and dynamics using sodium lidar measurements. There are two parts to the proposed effort: 1) analysis and interpretation of the wind, temperature, and sodium density data obtained at the Starfire Optical Range in New Mexico between 1998 and 2000, and 2) the study of thermal tides and gravity wave momentum, heat, and constituent transport using observations made by a sodium lidar at the Maui Space Surveillance Site (MSSS) beginning in January 2000. The Starfire data will be used to characterize the seasonal variations in wave activity and momentum, heat, and constituent fluxes in the mesopause region at a mid-latitude continental site. A similar set of observations will also be collected at the Maui facility, a low-latitude, mid-ocean site. These observations are made feasible by using the 3.7-meter steerable telescope at Maui as the lidar receiver. Both nighttime and daytime observations will be conducted to study tidal perturbation of winds and temperature and to study gravity wave transport processes and their seasonal variations. The low-latitude tide and flux observations will be compared to similar mid latitude data from previous measurements made at Starfire and Urbana, Illinois. The study will contribute to knowledge about gravity wave dynamics in the middle atmosphere with application to studies of global change.

研究人员将使用钠激光雷达测量来研究中层大气的组成、结构和动力学。拟议的努力有两个部分：1）对1998年至2000年期间在新墨西哥州星火光学靶场获得的风、温度和钠密度数据进行分析和解释，2）对热潮汐和重力波动量、热量、和成分运输使用的意见，钠激光雷达在毛伊岛空间监视网站（MSSS）在2000年1月开始。 Starfire数据将用于描述中纬度大陆站点中层顶区域波活动和动量、热量和组分通量的季节性变化。毛伊岛设施也将收集类似的一组观测数据，毛伊岛设施是一个低纬度的中海洋站点。通过使用毛伊岛的3.7米可操纵望远镜作为激光雷达接收器，这些观测是可行的。将进行夜间和白天观测，以研究风和温度的潮汐扰动，并研究重力波传输过程及其季节变化。低纬度潮汐和通量观测将与以前在伊利诺斯州星火和厄巴纳测量的类似中纬度数据进行比较。这项研究将有助于了解中层大气的重力波动力学，并将其应用于全球变化研究。