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.

研究人员将利用钠激光雷达测量研究中层大气的成分、结构和动力学。拟议工作分为两个部分：1）分析和解释 1998 年至 2000 年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，以及 2）热潮和重力波动量研究从 2000 年 1 月开始，使用毛伊岛空间监视站 (MSSS) 的钠激光雷达进行的观测，对波、热量和成分输运进行了观测。星火数据将用于描述波活动和波活动的季节性变化。中纬度大陆中层顶区域的动量、热量和成分通量。毛伊岛设施也将收集类似的观测结果，该设施是一个低纬度、大洋中部的地点。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，这些观测变得可行。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结果将与先前在伊利诺伊州星火和厄巴纳进行的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中的重力波动力学，并将其应用于全球变化的研究。