地球与行星物理论评（中英文）2024，Vol.55Issue(3)：329-343,15.DOI:10.19975/j.dqyxx.2023-044
基于中国中东部多站流星雷达的二维风场观测研究
Two-dimensional wind field observation based on multistatic meteor radars in central and eastern China
摘要
Abstract
All-sky meteor radars have become a reliable and widely used tool for observing horizontal winds in the mesosphere and lower thermosphere(MLT)region.This provides vital data support for the study of dyna-mics in this region.Currently,meteor radars mainly operate in single-station observation mode with no horizontal resolution and can only estimate the average horizontal wind field in the meteor region.To obtain more abundant and accurate information about the atmospheric wind field in the MLT region,a multistatic meteor radar system located in Anhui,China was introduced in this study.The radar system consists of a monostatic meteor radar in-stalled in Mengcheng(33.36°N,116.49°E)and a remote receiver installed in Changfeng(31.98°N,117.22°E)at a distance of about 167 km.Compared to the monostatic meteor radar,the multistatic meteor radar system could observe 70%more forward scatter meteor echoes and offer more than 400 km×400 km horizontal observation area.Moreover,the multistatic meteor radar system provides more abundant viewing angles.This new multistatic system offers the feasibility of retrieving two-dimensional horizontal wind fields and the gradient of horizontal wind as well as estimating the divergence,relative vorticity,stretching and shearing deformation of the horizontal wind field.The multistatic meteor radar system provides more horizontal wind parameters,significantly contribut-ing to the further studies of the atmospheric dynamics process in the MLT region.In addition,multistatic meteor radar observation network upcoming in the future will realize the 3-d wind field with high spatiotemporal resolu-tion in the MLT region above central and eastern China,greatly improving our understanding of the various wave processes in the near space.关键词
流星雷达/中间层-低热层大气/大气水平风场Key words
meteor radar/mesosphere and lower thermosphere region/horizontal wind分类
地球科学引用本文复制引用
鲁茂林,易稳,曾洁,薛向辉,叶海伦,陈廷娣..基于中国中东部多站流星雷达的二维风场观测研究[J].地球与行星物理论评（中英文）,2024,55(3):329-343,15.基金项目
国家自然科学基金资助项目(42125402,42174183) （42125402,42174183）
国家关键技术研究发展计划(2022YFF0503703) （2022YFF0503703）
中国科学院B型战略重点计划(XDB41000000)Supported by the National Natural Science Foundation of China(Grant Nos.42125402,42174183),the National Key Technologies R&D Program of China(Grant No.2022YFF0503703),and the B-type Strategic Priority Program of Chinese Academy of Sciences(Grant No.XDB41000000) （XDB41000000）
