On Understanding the Latitudinal and Longitudinal Differences in Polar Mesosphere Summer Echoes

该奖项支持对极地中间层夏季回波(PMSE)现象的研究，方法是将Resolute Bay和Svalbard的流星雷达测量结果与位于阿拉斯加的其他中频雷达测量结果以及位于欧洲部分的三部位于78 N、69 N和68 N纬度的雷达进行比较。从两个站的雷达测量得出的中层顶风、回声功率强度和中层顶温度估计值将进行比较，以便同时进行操作。这项研究的主要动机是研究这样一个问题，即寒冷的中层顶温度是否是产生这些回声的唯一因素。目前的初步证据表明，中层顶水汽组成的纬度和经度差异也可能是一个因素。这些测量将辅之以与在南极洲麦克默多和秘鲁马丘比丘遗址(S 62号，西经58度)进行的观测有关的研究。

This award supports the study of the phenomenon of polar mesosphere summer echoes (PMSE) through comparison of meteor radar measurements from Resolute Bay and Svalbard with additional MF radar measurements from stations located in Alaska and three radars located in the European sector at 78 N, 69 N, and 68 N latitudes. The mesopause winds, echo power strengths, and mesopause temperature estimates derived from these radar measurements at both stations would be compared for simultaneous operations. The primary motivation for this research is to examine the question as to whether cold mesopause temperatures are the only factor that underlies the production of these echoes. Current preliminary evidence suggests that latitudinal and longitudinal differences in mesopause water vapor composition might also be a factor. These measurements would be supplemented with studies related to observations obtained in the Antarctica at McMurdo and at the Peruvian Machu Picchu site (62 S, 58 W).