Study on Dusty Plasma in the Summer Polar Mesosphere using Satellite and Radar Measurements at Eureka, Canada

Polar Mesospheric Clouds (PMCs) and Polar Mesosphere Summer Echoes (PMSEs) are direct consequences of the cold dusty plasma in the polar mesosphere. While PMCs are directly observed using optical measurements, PMSEs are coherent radar backscatter signals. However, the fundamental properties of this plasma remain poorly understood since they are highly variable, complex and influenced by both internal and external factors. Hence, statistical methods are essential to capture the underlying physics of the plasma beyond the case studies of individual events. In this work, in order to identify the strength of the relationship between PMCs and PMSEs, we perform correlative analysis for the long-term measurements of PMCs and PMSEs at Eureka (80N, 86W), Canada by the AIM-CIPS and Eureka VHF radar. We also incorporate mesospheric temperature measurements from the TIMED-SABER as well as other parameters to identify the possible factors that could influence the plasma.