Multi-instrument observation of neutral atmosphere response to the 2019 total solar eclipse at Andes Lidar Observatory in Northern Chile

The total solar eclipse on 2 July 2019 in South America passed over the Andes Lidar Observatory (30.3S, 70.7W) in Northern Chile with over 2 minutes of totality. This provided a rare opportunity of measuring the effect of solar eclipse on the neutral atmosphere. With multiple remote sensing instruments at ALO (Na wind-temperature lidar, meteor radar, airglow imagers), especially the meteor radar and the newly added daytime capability of the Na lidar, continuous measurements of the neutral atmospheric wind, temperature, and the Na density were obtained throughout the eclipse for over 36 hours. Initial results from this campaign will be presented with focus on the response of temperature, horizontal wind and Na density to this solar disturbance.