E Region Coherent Echoes. High resolution observations of E-region coherent echoes using low elevation angle measurements to the north and analysis of raw data records. Geomagnetically disturbed conditions are required. Local 10 Position Coordinated radar and optical observations. Radar measurements taken in 10 directions will allow estimation of spatial gradients.
Clear weather is required.
Incoherent Scatter Coordinated Observation Days. High altitude incoherent scatter observations to determine light-ion composition. Coordinated Radar and Daysky Optical Observations. Clear weather is required.