J. K. Burchill, J. H. Clemmons, D. J. Knudsen, M. Larsen, M. J. Nicolls, R. F. Pfaff, D. Rowland, and L. Sangalli. High-latitude E region ionosphere-thermosphere coupling: A comparative study using in situ and incoherent scatter radar observations. J. Geophys. Res., volume 117, 2012 .