Climatology of Medium-Scale Traveling Ionospheric Disturbances (MSTIDs) Observed with GPS Networks in the North African Region Oluwadare T. Seun. Institut fur Geodasie und Geoinformationstechnik, Technische Universitat Berlin,Str. des 17. Juni 135, 10623, Berlin, Germany. German Research Centre for Geosciences GFZ, Telegrafenberg, D-14473 Potsdam, Germany. oluwa@gfz-potsdam.de , temitopeseun@yahoo.co.uk Norbert Jakowski. German Aerospace Center (DLR), Institute of Communications and Navigation, Ionosphere Group, Kalkhorstweg 53, 17235 Neustrelitz, Germany Norbert.Jakowski@dlr.de Cesar E. Valladares. W.B Hanson Center for Space Sciences, University of Texas at Dallas, USA Cesar.Valladares@utdallas.edu Andrew Oke-Ovie Akala Department of Physics, University of Lagos, Akoka, Yaba, Lagos, Nigeria aakala@unilag.edu.ng Oladipo E. Abe Physics Department, Federal University Oye-Ekiti, Nigeria oladipo.abe@fuoye.edu.ng Mahdi M. Alizadeh Faculty of Geodesy and Geomatics Engineering, K.N. Toosi, University of Technology, Tehran, Iran. Institut fur Geodasie und Geoinformationstechnik, Technische Universitat Berlin,Str. des 17. Juni 135, 10623, Berlin, Germany. m.alizadeh@email.com Harald Schuh. Institut fur Geodasie und Geoinformationstechnik, Technische Universitat Berlin,Str. des 17. Juni 135, 10623, Berlin, Germany. German Research Centre for Geosciences GFZ, Telegrafenberg, D-14473 Potsdam, Germany. schuh@gfz-potsdam.de