Enhancing Operational Safety during the Medium-Term Implementation of Performance Based Navigation (PBN) in African Equatorial/Low Latitude Ionosphere.

Omodele Arowolo1, Andrew O Akala2 and Elijah Oyedola Oyeyemi2, (1)NIGERIA CIVIL AVIATION AUTHORITY, COMMUNICATION AND NAVIGATION, Ikeja, Nigeria, (2)University of Lagos, Lagos, Nigeria