A Traveling Ionospheric Disturbance Activity Index
Anthea Coster1, Shunrong Zhang1, Larisa P Goncharenko2, Olusegun Folarin Jonah1 and Evan G Thomas3, (1)MIT Haystack Observatory, Westford, MA, United States, (2)MIT, Pepperell, MA, United States, (3)Dartmouth College, Thayer School of Engineering, Hanover, NH, United States