1. Department of Earth and Space Sciences Southern University of Science and Technology Shenzhen China
2. Department of Physics Federal University of Technology Akure Akure Nigeria
3. School of Remote Sensing and Geomatics Engineering Nanjing University of Information Science and Technology Nanjing China
4. GFZ German Research Centre for Geosciences Potsdam Germany
5. Bradley Department of Electrical and Computer Engineering Virginia Polytechnic Institute and State University Blacksburg VA USA
6. Centre for Atmospheric Research National Space Research and Development Agency Abuja Nigeria
7. International Center for Space Weather Science and Education Kyushu University Fukuoka Japan