Funding for this research was provided by:
National Aeronautics and Space Administration (NNX17AH21G)
National Science Foundation (AGS-0163807)
Scripps Institutional Postdoctoral Fellowship
China Scholarship Council (201706010029)
Article History
Received: 31 August 2018
Accepted: 27 January 2019
First Online: 4 February 2019