Funding for this research was provided by:
Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung (PBEZP2-137335)
Research Executive Agency (PIEF-GA-2012-331501)
Norges Forskningsråd (AFG 219165/E10)
National Aeronautics and Space Administration (NNA15BB02A, NNX16AJ64G)
Article History
Received: 12 April 2016
Revised: 8 March 2017
Accepted: 10 March 2017
First Online: 31 March 2017