Funding for this research was provided by:
Integrated Research Program for Advancing Climate Models (TOUGOU program) of the Ministry of Education, Culture, Sports, Science and Technology (MEXT), Japan (JPMXD0717935457, JPMXD0717935457)
Received: 3 March 2020
Accepted: 16 October 2020
First Online: 9 November 2020
: The authors declare that they have no competing interest.