Funding for this research was provided by:
National Key Research and Development Program of China (2020YFB0505800)
National Key Research and Development Program of China (2020YFB0505804)
National Natural Science Foundation of China (41931076)
National Natural Science Foundation of China (41874032)
National Natural Science Foundation of China (41731069)
State Key Laboratory of Geo-Information Engineering (SKLGIE2019-Z-2-2)
Article History
Received: 30 April 2021
Accepted: 13 August 2021
First Online: 25 August 2021