Funding for this research was provided by:
Open Fund Project for the Key Laboratory of the National Bureau of Surveying and Mapping Information and Geography of China (2014NGCM03)
Article History
Received: 1 September 2021
Accepted: 11 December 2021
First Online: 27 January 2022
Declarations
:
: Not applicable.
: Not applicable.
: Not applicable.
: The authors declare no competing interests.