Songnian Li received his Ph.D. degree in Geodesy and Geomatics Engineering from the University of New Brunswick in 2002. He is a Professor in the Department of Civil Engineering, Toronto Metropolitan University, Canada. His current research interests include geospatial big data, spatiotemporal analysis, human mobility, geo-collaboration, and smart cities (digital twin). He has served as the Executive-Editor-in-Chief of Big Earth Data journal and the Co-Editor-in-Chief of the Canadian Journal of Remote Sensing. He is an ISPRS Fellow and is currently the Chair of the UN-GGIM Academic Network and a member of the Executive Committee of the Canadian Remote Sensing Society.