Qihao Weng is a professor of geography at Indiana State University and an expert in remote sensing and geographic information science. He has authored several books and numerous scientific papers on these topics.

One of his notable works is the book "Remote Sensing and GIS Integration: Theories, Methods, and Applications", which provides an overview of the fundamental principles and practical applications of remote sensing and geographic information systems (GIS). The book covers a wide range of topics, including remote sensing data acquisition and processing, image interpretation and classification, spatial analysis, and GIS database design and management.

Another important book by Weng is "Scale Issues in Remote Sensing", which explores the challenges of analyzing remote sensing data at different scales. The book covers topics such as scale-dependent effects on image interpretation and analysis, multiscale data integration, and scaling laws and fractal geometry in remote sensing.

Weng has also written extensively on the applications of remote sensing and GIS in various fields, including urban planning and environmental management. His book "Remote Sensing for Sustainable Land Use Management" focuses on the use of remote sensing and GIS to monitor and manage land use changes and their impacts on the environment and society.

In addition to his research and writing, Weng is also actively involved in teaching and mentoring students in the field of remote sensing and GIS. He has received several awards and honors for his contributions to the field, including the prestigious American Society for Photogrammetry and Remote Sensing (ASPRS) Fellow award.

Overall, Qihao Weng is a highly respected and influential figure in the field of remote sensing and GIS, and his contributions have helped to advance our understanding and use of these technologies in a wide range of applications.