1. Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, China
2. Department of Civil and Environmental Engineering, University of Illinois, 205 North Mathews Avenue, Urbana, Illinois, United States
3. Goddard Space Flight Center, National Aeronautics and Space Administration, Greenbelt, Maryland, United States
4. Department of Physics, National Institute of Technology Calicut, Calicut 673601, India
5. Environ, 88 VilCom Circle, Suite 185, Chapel Hill, North Carolina 27514, United States
6. Construction Engineering Research Laboratory, U.S. Army Engineer Research and Development Center, 2902 Newmark Drive, Champaign, Illinois 61826-9005, United States