On the accurate estimation of gap fraction during daytime with digital cover photography
Yorum Hwang, Seoul National University, Department of Landscape Architecture and Rural Systems Engineering, Seoul, Korea, Republic of (South), Youngryel Ryu, Seoul National University, Department of Landscape Architecture and Rural Systems Engineering, Seoul, South Korea, Hyungsuk Kimm, University of Illinois at Urbana-Champaign, Department of Natural Resources and Environmental Sciences, Urbana, United States, Craig Macfarlane, CSIRO Land and Water Flagship, Private Bag No. 5, Wembley,WA6917, Australia, Mait Lang, Tartu Observatory, 61602 Tõravere, Tartu, Estonia and Oliver Sonnentag, University of Montreal, Geography, Montreal, QC, Canada
