Spatial and temporal variability in surface irradiance at ultraviolet wavelengths from ground-based observations across the United States

Zhibin Sun1, Maosi Chen1, Chelsea A Corr1, Yan-An Liu2 and Wei Gao1, (1)Colorado State University, UV-B Monitoring and Research Program, Natural Resource Ecology Laboratory, Fort Collins, CO, United States, (2)East China Normal University, Key Laboratory of Geographic Information Science (Ministry of Education), Shanghai, China