1. School of Environmental and Chemical EngineeringXi'an Polytechnic University Xi'an China
2. Key Laboratory for Semi‐Arid Climate Change of the Ministry of Education, College of Atmospheric SciencesLanzhou University Lanzhou China
3. National Centre for Earth ObservationUniversity of Leeds Leeds UK
4. School of Earth and EnvironmentUniversity of Leeds Leeds UK
5. National Centre for Atmospheric ScienceUniversity of Leeds Leeds UK