3 State Key Laboratory of Loess and Quaternary Geology (SKLLQG), Institute of Earth Environment, Chinese Academy of Sciences , Xi'an, Shaanxi Province , People's Republic of China.
4 Desert Research Institute , Reno , NV , USA.
5 Canadian Natural Resources Limited , Calgary , Alberta , Canada.
6 Integrated Environmental Analytics & Prediction Branch, Alberta Environment and Parks , Edmonton , Alberta , Canada.
7 BioSphere Solutions , Calgary , Alberta , Canada.
8 Atlantic Forest Research Collaborative, University of New Brunswick , Fredericton , New Brunswick , Canada.
9 Bay Area Air Quality Management District , San Francisco , CA , USA.