Akshansha Chauhan, Sharda University, Uttar Pradesh, India, Rajesh Kumar, Department of Environmental Sciences, School of Earth Science, Central University of Rajasthan, Ajmer, India, Prasanjit Dash, NOAA STAR, College Park, United States and Ramesh P Singh, Indian Institute of Technology Mandi, School of Engineering, Mandi, India; School of Life and Environmental Sciences, Schmid College of Science and Technology, Chapman University, Mandi, India