1. NOAA Earth System Research Laboratory, Boulder, Colorado 80305, USA
2. Institute of Applied Physics, Nizhny Novgorod 603950, Russia
3. Department of Applied Mathematics, Nizhny Novgorod State Technical University, Nizhny Novgorod 603950, Russia
4. Department of Mathematics, Keele University, Keele ST5 5BG, United Kingdom
5. School of Agricultural, Computational, and Environmental Sciences, University of Southern Queensland, West St., Toowoomba, Queensland 4350, Australia