1. a School of Earth System Sciences, Kyungpook National University, Daegu, South Korea
2. b Department of Atmospheric Science, Kongju National University, Gongju, South Korea
3. c I.M. Systems Group, Inc., Rockville, and Environmental Modeling Center, National Oceanic and Atmospheric Administration/National Centers for Environmental Prediction, College Park, Maryland
4. d Earth and Space Sciences Research Group, Institute of Environmental Sciences, University of Castilla-La Mancha, Toledo, Spain