Soojin Park¹, Sang-Woo Kim², Robert Holz³, Ralph Kuehn⁴, Edwin W Eloranta⁵, Young-Woo Kim⁶, Jin-Soo Park⁶ and Joonyoung Ahn⁶, (1)Seoul National University, School of Earth and Environmental Sciences, Seoul, Korea, Republic of (South), (2)Seoul National University, School of Earth and Environmental Sciences, Seoul, South Korea, (3)UW SSEC, Madison, WI, United States, (4)University of Wisconsin Madison, Madison, WI, United States, (5)University of Wisconsin, Madison, WI, United States, (6)NIER National Institute of Environmental Research, Incheon, South Korea