Lan Jian¹, Jie Zhang², Alec Neu³, Liang Zhao⁴, Susan T Lepri⁴ and Sachiko Akiyama^1,5, (1)NASA Goddard Space Flight Center, Greenbelt, MD, United States, (2)George Mason University, Fairfax, VA, United States, (3)West Virginia University, Morgantown, WV, United States, (4)University of Michigan, Ann Arbor, MI, United States, (5)Catholic University of America, Washington, DC, United States