State-of-Art Empirical Modeling of Ring Current Plasma Pressure
						 
					
					
					
	Chao Yue1,2, Qianli Ma3, Chih-Ping Wang4, Jacob Bortnik4 and Richard M Thorne4, (1)University of California Los Angeles, Los Angeles, United States, (2)University Corporation for Atmospheric Research, Boulder, United States, (3)Boston University, Boston, MA, United States, (4)University of California Los Angeles, Los Angeles, CA, United States