Effect of crustal field rotation on ion loss rate and seasonal variation

Yingjuan Ma, University of California Los Angeles, Earth, Planetary, and Space Sciences, Los Angeles, United States, Xiaohua Fang, University of Colorado at Boulder, Boulder, United States, Steven J Schwartz, Russian Academy of Sciences, Moscow, Russia, Andrew F Nagy, University of Michigan Ann Arbor, Ann Arbor, MI, United States, Janet G Luhmann, Space Sciences Laboratory, University of California Berkeley, Berkeley, United States and Dave A Brain, University of Colorado at Boulder, Laboratory for Atmospheric and Space Physics, Boulder, United States