Current Density Reduction Ahead of Dipolarization Fronts

San Lu, University of California Los Angeles, Department of Earth, Planetary, and Space Sciences and Institute of Geophysics and Planetary Physics, Los Angeles, CA, United States, Anton Artemyev, University of California Los Angeles, Department of Earth, Planetary, and Space Sciences, Los Angeles, United States, Vassilis Angelopoulos, University of California Los Angeles, Earth, Planetary, and Space Sciences, Los Angeles, CA, United States, Quanming Lu, University of Science and Technology of China, Department of Geophysics and Planetary Science, Hefei, China and Jiang Liu, University of California Los Angeles, Los Angeles, CA, United States