Polar cap hot patches: Enhanced density structures different from the classical patches in the ionosphere

Q. H. Zhang^*, Y. Z. Ma, P. T. Jayachandran, J. Moen, M. Lockwood, Y. L. Zhang, J. C. Foster, S. R. Zhang, Y. Wang, D. R. Themens, B. C. Zhang, Z. Y. Xing

^*Corresponding author for this work