edu.ucar.opensky::articles:27073 UCAR/NCAR - Library OpenSky Support PO Box 3000 Boulder CO 80307-3000 opensky@ucar.edu http://opensky.ucar.edu/ homepage pointOfContact 2025-12-24T19:40:59.680458 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) https://n2t.org/ark:/85065/d7n58rj2 https://doi.org/10.5281/zenodo.7330793 https Related JournalArticle #1 The data for "Ionospheric modulation by EMIC wave driven proton precipitation: observations and simulations" Ionospheric modulation by EMIC wave-driven proton precipitation: Observations and simulations 2023-01-24T00:00:00Z publication https://n2t.org/ark:/85065/d7n58rj2 https://doi.org/10.1029/2022JA030983 Tian, X. author Yu, Y. author Gong, F. author Ma, L. author Cao, J. author Solomon, Stanley C. author Shreedevi, P. R. author Shiokawa, K. author Otsuka, Y. author Oyama, S. author Miyoshi, Y. author UCAR/NCAR - Library publisher Protons of tens of keV can be resonantly scattered by electromagnetic ion cyclotron (EMIC) waves excited in the magnetosphere, resulting in proton precipitation down to the upper atmosphere. In this study, we report for the first time the ionospheric height-dependent ionization in response to EMIC-associated isolated proton aurora (IPA) using simultaneous space-borne and ground-based measurements. On 06 March 2019, the Polar Orbiting Environmental Satellites observed significant proton precipitation in the dusk sector (MLT similar to 19), while ground-based magnetometers detected a clear signature of EMIC waves. Meanwhile, the conjugated all sky imager captured an IPA and the nearby Poker Flat incoherent scatter radar (PFISR) showed enhanced electron density in the E region, suggesting a potential consequence of the EMIC wave-driven proton precipitation. The Global Airglow model simulations confirmed the dominant impact of proton precipitation on the ionosphere and agreed well with PFISR observations. This study confirmed physical links from the magnetosphere to the ionosphere through EMIC-driven proton precipitation. UCAR/NCAR - Library OpenSky Support PO Box 3000 Boulder CO 80307-3000 opensky@ucar.edu http://opensky.ucar.edu/ homepage pointOfContact PDF Text theme Resource Type 2016-01-01T00:00:00Z publication Copyright 2024 American Geophysical Union (AGU). None eng geoscientificInformation