edu.ucar.opensky::articles:19305 UCAR/NCAR - Library OpenSky Support PO Box 3000 Boulder CO 80307-3000 opensky@ucar.edu http://opensky.ucar.edu/ homepage pointOfContact 2025-12-26T02:44:05.284003 ISO 19115-2 Geographic Information - Metadata - Part 2: Extensions for Imagery and Gridded Data ISO 19115-2:2009(E) https://n2t.org/ark:/85065/d7r78gzr Long-lasting negative ionospheric storm effects in low and middle latitudes during the recovery phase of the 17 March 2013 geomagnetic storm 2016-09-01T00:00:00Z publication https://n2t.org/ark:/85065/d7r78gzr https://doi.org/10.1002/2016JA022984 Yue, X. author Wang, Wenbin author Lei, J. author Burns, Alan author Zhang, Y. author Wan, W. author Liu, L. author Hu, L. author Zhao, B. author Schreiner, William S. author UCAR/NCAR - Library publisher In this paper, an ionospheric electron density reanalysis algorithm was used to generate global optimized electron density during the 17-18 March 2013 geomagnetic storm by assimilating similar to 10 low Earth orbit satellites based and similar to 450 ground global navigation satellite system receiver-based total electron content into a background ionospheric model. The reanalyzed electron density could identify the large-scale ionospheric features quite well during storm time, including the storm-enhanced density, the positive ionospheric storm effect during the initial and main phases, and the negative ionospheric storm effect during the recovery phase. The simulations from the Thermosphere Ionosphere Electrodynamics General Circulation Model can reproduce similar large-scale ionospheric disturbances as seen in the reanalysis results. Both the reanalysis and simulations show long-lasting (>17h) daytime negative storm effect over the Asia sector as well as hemispheric asymmetry during the recovery phase. Detailed analysis of the Global Ultraviolet Imager-derived O/N-2 ratio and model simulations indicate that the polar ward meridional wind disturbance, the downward ExB drift disturbance and O/N-2 depletion might be responsible for the negative storm effect. The hemispheric asymmetry is mainly caused by the geomagnetic field line configuration, which could cause hemispheric asymmetry in the O/N-2 depletion. 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 2016 American Geophysical Union. None eng geoscientificInformation