Search Results - "Aa, Ercha"

Statistical Analysis of Equatorial Plasma Irregularities Retrieved From Swarm 2013–2019 Observations by Aa, Ercha, Zou, Shasha, Liu, Siqing

“…In this study, we present a statistical analysis of equatorial plasma irregularities (EPIs) by using in situ plasma density measurements of the Swarm…”
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Hemispheric Asymmetries in the Mid‐latitude Ionosphere During the September 7–8, 2017 Storm: Multi‐instrument Observations by Wang, Zihan, Zou, Shasha, Liu, Lei, Ren, Jiaen, Aa, Ercha

“…Hemispheric asymmetries of the Vertical Total Electron Content (VTEC) were observed during the first recovery phase of the geomagnetic storm on September 7–8,…”
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Latitudinal Impacts of Joule Heating on the High‐Latitude Thermospheric Density Enhancement During Geomagnetic Storms by Wang, Xin, Miao, Juan, Lu, Xian, Aa, Ercha, Liu, Ji, Wang, Yuxian, Liu, Siqing

“…We investigate the thermosphere latitudinal response to Joule heating from 265 geomagnetic storms during the period of January 2002 to December 2008. The total…”
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Statistical Analysis of Joule Heating and Thermosphere Response During Geomagnetic Storms of Different Magnitudes by Wang, Xin, Miao, Juan, Aa, Ercha, Ren, Tingling, Wang, Yuxian, Liu, Ji, Liu, Siqing

“…During a geomagnetic storm, the energy deposition from magnetosphere to thermosphere through Joule heating leads to variations in the total mass density of…”
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A Statistical Analysis of the Morphology of Storm‐Enhanced Density Plumes Over the North American Sector by Aa, Ercha, Dzwill, Patricia, Zhang, Shun‐Rong, Erickson, Philip J.

“…The storm‐enhanced density (SED) is a large‐scale midlatitude ionospheric electron density enhancement in the local afternoon sector, which exhibits…”
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Pronounced Suppression and X‐Pattern Merging of Equatorial Ionization Anomalies After the 2022 Tonga Volcano Eruption by Aa, Ercha, Zhang, Shun‐Rong, Wang, Wenbin, Erickson, Philip J., Qian, Liying, Eastes, Richard, Harding, Brian J., Immel, Thomas J., Karan, Deepak K., Daniell, Robert E., Coster, Anthea J., Goncharenko, Larisa P., Vierinen, Juha, Cai, Xuguang, Spicher, Andres

“…Following the 2022 Tonga Volcano eruption, dramatic suppression and deformation of the equatorial ionization anomaly (EIA) crests occurred in the American…”
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A regional ionospheric TEC mapping technique over China and adjacent areas on the basis of data assimilation by Aa, Ercha, Huang, Wengeng, Yu, Shimei, Liu, Siqing, Shi, Liqin, Gong, Jiancun, Chen, Yanhong, Shen, Hua

“…In this paper, a regional total electron content (TEC) mapping technique over China and adjacent areas (70°E–140°E and 15°N–55°N) is developed on the basis of…”
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Ionospheric Responses at Low Latitudes to the Annular Solar Eclipse on 21 June 2020 by Huang, Fuqing, Li, Qiaoling, Shen, Xuhui, Xiong, Chao, Yan, Rui, Zhang, Shun‐Rong, Wang, Wenbin, Aa, Ercha, Zhong, Jiahao, Dang, Tong, Lei, Jiuhou

“…In this study, we utilized both ground‐based and space‐borne observations including total electron content (TEC) from Beidou geostationary satellites,…”
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Significant Mid‐ and Low‐Latitude Ionospheric Disturbances Characterized by Dynamic EIA, EPBs, and SED Variations During the 13–14 March 2022 Geomagnetic Storm by Aa, Ercha, Zhang, Shun‐Rong, Erickson, Philip J., Wang, Wenbin, Qian, Liying, Cai, Xuguang, Coster, Anthea J., Goncharenko, Larisa P.

“…This work investigates mid‐ and low‐latitude ionospheric disturbances over the American sector during a moderate but geo‐effective geomagnetic storm on 13–14…”
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Statistical Analysis of the Main Ionospheric Trough Using Swarm in Situ Measurements by Aa, Ercha, Zou, Shasha, Erickson, Philip J., Zhang, Shun‐Rong, Liu, Siqing

“…Abstract A statistical analysis of the topside main ionospheric trough is implemented by using the Swarm constellation in situ plasma density measurements from…”
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2‐D Total Electron Content and 3‐D Ionospheric Electron Density Variations During the 14 October 2023 Annular Solar Eclipse by Aa, Ercha, Coster, Anthea J., Zhang, Shun‐Rong, Vierinen, Juha, Erickson, Philip J., Goncharenko, Larisa P., Rideout, William

“…This study investigates the ionospheric total electron content (TEC) responses in the 2‐D spatial domain and electron density variations in the 3‐D spatial…”
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Multi‐Instrument and SAMI3‐TIDAS Data Assimilation Analysis of Three‐Dimensional Ionospheric Electron Density Variations During the April 2024 Total Solar Eclipse by Aa, Ercha, Huba, Joseph, Zhang, Shun‐Rong, Coster, Anthea J., Erickson, Philip J., Goncharenko, Larisa P., Vierinen, Juha, Rideout, William

“…This paper conducts a multi‐instrument and data assimilation analysis of the three‐dimensional ionospheric electron density responses to the total solar…”
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Multiple Longitude Sector Storm‐Enhanced Density (SED) and Long‐Lasting Subauroral Polarization Stream (SAPS) During the 26–28 February 2023 Geomagnetic Storm by Aa, Ercha, Zhang, Shun‐Rong, Wang, Wenbin, Erickson, Philip J., Coster, Anthea J.

“…This paper conducts a multi‐instrument analysis and data assimilation study of midlatitude ionospheric disturbances over the European and North American…”
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2022 Tonga Volcanic Eruption Induced Global Propagation of Ionospheric Disturbances via Lamb Waves by Zhang, Shun-Rong, Vierinen, Juha, Aa, Ercha, Goncharenko, Larisa P., Erickson, Philip J., Rideout, William, Coster, Anthea J., Spicher, Andres

“…The Tonga volcano eruption at 04:14:45 UT on 2022-01-15 released enormous amounts of energy into the atmosphere, triggering very significant geophysical…”
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Impacts of the Sudden Stratospheric Warming on Equatorial Plasma Bubbles: Suppression of EPBs and Quasi-6-Day Oscillations by Aa, Ercha, Pedatella, Nicholas M., Liu, Guiping

“…This study investigates the day-to-day variability of equatorial plasma bubbles (EPBs) over the Atlantic–American region and their connections to atmospheric…”
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Salient Midlatitude Ionosphere‐Thermosphere Disturbances Associated With SAPS During a Minor but Geo‐Effective Storm at Deep Solar Minimum by Aa, Ercha, Zhang, Shun‐Rong, Erickson, Philip J., Coster, Anthea J., Goncharenko, Larisa P., Varney, Roger H., Eastes, Richard

“…This work conducts a focused study of subauroral ion‐neutral coupling processes and midlatitude ionospheric/thermospheric responses in North America during a…”
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Multi-scale ionosphere responses to the May 2017 magnetic storm over the Asian sector by Liu, Lei, Zou, Shasha, Yao, Yibin, Aa, Ercha

“…We investigate multi-scale ionospheric responses to the May 27, 2017, geomagnetic storm over the Asian sector by using multi-instrumental observations,…”
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Equatorial Ionization Anomaly Discontinuity Observed by GOLD, COSMIC‐2, and Ground‐Based GPS Receivers' Network by Cai, Xuguang, Wang, Wenbin, Eastes, Richard W., Qian, Liying, Pedatella, Nicholas.M., Aa, Ercha, Zhang, Shunrong, Coster, Anthea, Daniell, Robert E., McClintock, William E.

“…We report a new ionosphere phenomenon: Equatorial ionization anomaly (EIA) discontinuity (EIAD), based on OI 135.6 nm radiance observations from the Global…”
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Large-Scale Ionospheric Irregularities Detected by Ionosonde and GNSS Receiver Network by Jiang, Chunhua, Wei, Lehui, Yang, Guobin, Aa, Ercha, Lan, Ting, Liu, Tongxin, Liu, Jing, Zhao, Zhengyu

“…Large-scale ionospheric irregularities, which occurred on September 8, 2017, were detected by the ionosonde and the Global Navigation Satellite System (GNSS)…”
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Electrified Postsunrise Ionospheric Perturbations at Millstone Hill by Zhang, Shun‐Rong, Erickson, Philip J., Gasque, L. C., Aa, Ercha, Rideout, William, Vierinen, Juha, Goncharenko, Larisa P., Coster, Anthea J.

“…We provide evidence that midlatitude postsunrise traveling ionospheric disturbances (TIDs) are comprised of electrified waves with an eastward propagation…”
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