Shasha Zou

Associate Professor

Department of Climate and Space Sciences and Engineering, College of Engineering, University of Michigan

Publications

Peer Reviewed Publications

Year 2020

  1. Nigusse, M., Moldwin, M., Radicella, S., Yizengaw, E., Zou, S., Nava, B. (2020) The effect of F-layer neutral wind on the monthly and longitudinal variability of equatorial ionosphere irregularities and drift velocity, Journal of Geophysical Research: Space Physics, 125, accepted
  2. Aa, E., Zou, S., & Liu, S. (2020). Statistical analysis of equatorial plasma irregularities retrieved from Swarm 2013‐‐2019 observations. Journal of Geophysical Research: Space Physics, 125, e2019JA027022. https://doi.org/10.1029/2019JA027022
  3. Ren, J., Zou, S., Kendall, E., Coster, A., Sterne, K., & Ruohoniemi, M. (2020). Direct Observations of a Polar Cap Patch Formation Associated with Dayside Reconnection Driven Fast Flow. Journal of Geophysical Research: Space Physics, 125, e2019JA027745. https://doi.org/10.1029/2019JA027745
  4. Aa, E., Zou, S., Erickson, P. J., Zhang, S.‐R., & Liu, S. (2020). Statistical analysis of the main ionospheric trough using Swarm in situ measurements. Journal of Geophysical Research: Space Physics, 125, e2019JA027583. https://doi.org/10.1029/2019JA027583
  5. Yue, C., Bortnik, J., Zou, S., Nishimura, Y., Foster, J. C., Coppeans, T., et al (2020). Episodic occurrence of field‐aligned energetic ions on the dayside. Geophysical Research Letters, 47, https://doi.org/10.1029/2019GL086384.
  6. Liu, L., Zou. S., Yao, Y., Aa, E. (2020) Multi-scale ionosphere responses to the May 2017 magnetic storm over the Asian sector, GPS solution, 24(1), 26. https://doi.org/10.1007/s10291-019-0940-1.

Back to top

Year 2019

  1. Aa, E., Zou, S., Eastes, R., Karan, Deepak, Zhang, S.-R., Erickson, P. J., Coster, A. J. (2019), Coordinated ground-based and space-based observations of equatorial plasma bubbles, Journal of Geophysical Research: Space Physics, 124. https://doi.org/10.1029/2019JA027569 , Special section: Early results from the Global-scale Observations of the Limb and Disk (GOLD) mission.
  2. Liu, L., Yao, Y., Zou. S., Kong, J., Shan, L., Zhao, C., Zhai C. (2019) Ingestion of GIM-derived TEC data for updating IRI-2016 driven by effective IG indices over the European region, Journal of Geodesy, https://doi.org/10.1007/s00190-019-01291-5.
  3. Poh, G., Slavin, J. A., Lu, S., Le, G., Ozturk, D. S., Sun, W.‐J.,Zou. S., et al., (2019). Dissipation of Earthward Propagating Flux Rope Through Re‐reconnection with Geomagnetic Field: An MMS Case Study. Journal of Geophysical Research: Space Physics, 124. https://doi.org/10.1029/2018JA026451.
  4. Wang, Z., Zou. S., Coppeans, T., Ren, j., Ridley, A., Gombosi, T. (2019). Segmentation of Storm Enhanced Density (SED) by Boundary Flows Associated with Westward Drifting Partial Ring current, Geophysical Research Letters, 46. https://doi.org/10.1029/2019GL084041
  5. Wang, C.‐P., Fuselier, S. A., Hairston, M., Zhang, X.‐j., Zou. S., Avanov, L. A., et al (2019). Event studies of O+ density variability within quiet‐time plasma sheet, Journal of Geophysical Research: Space Physics, 124. https://doi.org/10.1029/2019JA026644
  6. Ozturk, D., Zou. S., Slavin. J. A., Ridley, A. J. (2019), Response of the geospace system to the solar wind dynamic pressure decrease on 11 June 2017: Numerical models and observations, Journal of Geophysical Research: Space Physics, 124, 2613– 2627. https://doi.org/10.1029/2018JA026315.
  7. Zou, S. , G. Perry, J. Foster (2019), Recent advances in polar cap density structure research, Solar/Heliosphere 3: Advances in Ionospheric Research , AGU book, accepted.
  8. Foster, J., Zou, S. , Heelis, R., Erickson, P. (2019), Ionospheric Storm Enhanced Density (SED) Plumes, Solar/Heliosphere 3: Advances in Ionospheric Research , AGU book, accepted.
  9. Wang, Z., Zou, S. , Shepherd, S., Liang, J., Gjerloev, J., Ruohoniemi, J., Kunduri, B., Wygant, J. (2019), Multi-instrument observations of meso-scale enhancement of SAPS associated with an injection, Journal of Geophysical Research: Space Physics, 124, 1770– 1784. https://doi.org/10.1029/2019JA026535.
  10. Aa, E., Zou, S., Ridley, A. J., Zhang, S.‐R., Coster, A. J., Erickson, P. J., Liu, S., Ren, J. (2019), Merging of storm‐time midlatitude traveling ionospheric disturbances and equatorial plasma bubbles, Space Weather , 17, 285 – 298, https://doi.org/10.1029/2018SW002101

Back to top

Year 2018

  1. Aa, E., Ridley, A. J., Huang, W., Zou, S., Liu, S., Coster, A. J., & Zhang, S. (2018), An Ionosphere Specification Technique Based on Data Ingestion Algorithm and Empirical Orthogonal Function Analysis Method, Space Weather , 16. https://doi.org/10.1029/2018SW001987
  2. Ren, J., Zou, S., Gillies, R. G., Donovan, E., & Varney, R. H. (2018). Statistical Characteristics of Polar Cap Patches Observed by RISR‐C. Journal of Geophysical Research: Space Physics , 123. https://doi.org/10.1029/2018JA025621.
  3. Jin, H., Zou, S., Chen, G., Yan, C., Zhang, S., & Yang, G. (2018), Formation and evolution of low‐latitude F region field‐aligned irregularities during the 7–8 September 2017 storm: Hainan coherent scatter phased array radar and digisonde observations, Space Weather ,16, 648–659. https://doi.org/10.1029/2018SW001865
  4. Liang, J.,Donovan, E., Reimer, A., Hampton, D., Zou, S., & Varney, R. (2018), Ionospheric electron heating associated with pulsating auroras: Joint optical and PFISR observations. J. Geophys. Res. Space Physics , 123, 4430–4456. https://doi.org/10.1029/2017JA025138.
  5. Ozturk, D. S., Zou, S., Ridley, A. J., & Slavin, J. A. (2018), Modeling study of the geospace system response to the solar wind dynamic pressure enhancement on 17 March 2015. J. Geophys. Res. Space Physics , 123, 2974–2989. https://doi.org/10.1002/2017JA025099.
  6. Aa, E., Huang, W., Liu, S., Ridley, A., Zou, S., Shi, L. et al. (2018), Midlatitude plasma bubbles over China and adjacent areas during a magnetic storm on 8 September 2017. Space Weather , 16, 321–331. https://doi.org/10.1002/2017SW001776.

Back to top

Year 2017

  1. Hartinger, M., S. Zou, K. Takahashi, X. Shi, R. Redmon, J. Goldstein, W. Kurth, and J.W. Bonnell (2017), Nightside Pi2 wave properties during an extended period with stable plasmapause location and variable geomagnetic activity, J. Geophys. Res. Space Physics , 122, doi:10.1002/2017JA024708.
  2. Ozturk, D., S. Zou, and J. A. Slavin (2017), IMF By effects on ground magnetometer response to increased solar wind dynamic pressure derived from global MHD simulations, J. Geophys. Res. Space Physics , 122, doi:10.1002/2017JA023903.
  3. Zou, S. , D. Ozturk, R. Varney, and A. Reimer (2017), Effects of Sudden Commencement on the Ionosphere: PFISR Observations and Global MHD Simulation, Geophys. Res. Lett. , 44, doi:10.1002/2017GL072678.
  4. Zou, S. , A. Ridley, X. Jia, E. Boyd, M. Nicolls, A. Coster, E. Thomas, J. M. Ruohoniemi (2017), Multi-instrument observations of intense ion upflow fluxes associated with SED observed during the June 1, 2013 geomagnetic storm, J. Geophys. Res., 122, doi:10.1002/2016JA023697.
  5. Heine, T., M. B. Moldwin, S. Zou (2017), Small-scale structure of the mid-latitude storm enhanced density plume during the March 17, 2015 St. Patrick’s day storm, J. Geophys. Res., 122, doi:10.1002/2016JA022965

Back to top

Year 2016

  1. Zou, S. and A. J. Ridley (2016), Modeling of the Evolution of Storm-Enhanced Density (SED) Plume during the Oct. 24-25, 2011 Geomagnetic Storm, in Magnetosphere-Ionosphere Coupling in the Solar System (eds C. R. Chappell, R. W. Schunk, P. M. Banks, J. L. Burch and R. M. Thorne), John Wiley & Sons, Inc., Hoboken, NJ, USA. doi: 10.1002/9781119066880.ch16.
  2. Moldwin, M. B., S. Zou, and Heine, T. (2016), The story of plumes: the development of a new conceptual framework for understanding magnetosphere and ionosphere coupling, Ann. Geophys., 34 , 1243-1253, doi:10.5194/angeo-34-1243-2016.
  3. Lyons, L., B. Gallardo-Lacourt, S. Zou, Y. Nishimura, W. Li, M. Gkioulidou, E. F. Donovan, J. M. Ruohoniemi, N. Nishitani (2016), 2013 March 17, 2013 storm: Synergy of Observations Related to Electric Field Drivers and Their Ionospheric and Magnetospehric Effects, J. Geophys. Res., 121, doi:10.1002/2016JA023237.
  4. Sarno-Smith, L., M. W. Liemohn, R. Skoug, O. Santolik, S. Morley, A. Breneman, B. A. Larsen, G. Reeves, J. R. Wygant, G. Hospodarsky, C. Kletzing, M. B. Moldwin, R. M. Katus, S. Zou (2016), Hiss or Noise? Ambiguities in analyzing suprathermal ion plasma wave response, J. Geophys. Res., 121, 9619–9631, doi:10.1002/2016JA022975.

Back to top

Year 2015

  1. Heine, T., M. Moldwin, S. Zou, J. Arlas, A. Desai, B. Heidt, S. McCarty, A. Nastasoiu, and V. Singh (2015), A Cubesat concept for multipoint ionospheric GPS occultation, Journal of Small Satellite,.
  2. Yu, Y., V. Jordanova, S. Zou, R. Heelis, M. Ruohoniemi, and J. Wygant (2015), Modeling subauroral polarization streams during the 17 March 2013 storm, J. Geophys. Res., 120, doi: 10.1002/2014JA020371.
  3. Hartinger, M. D., M. B. Moldwin, S. Zou, J. W. Bonnell, and V. Angelopoulos (2015), ULF wave electromagnetic energy flux into the ionosphere: Joule heating implications, J. Geophys. Res., 120, 494–510, doi:10.1002/2014JA020129.

Back to top

Year 2014

  1. Zou, S., M. B. Moldwin, A. J. Ridley, M. J. Nicolls, A. J. Coster, E. G. Thomas, and J. M. Ruohoniemi (2014), On the generation/decay of the storm-enhanced density (SED) plumes: role of the convection flow and field-aligned ion flow, J. Geophys. Res., 119, 543–8559, doi: 10.1002/2014JA020408.
  2. Gallardo-Lacourt, B., Y. Nishimura, L. R. Lyons, S. Zou, V. Angelopoulos, E. Donovan, S.B Mende, K. McWilliams, J. M. Ruohoniemi and N. Nishitani (2014), Coordinated SuperDARN-THEMIS ASI observations of mesoscale flow bursts associated with auroral streamers, J. Geophys. Res., 119, doi: 10.1002/2013JA019245.

Back to top

2013

  1. Zou, S., A. J. Ridley, M. B. Moldwin, M. J. Nicolls, A. J. Coster, E. G. Thomas, and J. M. Ruohoniemi (2013), Multi-instrument observations of SED during 24–25 October 2011 storm: Implications for SED formation processes, J. Geophys. Res., 118, 7798–7809, doi:10.1002/2013JA018860.
  2. Zou, S., M. B. Moldwin, M. J. Nicolls, A. J. Ridley, A. J. Coster, E. Yizengaw, L. R. Lyons, and E. F. Donovan (2013), Electrodynamics of the high-latitude trough: Its relationship with convection flows and field-aligned currents, J. Geophys. Res., 118, 2565–2572, doi:10.1002/jgra.50120.
  3. Katus, R. M., M. W. Liemohn, D. L. Gallagher, A. Ridley, and S. Zou (2013), Evidence for potential and inductive convection during intense geomagnetic events using normalized superposed epoch analysis, J. Geophys. Res., 118, 181–191, doi:10.1029/2012JA017915.

Back to top

2012

  1. Moldwin, M. B. and Zou, S. (2012), The Importance of the Plasmasphere Boundary Layer for Understanding Inner Magnetosphere Dynamics, in Dynamics of the Earth's Radiation Belts and Inner Magnetosphere (eds D. Summers, I. R. Mann, D. N. Baker and M. Schulz), American Geophysical Union, Washington, D. C.. doi: 10.1029/2012GM001323.
  2. Zou, S., Lyons, L. R. and Nishimura, Y. (2012), Mutual Evolution of Aurora and Ionospheric Electrodynamic Features Near the Harang Reversal During Substorms, in Auroral Phenomenology and Magnetospheric Processes: Earth And Other Planets (eds A. Keiling, E. Donovan, F. Bagenal and T. Karlsson), American Geophysical Union, Washington, D. C.. doi: 10.1029/2011GM001163.
  3. Lyons, L. R., Nishimura, Y., Xing, X., Shi, Y., Gkioulidou, M., Wang, C.-P., Kim, H.-J., Zou, S., Angelopoulos, V. and Donovan, E. (2012), Auroral Disturbances as a Manifestation of Interplay Between Large-Scale and Mesoscale Structure of Magnetosphere-Ionosphere Electrodynamical Coupling, in Auroral Phenomenology and Magnetospheric Processes: Earth And Other Planets (eds A. Keiling, E. Donovan, F. Bagenal and T. Karlsson), American Geophysical Union, Washington, D. C.. doi: 10.1029/2011GM001152.

Back to top

2011

  1. Zou, S., M. B. Moldwin, A. Coster, L. R. Lyons, and M. J. Nicolls (2011), GPS TEC observations of dynamics of the mid-latitude trough during substorms, Geophys. Res. Lett., 38, L14109, doi:10.1029/2011GL048178.
  2. Nishimura, Y., L. R. Lyons, V. Angelopoulos, T. Kikuchi, S. Zou, and S. B. Mende (2011), Relations between multiple auroral streamers, pre-onset thin arc formation, and substorm auroral onset, J. Geophys. Res., 116, A09214, doi:10.1029/2011JA016768.
  3. Nishimura, Y., L. R. Lyons, S. Zou, V. Angelopoulos, and S. Mende (2011), Categorization of the time sequences of events leading to substorm onset based on THEMIS all-sky imager observations, The Dynamic Magnetosphere, IAGA Special Sopron Book Series 3, edited by W. Liu and M. Fujimoto, Volune 3, pp 133-142.

Back to top

2010

  1. Nishimura, Y., L. R. Lyons, S. Zou, V. Angelopoulos, and S. B. Mende (2010), Reply to comment by Harald U. Frey on “Substorm triggering by new plasma intrusion: THEMIS all-sky imager observations”, J. Geophys. Res., 115, A12233, doi:10.1029/2010JA016182.
  2. Lyons, L., Y. Nishimura, X. Xing, V. Angelopoulos, S. Zou, D. Larson, J. McFadden, A. Runov, S. Mende, K.-H. Fornacon (2010), Enhanced transport across entire length of plasma sheet boundary field lines leading to substorm onset, J. Geophys. Res., 115, A00I07, doi:10.1029/2010JA015831.
  3. Nishimura, Y., L. Lyons, S. Zou, X. Xing, V. Angelopoulos, S. Mende and 9 other co-authors (2010), Pre-onset time sequence of auroral substorms: Coordinated observations by ASIs, satellites and radars, J. Geophys. Res., 115, A00I08, doi:10.1029/2010JA015832.
  4. Zou, S., M. B. Moldwin, L. R. Lyons, Y. Nishimura, M. Hirahara, T. Sakanoi, K. Asamura, M. J. Nicolls, Y. Miyashita, S. B. Mende, and C. J. Heinselman (2010), Identification of substorm onset location and pre-onset sequence using Reimei, THEMIS GBO, PFISR and Geotail, J. Geophys. Res., 115, A12309, doi:10.1029/2010JA015520.
  5. Nishimura, Y., L. Lyons, S. Zou, V. Angelopoulos, and S. Mende (2010), Substorm triggering by new plasma intrusion: THEMIS all-sky imager observations, J. Geophys. Res., 115, A07222, doi:10.1029/2009JA015166.
  6. Lyons, L. R., Y. Nishimura, Y. Shi, S. Zou, H.-J. Kim, V. Angelopoulos, C. Heinselman, M. J. Nicolls, and K.-H. Fornacon (2010), Substorm triggering by new plasma intrusion: Incoherent-scatter radar observations,  J. Geophys. Res., 115, A07223, doi:10.1029/2009JA015168.

Back to top

2009 and earlier

  1. Zou, S., L. R. Lyons, M. J. Nicolls, C. J. Heinselman and S. B. Mende (2009), Nightside ionospheric electrodynamics associated with substorms: PFISR and THEMIS ASI observations, J. Geophys. Res., 114, A12301,doi:10.1029/2009JA014259.
  2. Lyons, L. R., H.-J. Kim, X. Xing, S. Zou, C. Heinselman, M. Nicolls, M. McCready, V. Angelopoulos, D. Larson, J. McFadden, A. Runov, K. Glassmeier (2009), Evidence that solar wind fluctuations substantially affect global convection and substorm occurrence, J. Geophys. Res., 114, A11306, doi:10.1029/2009JA014381.
  3. Kim, H.-J., L. R. Lyons, S. Zou, A. Boudouridis, D.-Y. Lee, C. J. Heinselman, and M. A. McCready (2009), Evidence that solar wind fluctuations substantially affect the strength of dayside ionospheric convection, J. Geophys. Res., 114, A11305, doi:10.1029/2009JA014380.
  4. Lyons, L. R., C.-P. Wang, M. Gkioulidou, S. Zou (2009), Connections between plasma sheet transport, Region 2 currents, and entropy changes associated with convection, SMCs, and substorms, J. Geophys. Res., 114, A00D01, doi:10.1029/2008JA013743.
  5. Zou, S., L. R. Lyons, C.-P. Wang, A. Boudouridis, J. M. Ruohoniemi, P. C. Anderson, P. L. Dyson, and J. C. Devlin (2009), On the coupling between the Harang reversal evolution and substorm dynamics: a synthesis of SuperDARN, DMSP and IMAGE observations, J. Geophys. Res., 114, A01205, doi:10.1029/2008JA013449.
  6. Zou, S., L. R. Lyons, M. J. Nicolls and C. J. Heinselman (2009), PFISR observations of strong azimuthal flow bursts in the ionosphere and their relation to nightside aurora, J. Atmos. and Solar-Terr. Phys., doi:10.1016/j.jastp.2008.06.015.
  7. Lyons, L. R., S. Zou, C. J. Heinselman, M. J. Nicolls, and P. C. Anderson (2009), Poker Flat radar observations of the magnetosphere-ionosphere coupling electrodynamics: earthward penetrating plasma sheet following convection enhancements, J. Atmos. and Solar-Terr. Phys., 71, 717-728, doi:10.1016/j.jastp.2008.09.025.
  8. Lyons, L. R., D.-Y. Lee, S. Zou, C.-P. Wang, J. U. Kozyra, J. M. Weygand, and S. B. Mende (2008), Dynamic pressure enhancements as a cause of large-scale storm-time substorms, J. Geophys. Res., 113, A08215, doi:10.1029/2007JA012926.
  9. Zou, S., L. R. Lyons, M. A. McCready, C. J. Heinselman (2008), High-time resolution dayside convection monitoring by incoherent scatter radar and a sample application, J. Geophys. Res., 113, A01203, doi: 10.1029/2007JA012364.
  10. Hwang, J. A., D.-Y. Lee, L. R. Lyons, A. J. Smith, S. Zou, K. W. Min, K.-H. Kim, Y.-J. Moon, and Y. D. Park (2007), Statistical significance of association between whistler-mode chorus enhancements and enhanced convection periods during high-speed streams, J. Geophys. Res., 112, A09213, doi:10.1029/2007JA012388.

Back to top