ROSES ID: NNH19ZDA001N Selection Year: 2019
Program Element: Focused Science Topic
Principal Investigator: Kevin H Pham
Affiliation(s): University Corporation For Atmospheric Research (UCAR)
Project Member(s):
Lin, Dong Co-I University Corporation For Atmospheric Research (UCAR)
Lotko, William Co-I University Corporation For Atmospheric Research (UCAR)
Varney, Roger H Co-I SRI International
Wang, Wenbin Co-I University Corporation For Atmospheric Research (UCAR)
Summary:
Ionospheric outflow consists of ions that have escaped the upper atmosphere and flow into the magnetosphere where they impact the global magnetosphere dynamics that feedback into the upper atmosphere. The amount of ion outflow is determined by the energization sources from the magnetosphere above and the underlying thermospheric state, but the northern and southern thermospheric states have drastically different seasonal dependencies that will influence the resulting ion outflow characteristics. A comprehensive understanding of the ion outflow response to the asymmetries in the thermosphere continues to prove challenging because it requires characterization of the thermosphere and outflow for each hemisphere simultaneously (of the whole geospace coupled system). Sources of asymmetry can come from any of the geospace components and characterizing their importance and influence requires a complex coupled geospace model. Previously modeling efforts have only electrodynamically coupling the thermosphere to the magnetosphere, limiting the types of asymmetries that can propagate. Recent development of a coupled geospace model provides additional pathways for asymmetry to propagate. Specifically, this project aims to address the following scientific issues through numerical modeling and model-data comparison:Performance Year | Reference | Investigation Type | Actions |
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3 | Lin, D., W. Wang, V. Merkin, C. Huang, M. Oppenheim, and K. ... | Other Investigations | |
3 | Lin, D., Wang, W., Garcia-Sage, K., Yue, J., Merkin, V. G., ... | Other Investigations | |
3 | Kakoti, G., M. S. Bagiya, F. I. Laskar, and D. Lin, (2023). ... | Other Investigations | |
3 | He, J., E. Astafyeva, X. Yue, N. M. Pedatella, D. Lin, T. J.... | Other Investigations | |
3 | Cai, X., Wang, W., D. Lin, Eastes, R. W., Qian, L., Zhu, Q.,... | Other Investigations | |
3 | Laskar, F. I., Sutton, E. K., D. Lin, Greer, K. R., Aryal, S... | Other Investigations | |
3 | Lin, D., W. Wang, K.H. Pham, etc al., Characterizing auroral... | Other Investigations |
Performance Year | Reference | Actions |
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3 | Pham, K.H., et al., Influence of Total Solar Eclipse on the ... | |
3 | Merkin V., D. Lin, K. Pham, et al., The role of mesoscale pr... | |
3 | Varney, R., K. H. Pham, et al., Effects of Resolving Mesosca... | |
3 | Pham, K.H., W. Lotko, W. Wang, M. Wiltberger, D. Lin, Simula... | |
3 | Lotko, W., K. H. Pham, R. Varney, etc., Poleward Moving Auro... | |
3 | Pham, K.H., W. Lotko, W. Wang, M. Wiltberger, D. Lin, Simula... | |
3 | Albarran, R., R. Varney, K.H. Pham, D. Lin, Characterization... | |
3 | Albarran, R., R. Varney, K.H. Pham, D. Lin, Characterization... |