2020 Virtual Summer Workshop - Revision history

Andrew.dimmock at 15:26, 31 July 2020

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Andrew.dimmock at 07:43, 17 July 2020

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← Older revision		Revision as of 15:26, 31 July 2020
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	Ahmad Lalti, (IRF Uppsala, Sweden) presented in the generation of whistler waves upstream of quasi-perpendicular shocks.		Ahmad Lalti, (IRF Uppsala, Sweden) presented in the generation of whistler waves upstream of quasi-perpendicular shocks.

−	Adam Michael (Applied Physics Laboratory, USA) discussed MMS-~~observed KHI at~~ high-latitude boundary layer~~: High~~-~~resolution Gamera simulations~~,	+	Adam Michael (Applied Physics Laboratory, USA) discussed MMS observations of periodic low frequency waves at the dawn-flank, high-latitude boundary layer on February 25, 2016, likely generated by the Kelvin-Helmholtz instability. With the global MHD magnetosphere model, GAMERA, a reinvention of the high-heritage LFM code, they show that despite the pristine slow wind impacting the magnetosphere, the high-latitude boundary layer is unstable to KHI. The waves within the global MHD model are consistent with MMS observations and occur where the IMF direction causes the draped field to be perpendicular to the flow velocity.

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 ==Virtual GEM Summer Workshop 2020==
-Due to the ongoing COVID-19 pandemic, the 2020 Summer GEM workshop was held virtually over Zoom and Slack. The Dayside Kinetic Processes in Global Solar Wind-Magnetosphere Interaction focus group held 2 concurrent sessions on Thursday between 1:00pm-2:30pm and 3:00pm-4:30pm ET. The sessions were well attended with a peak audience of 82 participants.
+Due to the ongoing COVID-19 pandemic, the 2020 Summer GEM workshop was held virtually over Zoom and Slack. The Dayside Kinetic Processes in Global Solar Wind-Magnetosphere Interaction focus group held 2 concurrent sessions on Thursday between 1:00pm-2:30pm and 3:00pm-4:30pm ET. The sessions were well attended with a peak audience of 82 participants. Short summaries of the sessions are provided below.
 ===Session 1: Thursday Concurrent Session 1 1:00pm-2:30pm ET===

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 ==Virtual GEM Summer Workshop 2020==
-Session schedule for the Dayside Kinetic Processes in Global Solar Wind-Magnetosphere Interaction focus group.
+Due to the ongoing COVID-19 pandemic, the 2020 Summer GEM workshop was held virtually over Zoom and Slack. The Dayside Kinetic Processes in Global Solar Wind-Magnetosphere Interaction focus group held 2 concurrent sessions on Thursday between 1:00pm-2:30pm and 3:00pm-4:30pm ET. The sessions were well attended with a peak audience of 82 participants.
-===General information===
+===Session 1: Thursday Concurrent Session 1 1:00pm-2:30pm ET===
-* All sessions will take place virtually on the Zoom platform. Please log into the VGEM website to get access to the sessions.
+Daniel Graham (IRF Uppsala, Sweden) provided an overview of the MMS science being conducted by the IRF Uppsala team. A wide variety of topics were discussed such as magnetic reconnection, whistler generation at quasi-perpendicular shocks, bow shock ion reflection, and electrostatic waves at the magnetopause.
-* In the sessions, all questions will be handled through the GEM Slack workspace. Please see the registration email for an invite and details on how to join.
-===Session 1: Thursday Concurrent Session 1 1:00pm-2:30pm ET===
+Martin Archer (Queen Mary University of London, UK) discussed parameterizing the steepening of foreshock ULF waves into shocklets and SLAMS. He introduced an independent and dimensionless quantitative measure of wave steepening based on the tail weight of dB/dt, showing this well orders the phenomena and correlates highly to ΔB/B allowing future quantitative comparisons of steepening under different upstream conditions and at different environments across the solar system.
-* IRFU MMS science overview, Daniel Graham (IRF Uppsala, Sweden)
-* Evolution of a foreshock bubble from dayside to nightside and impact on the magnetopause: 3D global hybrid simulation, Chih-ping Wang (UCLA, USA)
+Yuxi Chen, (University of Michigan, USA) presented the MHD-EPIC simulation results of the southward IMF challenge event, compared the simulation magnetic field and plasma properties with the MMS observations, and studied the evolution of the X-lines at the magnetopause.
 ===Session 2: Thursday Concurrent Session 1 3:00pm-4:30pm ET===
-* Interhemispheric ground responses to Hot Flow Anomalies, Hyomin Kim (New Jersey Institute of Technology, USA)
+Hyomin Kim (New Jersey Institute of Technology, USA) presented ionospheric signatures at interhemispheric conjugate locations in response to hot flow anomalies (HFAs) observed by the MMS spacecraft near the bow shock. A series of HFA events occurred over the course of less than an hour, of which the ground responses were shown as traveling convection vortices (TCV), EMIC waves, and ionospheric convection flow changes/enhancements with approximately 8 min delays. Solar wind and geomagnetic activities did not appear to provide favorable conditions for such dynamic signatures on the ground.
-* Particle acceleration by magnetosheath jet-driven bow waves, Terry Liu (UCLA, USA)
-* Transmission of foreshock cavities through the bow shock, David Sibeck (NASA/GSFC, USA)
+Terry Liu (UCLA, USA) presented case studies that show that magnetosheath jet-driven bow waves can accelerate ions and electrons. From a statistical study, they showed that large solar wind dynamic pressure, large plasma beta (low magnetic pressure), and large Alfven Mach number favor the formation of jet-driven bow waves. They also showed that it is common for them to accelerate particles indicating their potential contribution to the particle acceleration at the parent shock.
-* Statistical study of foreshock bubbles, Sun-Hee Lee (NASA/GSFC, USA)
-* Whistler waves upstream of quasi-perpendicular shocks, Ahmad Lalti, (IRF Uppsala, Sweden)
+David Sibeck (NASA/GSFC, USA) presented observations from a time interval when the THEMIS spacecraft straddled the post-noon bow shock.  The observations confirm the direct transmission of correlated foreshock cavity density and magnetic field strength variations into the magnetosheath.
-* MMS-observed KHI at high-latitude boundary layer: High-resolution Gamera simulations, Adam Michael (Applied Physics Laboratory, USA)

← Older revision		Revision as of 11:07, 21 July 2020
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	* Statistical study of foreshock bubbles, Sun-Hee Lee (NASA/GSFC, USA)		* Statistical study of foreshock bubbles, Sun-Hee Lee (NASA/GSFC, USA)
	* Whistler waves upstream of quasi-perpendicular shocks, Ahmad Lalti, (IRF Uppsala, Sweden)		* Whistler waves upstream of quasi-perpendicular shocks, Ahmad Lalti, (IRF Uppsala, Sweden)
		+	* MMS-observed KHI at high-latitude boundary layer: High-resolution Gamera simulations, Adam Michael (Applied Physics Laboratory, USA)

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 * Magnetosheath soft X-ray emission and outer exosphere density: SMILE mission support, Hyunju Connor (University of Alaska Fairbanks, USA)
 * Parameterising the steepening of foreshock ULF waves into shocklets and SLAMS, Martin Archer (Queen Mary University of London, UK)
 ===Session 2: Thursday Concurrent Session 1 3:00pm-4:30pm ET===

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 Session schedule for the Dayside Kinetic Processes in Global Solar Wind-Magnetosphere Interaction FG.
 ===Session 1: Thursday Concurrent Session 1 1:00pm-2:30pm ET===
-The Speaker list will be added shortly.
+* IRF MMS science overview, Daniel Graham (IRF Uppsala, Sweden)
+* Evolution of a foreshock bubble from dayside to nightside and impact on the magnetopause: 3D global hybrid simulation, Chih-ping Wang (UCLA, USA)
 ===Session 2: Thursday Concurrent Session 1 3:00pm-4:30pm ET===
-The Speaker list will be added shortly.
+* Interhemispheric ground responses to Hot Flow Anomalies, Hyomin Kim (New Jersey Institute of Technology, USA)

← Older revision		Revision as of 12:47, 16 July 2020
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−	~~This page~~ will be ~~updated~~ shortly.	+	==Virtual GEM Summer Workshop 2020==
		+
		+	Session schedule for the Dayside Kinetic Processes in Global Solar Wind-Magnetosphere Interaction FG.
		+
		+	- [[2019 Summer Workshop: Session schedule]]
		+
		+	===Session 1: Thursday Concurrent Session 1 1:00pm-2:30pm ET===
		+	The Speaker list will be added shortly.
		+
		+
		+	===Session 2: Thursday Concurrent Session 1 3:00pm-4:30pm ET===
		+	The Speaker list will be added shortly.