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Morgan Schneider receives an NSF Graduate Fellowship!
Congratulations to Morgan for being selected for an NSF Graduate Research Fellowship. For her Ph.D. research, Morgan is planning on conducting research using the Polarimetric Atmospheric Imaging Radar (PAIR) to study tornadogenesis. Link
Casey published paper in Monthly Weather Review!
Two distinct tornadoes occurred in close proximity to each other on 10 May 2010, and Casey's paper performs a comparative analyses of their debris signatures and investigates the complex TDS structure with height.
Mobile Radar Studies Using Phased Array Radars
We have collected many supercell and tornado cases using the Atmospheric Imaging Radar (now retired), including this tornado near Luray, Kansas on 28 May 2019. Two new dual-polarized Phased Array Radars are coming to the ARRC soon: PAIR and HORUS! Learn more about our research with phased array here: Link
Does terrain strengthen or weaken tornadoes?
Using a high-resolution Large-Eddy Simulation model, we have conducted a suite of 30 simulations of tornadoes encountering a variety of different terrain types and elevation changes. Check out our recent publication in JAS here! To learn more about this project sponsored by NOAA VORTEX-Southeast program, click here: Link
David gives a university-wide webinar on our group's radar and tornado research
As part of the University's Research @ Home series, David gave a webinar entitled "Unraveling the mysteries of tornadoes using next-generation radars and computer simulations". You can watch the seminar here: link
Recent Publications
Study of Two Simultaneous TDSs
Phased Array Study of Tornado Dissipation
Mobile Radar Observations of TDSs
Study of Terrain Effects on Tornadoes
Tale of Two Simultaneous TDSs
In this Monthly Weather Review paper led by Casey Griffin, we compared the characteristics of two simultaneous TDSs occurring in close proximity to each other. We also studied storm-scale debris processes and documented the rotation and elongation of the TDS with height. pdf
PAR Studies of Tornado Dissipation
Using 5-s volume scans from the AIR, we examined the dissipation process of the 27 May 2015 Canadian, TX tornado. Similar to past studies, we identified a inside-out tornado dissipation mechanism. However, we also find evidence of a layered dissipation process with the tornado weakening near the ground prior to the layer between 500 and 1000 m AGL. pdf
RaXPol Studies of Tornadoes and Hurricanes
Working with Prof. Roger Wakimoto (UCLA) and Prof. Howard Bluestein's group, we published a rapid-scan analysis of tornado debris signatures (TDSs) from the Shawnee, Oklahoma 19 May 2013 tornado. The study documented changes in the TDS evident as the tornado caused significant damage east of Oklahoma City. The analysis undercovers changes in TDS characteristics during periods of heavy debris loading from the urban environment and the subsequent recovery after the debris falls out. pdf
In collaboration with Addison Alford, Prof. Michael Biggerstaff, and others, we published a paper examining the transition of the hurricane boundary layer across the sea-land interface using mobile radar data (SMART-Rs and RaXPol). pdf
Simulations of Terrain Effects on Tornado Dynamics
In this study led by former ARRC M.S. student Martio Satrio, we discuss how tornado dynamics are impacted by a wide range of different terrain types and elevation changes. The results are published in the the Journal of Atmospheric Sciences and can be found here. Congratulations to Martin on his first journal publication!