Congratulations to John He on winning the grand prize for the 2021 AGU Michael H. Freilich Student Visualization Competition! John will get the opportunity to present his data visualization at the 2021 AGU Fall Meeting using NASA's Hyperwall.

Oct. 25, 2021

   Figure Caption: Grand Prize awardee 2021 AGU is currently pursuing a doctorate degree  at the Department of Geosciences, University of Arizona.

Congratulations to John He on winning the grand prize for the 2021 AGU Michael H. Freilich Student Visualization Competition! John will get the opportunity to present his data visualization with AGU and NASA at the 2021 AGU Fall Meeting using NASA Hyperwall.

The AGU Michael H. Freilich Student Visualization Competition Program provides an opportunity for students to demonstrate creative ways to use visualization to present complex problems in the Earth and space sciences as well as transdisciplinary sciences. The competition is focused on innovation and creativity in presenting data in new ways as well as the perceived level of impact and engagement the planned presentation incites in audience and the organization and conceivability of the proposed presentation of data.

The data visualization originates from a research project conducted in collaboration with University of Arizona geoscientists Stuart Thomson and Peter Reiners, as well as Sidney Hemmings (Columbia University), and Kathy Licht (Indiana University-Purdue University Indianapolis), the results of which were recently published in Earth and Planetary Science Letters



End-member scenarios showing how different assumptions of temporally and spatially variable exhumation affects the interpretation of apatite helium dates in three dimensions. From a fixed reference frame, the effect of erosional exhumation can be visualized as the passage of the closure isotherm surface through a stationary crustal block. Depending on the initial shape and tilt of the surface, and how that changes during exhumation, the same data (projected in one-dimension as a date-elevation transect) give varying constraints on the magnitude of exhumation. Note that scenarios (A1-2) and (B1-4) correspond to diagrams (A) and (B) in Fig. 5, respectively. The red and blue transparent surfaces represent the positions of the paleo-closure-isotherm at times t1 and t2, which correspond to the top and bottom of the near-vertical portion of the date-elevation relationship. See supplementary material for details of minimum constraint calculation for each endmember scenario, and additional confirmation of the effect of incision on the spatial pattern of apatite helium data using 3D thermo-kinematic modeling.
Kiriaki Xiluri