Junshik Um
2017
2015
2013
2017
2016
2015
Junshik Um: Impacts of Orientation, Shape, and Size of Small Atmospheric Ice Crystals on Calculated Scattering Properties: Implications for In Situ Aircraft Measurements, Satellite Retrievals, and Numerical Models
Blue Waters Symposium 2017, May 17, 2017
Junshik Um: Dependence of Directional Intensity and Polarization of Light Scattered by Small Ice Crystals on Microphysical Properties: Application to Forward-scattering Probes, Satellite Retrieval, and Numerical Models
Blue Waters Symposium 2016, Jun 13, 2016
Junshik Um: Impacts of Shape, Size, and Area Ratio of Small Atmospheric Ice Crystals on Single-scattering Properties: Application to Forward-scattering Probes, Satellite Retrievals and Numerical Models
International Radiation Symposium (IRS 2016); Auckland, New Zealand, Apr 18, 2016
Junshik Um, Greg McFarquhar: A Lower Limit of Applicability of the Conventional Geometric Optics Method: A Comparison with the Discrete Dipole Approximation for the Scattering Properties of Atmospheric Ice Crystals
4th XSEDE Annual Conference (XSEDE 15); St. Louis, Missouri, U.S.A., Jul 29, 2015
Junshik Um and G. M. McFarquhar: Formation of Atmospheric Halos by Hexagonal Ice Crystals
American Meteorological Society 14th Conference on Atmospheric Radiation; Boston, Massachusetts, U.S.A., Jul 7, 2014
Junshik Um, G. McFarquhar: Efficient Numerical Orientation Average for Calculations of Single-Scattering Properties of Small Atmospheric Ice Crystals
4th Atmospheric System Research (ASR) Science Team Meeting; Potomac, Maryland, U.S.A., Mar 19, 2013
Blue Waters Illinois allocations awarded to 26 research teams
Mar 7, 2017
Twenty-six research teams at the University of Illinois at Urbana-Champaign have been allocated computation time on the National Center for Supercomputing Application's (NCSA) sustained-petascale Blue Waters supercomputer after applying in Fall 2016. These allocations range from 25,000 to 600,000 node-hours of compute time over a time span of either six months or one year. The research pursuits of these teams are incredibly diverse, ranging anywhere from physics to political science.
Sources:
18 general, 9 exploratory allocations on Blue Waters awarded to Illinois researchers
Nov 24, 2014
Eighteen researchers at the University of Illinois at Urbana-Champaign received allocations on the Blue Waters petascale supercomputer at the National Center for Supercomputing Applications (NCSA). A portion of available time on Blue Waters is reserved for University faculty and staff projects like these that require the system’s unique capabilities. Ten of the awards will continue projects already running on Blue Waters, related to a wide variety of topics like tornadoes, steel casting, and cell function, among others. Eight allocations are for new projects.
Sources:
- Database of scattering properties of small ice crystals: implications for satellite retrieval algorithms and numerical models (Blue_Waters_Report_UM.pdf)
- Exact solutions of light scattering by small atmospheric ice crystals to improve in situ measurements, satellite retrieval algorithms, and numerical models (Blue_Waters_Report_UM_Dec.pdf)
