CMG Home

April 19, 1996 | Boundary Anchoring | Flanking Lines | Microphysics | EnKF Data Assimilation | Severe Hail
R. B. Wilhelmson | B. Jewett | M. Gilmore | G. Romine | L. Cronce | L. Orf | A. Houston | L. Wicker
UIUC Weather | Weather Links
Journal | Informal | Dissertation and Theses
Supertwister | Images and Animations | HVR Demo

Convective Modeling Group

Click for image description

Current Highlight

Feature detection software was developed and applied towards the detection of swirling flow in a numerically simulated supercell thunderstorm. The software operates on digital model history files and outputs data containing the three-dimensional location of vortex centers and the magnitude of the vorticity vector at these locations. This data is then rendered in different ways, producing unique insight into the internal structure of the simulated storm including the dynamic and sometimes transient nature of highly anisotropic vortices. The algorithm, based upon the method of Sujudi and Haimes, is applied towards tracing the location and magnitude of features resembling weak tornadoes at ground level, tracing vorticity magnitude along the path of a surface vortex, and producing three-dimensional visualizations and animations of vortex location and magnitude in selected regions of the storm. This technique is found to offer unique advantages to other visualization approaches, most notably the capture of vortex core locations which can be exploited by post-production software to calculate diagnostic quantities through time and space. Click on the image at left for more information, as well as a access to a larger version of the image.

Past Highlights

Hunt for the Supertwister

Current Activities

The Convective Modeling Group pursues challenging scientific problems in the atmospheric sciences, particularly processes on the storm-scale, utilizing the powerful computational and expert knowledge resources of NCSA to tackle computational intensive projects. Current efforts include the following research topics:

  • Interactions between storms and storms with boundaries and subsequent behavior
  • Dynamics of long-track tornadoes and relation to the larger-scale environment
  • Impact upon storm dynamics via use of advanced physical parameterizations
  • Investigation of supercell flanking line behavior
  • Polarimetric radar data assimilation using the Ensemble Kalman Filter

Research Portal to current and recent research activities within the convective modeling group.

Group Members Current convective modeling group members and collaborators.

Weather Links to current weather information for Illinois and throughout the nation.

Publications Links to recent convective modeling group publications.

Gallery Featured images and animations generated from CMG research.

Educational Thrusts Incorporating evolving technologies into the process of learning at the high school, college and graduate levels

Site Map | Contact Us | © 2005, all rights reserved | Last updated 24 January, 2005

This material is based upon work supported by the National Science Foundation under Grant No. 0449753. Any opinions, findings and conclusions or recomendations expressed in this material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation (NSF).