National Weather Center Colloquium

Lightning physics and detection: cutting edge research at the University of Oklahoma

Dr. Danyal Petersen
Postdoctoral Scientists,
OU School of Meteorology

28 January 2014, 4:00 PM

National Weather Center, Room 1313
120 David L. Boren Blvd.
University of Oklahoma
Norman, OK

Reception at 3:30 PM

For the last few years the University of Oklahoma School of Meteorology has been funded under the DARPA NIMBUS program to perform basic observational research of lightning for the purpose of increasing our understanding of the lightning process and its associated electromagnetic emissions. The primary focus of this research has been on addressing the following questions:
1.
What causes the initiation of lightning?
2.
What are the physical processes involved in lightning leader breakdown?
3.
What sort of information can be obtained about thunderstorm electrical activity via remote sensing?
To address these questions, we have operated an array of radio frequency, optical and high-speed video instrumentation to observe and record the activity of both natural and artificially triggered lightning. A joint effort between the OU and OSU has been undertaken to understand the role that high-energy cosmic ray particles play in the initiation of lightning. These efforts have led to several improvements in our understanding of lightning and to the formulation of potentially valuable methods for monitoring thunderstorm electrical activity. The talk will cover the highlights of the DARPA campaign while offering a cutting-edge account of the physical processes that constitute the lightning discharge.

Speaker bio

For accommodations based on disability, or more details, please call 325-6561. All visitors without NOAA or University of Oklahoma identification must register at the registration desk on arrival. Visitor parking is available for all University visitors. However, faculty/staff/students must have a current multi-purpose parking permit. Additional parking is available at the Lloyd Noble Center (LNC) for those individuals who do not have a parking permit. You do not need a permit to park in one of 1,200 spaces reserved for CART bus riders, although you must ride the CART shuttle to park in the reserved area. This area is on the north central side of the Lloyd Noble Center. Elsewhere at the LNC, permits are required.

The University of Oklahoma is a smoke-free / tobacco-free campus.

National Weather Center Colloquium Seminar Series website