CSP Seminar Speaker: Jonathan Makela (University of Illinois at Urbana-Champaign)

in In the News
March 28th, 2011

Speaker: Jonathan Makela
Affiliation: University of Illinois at Urbana-Champaign

Title: Multi‐sensor measurements of irregularities in the low‐latitude ionosphere/thermosphere system
Date: Thursday, March 31, 2011
Time:  3:30 PM Refreshments in CAS 500, 4:00 PM Talk
Place:  725 Commonwealth Ave. CAS 502

The nighttime ionosphere at low-­‐latitudes can be an extremely dynamic region of the Earth’s atmosphere. Irregularities in this region can cause scintillations on trans-‐ionospheric radio signals, such as those from satellite-­‐based navigation and communication satellites. These effects have been known and studied for decades, however there are still many unresolved questions as to their development, extent, and decay. Recent advances in instrumentation and measurement techniques have begun to be applied to this vexing problem. Results from the Remote Equatorial Nighttime Observatory for ionospheric Regions (RENOIR) project in northeastern Brazil are presented. This project brings together measurements from imaging systems, Fabry-­‐Perot interferometers (FPIs), and GPS receivers with the goal of understanding the coupling between the neutral and plasma environments that surround Earth and the irregularities that occur therein.