The Remote Equatorial Nighttime Observatory of Ionospheric Regions Project and the International Heliospherical Year
- 110 Downloads
We describe a new suite of instruments planned for deployment to Cape Verde as part of the International Heliospherical Year. The Remote Equatorial Nighttime Observatory of Ionospheric Regions (RENOIR) project consists of a bistatic Fabry–Perot interferometer system, an all-sky imaging system, a dual-frequency Global Positioning System (GPS) receiver, and an array of single-frequency GPS scintillation monitors. This instrumentation will allow for studying the low-latitude thermosphere/ionosphere (TI) system in great detail. Investigations to be conducted using this instrumentation while in Cape Verde include studying equatorial irregularity processes, the effects of neutral winds and gravity waves on irregularity development, the midnight temperature maximum, and ion-neutral coupling in the nighttime TI system. Initial observations from the RENOIR instrumentation during pre-deployment testing at the Urbana Atmospheric Observatory are presented, as is the deployment scenario for the project in Cape Verde.
KeywordsIonosphere Thermosphere Neutral winds Airglow measurements
The equipment involved in RENOIR was funded through a DURIP award to the University of Illinois at Urbana-Champaign through ONR contract N00014-06-1-0755. Work at Clemson University is funded through award NNX07AM32G from the IHY program at NASA. Work at the University of Illinois at Urbana-Champaign is funded through subcontract CU8000028589 from Clemson University.
- M.C. Kelley, The Earths ionosphere (Academic Press, San Diego, 1989)Google Scholar
- M.C. Kelley, J.J. Makela, B.M. Ledvina, P.M. Kintner, Observations of equatorial spread-F from Haleakala, Hawaii. Geophys. Res. Lett. 29(20) (2002). doi: 10.1029/2002GL015509
- E. Kudeki, A. Akgiray, M. Milla, J. Chau, D. Hysell, Equatorial spread-F initiation: post-sunset vortex, thermospheric winds, gravity waves. J. Atmos. Sol. Terr. Phys. (2007). doi: 10.1016/j.jastp.2007.04.012
- M. Mendillo, J. Meriwether, M. Biondi, Testing the thermospheric neutral wind suppression mechanism for day-to-day variability of equatorial spread-F. J. Atmos. Sol. Terr. Phys. 63, 3655–3664 (2001)Google Scholar