Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.naic.edu/vscience/schedule/tpfiles/MakelatagT2374tp.pdf Дата изменения: Tue Oct 9 18:26:07 2007 Дата индексирования: Sun Apr 13 03:22:11 2008 Кодировка: Поисковые слова: space station

Proposal Identification No.:

T2374

Date Received:

2007-Oct-01 15:08:56

Technical Page
Proposal Type: General Category: Sub-Category: Observation Category: Total Time Requested: Minimum Useful Time: Prop osal Title: Regular Terrestrial Aeronomy Radar Thermosphere 96 Hours 4 hours starting at sunset

Characterizing the Electrodynamics within Medium-Scale Traveling Ionospheric

Disturbances
ABSTRACT:
Medium-scale traveling ionospheric disturbances (MSTIDs) have been observed over Arecibo during the last decade using the incoherent scatter radar (ISR) and facility passive optical instruments. One of the limitations of these past studies has been that most of the structures observed extend out of the field of view of the Arecibo facility imaging system. New instrumentation (two imagers, two dual-frequency GPS receivers) is currently being deployed in the southern Caribbean to address this limitation. We propose to make measurements of the properties of MSTIDs with the ISR (electron densities, electric fields), 630.0-nm Fabry-Perot interferometer (thermospheric neutral winds), and facility imaging system in conjunction with this new instrumentation. With these measurements, we will (a) better characterize the electrodynamic nature of MSTIDs seen in the imagers, (b) study of the background conditions conducive to MSTID development, and (c) characterize the effects these structures can have on trans-ionospheric radio wave propagation.

Name Jonathan J Makela

Institution University of Illinois at UrbanaChampaign

E-mail jmakela@uiuc.edu

Phone 217-265-9470

Student no

Remote Observing Request

X

Observer will travel to AO Remote Observing In Absentia (instructions to operator)

Instrument Setup
430 G 430 CH receiver 430 CH radar

Atmospheric Observation Instruments: 1


Fabry-Perot Ionosonde Description of Observer Equipment: Instrumentation (GPS, imager) will be located off site (in southern Caribbean) to complement the facility instrumentation. Sp ecial Equipment or setup: none

RFI Considerations Frequency Ranges Planned

2