Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.naic.edu/vscience/schedule/tpfiles/FentzketagT2635tp.pdf Дата изменения: Thu Feb 10 23:52:34 2011 Дата индексирования: Mon Feb 4 22:27:40 2013 Кодировка: Поисковые слова: arp 220

Proposal Identification No.:

T2635

Date Received:

2011-Feb-04 14:54:27

Technical Page
Proposal Type: General Category: Sub-Category: Observation Category: Total Time Requested: Minimum Useful Time: Regular Terrestrial Aeronomy Radar E-region 24 Hours

Prop osal Title: Measuring the Effect of Ion-Neutral Collisions on E-Region ISR Observations Using the BGK, Brownian, and Hard-Sphere Approximations ABSTRACT:
The collisional process that governs ion-neutral collisions in the partially ionized E-region plasma is unknown. However, the three most likely approximations for these interactions are: BGK, Brownian, and Hard-Sphere. Recent work has shown that it should be possible to measure the differences in the observed autocorrelations due to the effects of these ion-neutral collision approximations using the 430MHz transmitter at Arecibo. We request a diurnal observing period using the 430MHz transmitter with power profiles. This will allow us to diagnose the data quality of a new observing mode, using coded long pulse and pulse-to-pulse techniques, during both sunlit and dark periods. This 24-hour period will also provide data for a comparison of how, when, and at what altitudes the various collisional approximations yield similar results. Or more importantly, at what times and altitudes the approximations diverge and data quality degrades when compared to previous simulations.

Name Jonathan T Fentzke

Institution NWRA, Inc. - CoRA Div.

E-mail fentzke@cora.nwra.com

Phone 716-481-7475

Student no

Remote Observing Request

X

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

Instrument Setup
430 CH receiver 430 CH radar Atmospheric Observation Instruments: Ionosonde 1


Sp ecial Equipment or setup: Currently a new observing mode must be implemented using existing observing modes that incorporate both a coded long pulse (CLP) and pulse-to-pulse technique. This effort is being developed by Phil Perillat and Micheal Sulzer currently and will be ready before the February deadline.

RFI Considerations Frequency Ranges Planned

2