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Proposal Identification No.: T2213 Date Received: 2006­Jan­31 15:45:06
Technical Page
Proposal Type: Regular
General Category: Terrestrial Aeronomy
Sub­Category: Radar
Observation Category: Ionosphere
Total Time Requested: 48 Hours
Proposal Title: Verification and Calibration of On­orbit Detection of Ionospheric Layers and
Conductivity Using the GPS Occultation Method
ABSTRACT:
Verification and Calibration of On­orbit Detection of Ionspheric Layers and Conductivity Using the GPS
Occultation Method One of the most exciting developments in Space Weather is the possibility to invert
occultations of the signal from GPS satellites using receivors in satellites. Such measurements can in principle be
used to generate thousands of plasma density profiles over the globe. These profiles could then be used in
assimilative models of the ionosphere which are important for the development of the National Space Weather
Program. In March 2006 the most ambitious occultation program to date will begin with the launch of the
constellation COSMIC. However the inversion process is di#cult and in need of verification. The Arecibo ISR is
uniquely suited to make such a calibration and validation. Further from a scientific standpoint the development of
Equatorial Spread F is controlled by the E­region conductivity. The only practical way to get information on this
parameter is by GPS occultations. Finally the layers are of considerable scientific interest.
Name Institution E­mail Phone Student
Michael C Kelley Cornell University mck13@cornell.edu 607 2557425 no
Service Observing Request Remot e Observing Request
X None X No
All of the observing run. Maybe
Part of the observing run. Yes
Queue Observing
Instrument Setup
430 G 430 CH receiver 430 CH radar
Atmospheric Observation Instruments:
Fabry­Perot Ionosonde Lidar
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Special Equipment or setup: There is no place to request dual beam operations which we need.
The AO airglow camera is not listed but we would like to use it. For the adjacent World Days we desire
plasmaline observations during the day.
RFI Considerations
Frequency Ranges Planned
420­440 MHz
2