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Proposal Identification No.:

T2565

Date Received:

2010-Feb-01 17:49:09

Technical Page
Proposal Type: General Category: Sub-Category: Observation Category: Total Time Requested: Minimum Useful Time: Prop osal Title: ABSTRACT: Regular Terrestrial Aeronomy Radar Heater 16 Hours 6 Hours

Low Frequency Electrostatic Emissions Excited by the Arecibo HF Facility

Stimulated electromagnetic emissions (SEE) are produced by high power electromagnetic (EM) pump waves in the ionosphere. The electromagnetic emissions are measured on the ground in the form of downshifted and upshifted sidebands from the pump wave frequency. The frequency offsets from the pump provide information such as electron temperature, ion composition, HF interaction altitude, electron acceleration though wave-particle resonances, and field-aligned irregularity (FAI) generation. NRL will bring digital receivers to the Arecibo Observatory to record the EM signals scattered from the ionosphere during F-Region and E-Region ionospheric modification experiments. Time is requested to control the HF pump modes for optimum SEE generation. The measurements of plasma properties with SEE will be compared with and validated by the incoherent scatter radar (ISR).

Name Paul A Bernhardt

Institution Naval Research Laboratory

E-mail bern@ppd.nrl.navy.mil

Phone 202-767-0196

Student no

Remote Observing Request

X

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

Instrument Setup
430 G 47 CH receiver

Atmospheric Observation Instruments: Tilt-Photometer Ionosonde

Description of Observer Equipment: SEE Receivers CCD Cameras 1


Sp ecial Equipment or setup:

none

RFI Considerations Frequency Ranges Planned

2