The WIND-HAARP Experiment: Initial Results of High Power Radiowave Interactions with Space Plasmas

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Abstract:

Results from the first science experiment with the new HF Active Auroral Research Program HAARP facility in Alaska are reported. The initial experiments involved transmission of high frequency waves from HAARP to the NASAWIND satellite. The objective was to investigate the effects of space plasmas on high power approx. 300 kW radiowave transmission from the ground to high altitudes in the magnetosphere. The data acquired suggest that structured space plasmas along the propagation path impose a power law spectrum of intensity fluctuations on the transmitted waves, resembling that of scintillation interactions. However, because the transmitted wave frequencies are near ionospheric plasma frequencies, other types of wave-plasma interactions may occur. The measurements can provide an important new diagnostic tool for space plasmas.

Author(s):
Rodriguez, P. ; Kennedy, E. ; Keskinen, M. ; Siefring, C. ; Basu, S.
Author Organization(s):
NAVAL RESEARCH LAB WASHINGTON DC PLASMA PHYSICS DIV
Descriptive Note:
Interim rept.
Supplementary Note:
Prepared in collaboration with Advanced Power Technologies Inc., Minnesota Univ., and DESPA, Observatorie de Paris-Meudon, France.
Pagination:
0018

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
NRL/MR/6750--97-7979
Monitor Series:
PL*
 Subject Terms
Joint Capability Areas:
JCA_6_Net Centric; JCA_6.3.3_Spectrum Management; JCA_6.1_Information Transport; JCA_1.2.7_Experimentation; JCA_6.3_Net Management; JCA_1_Force Support; JCA_1.3_Human Capital Management; JCA_8_Building Partnerships; JCA_1.3.2_Personnel Management; JCA_5.3_Planning; JCA_5_Command and Control; JCA_8.2_Shape
Modernization Areas:
Space
Communities of Interest:
Space
Descriptor(s):
*PLASMAS(PHYSICS), *RADIO WAVES, HIGH POWER, IONOSPHERE, HIGH FREQUENCY, SPACE ENVIRONMENTS, ELECTRON DENSITY, POWER SPECTRA, HIGH ALTITUDE, RADIO TRANSMISSION, COMMUNICATION SATELLITES, MAGNETOSPHERE
Field(s)/Group(s):
Plasma Physics and Magnetohydrodynamics, Radiofrequency Wave Propagation
Keyword(s):
SPACE PLASMAS, HAARP(HIGH FREQUENCY ACTIVE AURORAL RESEARCH PROGRAM), PE63160N
Report Date:
1997 Nov 10
Creation Date:
1997 Dec 17