Spatial observations by the CUTLASS coherent scatter radar of ionospheric modification by high power radio waves, Ann

Abstract. Results are presented from an experimental campaign in April 1996, in which the new CUTLASS (Co-operative UK twin-located Auroral Sounding Sys-tem) coherent scatter radar was employed to observe artificial field aligned irregularities (FAI) generated by the EISCAT (European Incoherent SCAT...

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Bibliographic Details
Main Authors: G. E. Bond, T. R. Robinson, P. Eglitis, D. M. Wright, A. J. Stocker, M. T. Rietveld, T. B. Jones
Other Authors: The Pennsylvania State University CiteSeerX Archives
Format: Text
Language:English
Published: 1997
Subjects:
Norway
Tromsø
EISCAT
Iceland
Online Access:http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.548.1113
http://www.ann-geophys.net/15/1412/1997/angeo-15-1412-1997.pdf
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Summary:Abstract. Results are presented from an experimental campaign in April 1996, in which the new CUTLASS (Co-operative UK twin-located Auroral Sounding Sys-tem) coherent scatter radar was employed to observe artificial field aligned irregularities (FAI) generated by the EISCAT (European Incoherent SCATter) heating facility at Tromsø, Norway. The distribution of back-scatter intensity from within the heated region has been investigated both in azimuth and range with the Finland component of CUTLASS, and the first observations of artificial irregularities by the Iceland radar are also presented. The heated region has been measured to extend over a horizontal distance of 170 50 km, which by comparison with a model of the heater beam pattern corresponds to a threshold electric field for FAI of between 0.1 and 0:01V/m. Dierences between field-aligned and vertical propagation heating are also presented. 1

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