[PDF] Top 20 HF radar observations of high-aspect angle backscatter from the E-region
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HF radar observations of high-aspect angle backscatter from the E-region
... Fig. 9. The variation of d vel , d HAIR and d skip as a function of frequency for the example from Fig. 1a. The variations of 2d vel and 2d HAIR are also shown. foE with latitude, and the tilt of the magnetic ... See full document
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CUTLASS HF radar observations of high-velocity E-region echoes
... leave from Murmansk State Technical University, Sportivnaya 13, Murmansk 183056, Russia Received: 25 September 2000 – Revised: 27 February 2001 – Accepted: 28 February 2001 ...of high-velocity ... See full document
14
Multi-frequency observations of E-region HF radar aurora
... Multi-frequency HF radar observations of backscatter from the E-region within the auroral electrojets show that echo spectra tend to contain both a low and a high ... See full document
18
Multi-frequency observations of E-region HF radar aurora
... Multi-frequency HF radar observations of backscatter from the E-region within the auroral electrojets show that echo spectra tend to contain both a low and a high ... See full document
17
A classification of spectral populations observed in HF radar backscatter from the E region auroral electrojets
... Iceland radar was located in the eastward elec- trojet ...of radar scans from this interval, demon- strating once again the L-shell aligned nature of E region backscatter, and ... See full document
16
HF radar observations of ionospheric backscatter during geomagnetically quiet periods
... coherent backscatter from the F- region observed by the Tasman International Geospace En- vironment Radar (TIGER) Bruny Island HF radar is anal- ysed statistically in order to ... See full document
13
Simultaneous VHF radar backscatter and ionosonde observations of low-latitude E region
... the E s layer to be a single Gaussian layer, then in the presence of a downward electric field, it is expected that the height region above the height of the peak E s layer would be ...time E ... See full document
7
ANGEO - Investigation of the relationship between optical auroral forms and HF radar E region backscatter
... SuperDARN HF radars have been employed in the past to investigate the spectral characteristics of coherent backscatter from L-shell aligned features in the auroral E ...camera ... See full document
10
High resolution observations of spectral width features associated with ULF wave signatures in artificial HF radar backscatter
... width observations during the Pc4 events presented here is that Pc1 waves, in the form of both broad-band ESIC and narrower-band EMIC waves, are responsible for increasing the spectral width of the radar ... See full document
14
Aspect sensitive E- and F-region SPEAR-enhanced incoherent backscatter observed by the EISCAT Svalbard radar
... an aspect sensitivity study of SPEAR- induced ESR spectral enhancements from the E- and F- regions of the polar ...the region of influ- ence of SPEAR and field-of-view of the ...This ... See full document
17
Observations of HF-induced instability in the auroral E region
... the radar (Eliasson, ...the observations from Rietveld et al. (2002) in the Tromsø E region can be ex- plained by the mechanism of mode conversion close to the reflection ...enhanced ... See full document
6
Radar backscatter from plasma irregularities of the lower E region induced by neutral turbulence
... ation angle is plotted in Fig. 4b. It reflects the aspect angle dependence already displayed in ...ation angle range compared to a factor of 40 over the corresponding aspect ... See full document
8
Effects of high latitude atmospheric gravity wave disturbances on artificial HF radar backscatter
... multi-instrument observations, we have iden- tified perturbations in the location and intensity of artificial HF radar backscatter as being caused by the passage of TIDs through the pumped ... See full document
15
Effects of high-latitude atmospheric gravity wave disturbances on artificial HF radar backscatter
... multi-instrument observations, we have iden- tified perturbations in the location and intensity of artificial HF radar backscatter as being caused by the passage of TIDs through the pumped ... See full document
15
ANGEO - On determining the noon polar cap boundary from SuperDARN HF radar backscatter characteristics
... ions from the radar ...with high Doppler spectral width and the poleward ¯ow component by averaging the data for each scan in the following ...the radar backscatter with Doppler ... See full document
8
HF echo types revisited: aspect angle attenuation effects
... Pykkvibaer HF radar. The radar scans through 16 azimuthal directions (radar beams 0–15) in ...The radar measures a 17-lag Auto Correla- tion Function from which estimates of the ... See full document
11
Radar observations of artificial E-region field-aligned irregularities
... Artificial E region field aligned plasma density irregularities (FAIs) were generated using HAARP in four different experimental modes and observed with a coherent scatter radar imager located 450 km ... See full document
12
Climatology of GPS phase scintillation and HF radar backscatter for the high-latitude ionosphere under solar minimum conditions
... statistical high-latitude and mid-latitude ...cusp/cleft region sampled by differ- ent satellites for several ...dynamics. Observations suggest anisotropy of scintillation- causing irregularities ... See full document
16
Aspect angle dependence of the E region irregularity velocity at large flow angles
... lowest aspect angle; it is ...present observations of the E region irregularity phase velocity measured by the STARE Norway VHF radar at several locations with different ... See full document
10
Towards a synthesis of substorm electrodynamics: HF radar and auroral observations
... data from both ...of backscatter from TIGER increased considerably during the early stages of the expansion phase such that by ∼09:20 UT an enhanced dusk flow cell was clearly ...narrow ... See full document
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