[1] A review of the spectral characteristics of radar aurora with a focus on the behavior over a wide range of frequencies gives a different perspective on several issues concerning auroral backscatter. Some of the conclusions from this study are as follows: (1) It appears most likely (but has certainly not been proven) that auroral backscatter at large geometric magnetic aspect angles has the same general characteristics at all frequencies; VHF observations showing other characteristics are most likely refracted to small aspect angle by sporadic E. (2) The broadest spectra are observed at neither HF or UHF, but at VHF frequencies, but it is unclear whether this is a topic for theoreticians to consider, or if it is an observational effect. ...
Multi-frequency observations of E-region coherent backscatter from decametre waves reveal that auror...
International audienceWe present evidence for the observation of high-aspect angle HF radar backscat...
Abstract. We present evidence for the observation of high-aspect angle HF radar backscatter from the...
For many years, researchers have been puzzled by the occurrence of strong, large aspect angle radar ...
Observations of E region backscatter by the Ice-land East SuperDARN HF radar from the 30 minute per...
This thesis presents the studies of aurora using three observation instruments; the SAPPHIRE SOUTH ...
The SuperDARN HF radars have been employed in the past to investigate the spectral characteristics ...
[1] Recent observations of auroral backscatter at frequencies from 10 to 933 MHz have found spectral...
The 2D morphology of coherent HF radar and optical cusp aurora has been studied for conditions of p...
Observations of HF radar backscatter from the auroral electrojet E region indicate the presence of ...
The investigation of the high-latitude aurora by means of the V.H.F. auroral radar SABRE, (Swedish A...
Simultaneous all-sky camera and HF radar observations of the visual and E-region radar aurora in t...
In this thesis, several aspects of HF coherent backscatter from the high-latitude E and F regions ar...
The high-spatial-resolution observations of the auroral E-region echoes by the Super Dual Auroral R...
Haldoupis et al. (1982), Uspensky et al. (1983) and Starkov et al. (1983) have recently found that t...
Multi-frequency observations of E-region coherent backscatter from decametre waves reveal that auror...
International audienceWe present evidence for the observation of high-aspect angle HF radar backscat...
Abstract. We present evidence for the observation of high-aspect angle HF radar backscatter from the...
For many years, researchers have been puzzled by the occurrence of strong, large aspect angle radar ...
Observations of E region backscatter by the Ice-land East SuperDARN HF radar from the 30 minute per...
This thesis presents the studies of aurora using three observation instruments; the SAPPHIRE SOUTH ...
The SuperDARN HF radars have been employed in the past to investigate the spectral characteristics ...
[1] Recent observations of auroral backscatter at frequencies from 10 to 933 MHz have found spectral...
The 2D morphology of coherent HF radar and optical cusp aurora has been studied for conditions of p...
Observations of HF radar backscatter from the auroral electrojet E region indicate the presence of ...
The investigation of the high-latitude aurora by means of the V.H.F. auroral radar SABRE, (Swedish A...
Simultaneous all-sky camera and HF radar observations of the visual and E-region radar aurora in t...
In this thesis, several aspects of HF coherent backscatter from the high-latitude E and F regions ar...
The high-spatial-resolution observations of the auroral E-region echoes by the Super Dual Auroral R...
Haldoupis et al. (1982), Uspensky et al. (1983) and Starkov et al. (1983) have recently found that t...
Multi-frequency observations of E-region coherent backscatter from decametre waves reveal that auror...
International audienceWe present evidence for the observation of high-aspect angle HF radar backscat...
Abstract. We present evidence for the observation of high-aspect angle HF radar backscatter from the...