Polarization of auroral backscatter at 50 MHz
نویسندگان
چکیده
منابع مشابه
Gbt Polarization Observations of 100 Pulsars at 774 Mhz
We report on polarimetric observations of 100 pulsars centered on 774 MHz, made using the Green Bank Telescope (GBT), presenting their polarization profiles and polarized flux densities and comparing them with previous observations when possible. For 67 pulsars, these are the first such measurements made. Polarization profiles of 8 millisecond pulsars in our sample show wide profiles and flat p...
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Faraday Rotation of the plane of polarization of broad-band signals, during propagation through the intervening medium, manifests as quasi-sinusoidal spectral modulations when observed with a telescope sensitive to a single linear polarization. Such a modulation can be exploited to study linear polarization characteristics of pulsars (Suleimanova, Volodin, & Shitov, 1988; Smirnova & Boriakoff 1...
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759 Soil water content (θ, m3 m−3) is a basic hydrologic parameter that affects groundwater recharge, surface water fl ow, transpiration, and carbon fi xation. Electronic monitoring of θ facilitates the study of those processes by providing detailed temporal data. Most instruments currently in use measure soil dielectric permittivity, directly or indirectly, and then calculate θ with an equatio...
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Mixing models help describe the contribution of liquid, gas, and solid phases to the bulk dielectric permittivity of porous materials. They are particularly useful when studying the electromagnetic properties of the vadose zone using TDR or GPR techniques. The objective of this research was to evaluate the Lichtenecker Mixing Model applied to undisturbed and repacked soil data collected with a ...
متن کاملCCE 92-05 intercomparison of ac-dc voltage transfer standards at high frequencies (1-50 MHz)
From August 1995 to May 1998, the CCE 92-05 intercomparison of ac–dc voltage transfer standards at high frequencies was carried out. Two travel standards were measured by 15 national standards institutes. The results in the frequency range from 1 to 50 MHz show a good agreement between the majority of participants. The span of the majority of the reported ac–dc differences at 50 MHz is less tha...
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ژورنال
عنوان ژورنال: Radio Science
سال: 1997
ISSN: 0048-6604
DOI: 10.1029/96rs03315