Parametric interactions of whistler mode waves and lower-hybrid resonance waves in the upper ionosphere and magnetosphere

1999 ◽  
Vol 42 (8) ◽  
pp. 647-650
Author(s):  
V. Yu. Trakhtengerts ◽  
M. J. Rycroft
Keyword(s):  
Lower Hybrid ◽  
Whistler Mode ◽  
Hybrid Resonance ◽  
Whistler Mode Waves ◽  
Lower Hybrid Resonance ◽  
Upper Ionosphere ◽  
Parametric Interactions

scholarly journals Co-Existance of Lightning Generated Whistlers, Hiss and Lower Hybrid Noise Observed by e- POP (SWARM-E) –RRI

2020 ◽  
Author(s):  
Ashanthi Maxworth ◽  
Mark Gołkowski ◽  
Glenn Hussey
Keyword(s):  
Geomagnetic Field ◽  
Radiation Belts ◽  
Radio Receiver ◽  
Lower Hybrid ◽  
Wave Power ◽  
Dipole Antennas ◽  
Whistler Mode ◽  
Hybrid Resonance ◽  
Whistler Mode Waves ◽  
Lower Hybrid Resonance

Whistler mode waves play a major role in regulating the lifetime of trapped electrons in the Earth's radiation belts. Specifically, whistler mode hiss waves are one of the mechanisms that maintains the slot region between the inner and outer radiation belts. The generation mechanism of hiss is a topic still under debate with at least three prominent theories present in the literature. Lightning generated whistlers in their ducted or non-ducted modes, are considered to be one of the possible sources of hiss. We present a study of new observations from the Radio Receiver Instrument (RRI) on the Enhanced Polar Outflow Probe (ePOP: currently known as SWARM-E). RRI consists of two orthogonal dipole antennas, which enables polarization measurements, when the satellite boresight is parallel to the geomagnetic field. Here we present 75 passes of ePOP - RRI from 2014 - 2018, in which lightning whistlers and hiss waves were observed. In more than 50% of those passes hiss is found to co-exist with the lightning whistlers. Moreover, the whistler observations are correlated with observations of wave power at the lower-hybrid resonance. The observations and a whistler mode ray-tracing study suggest that multiple-hop lightning induced whistlers can be a source of hiss and plasma instabilities in the magnetosphere.

scholarly journals Coexistence of Lightning Generated Whistlers, Hiss and Lower Hybrid Noise Observed by e-POP (SWARM-E)–RRI

Atmosphere ◽  
2020 ◽  
Vol 11 (2) ◽  
pp. 177
Author(s):  
Ashanthi Maxworth ◽  
Glenn Hussey ◽  
Mark Gołkowski
Keyword(s):  
Geomagnetic Field ◽  
Radiation Belts ◽  
Radio Receiver ◽  
Lower Hybrid ◽  
Wave Power ◽  
Dipole Antennas ◽  
Whistler Mode ◽  
Hybrid Resonance ◽  
Whistler Mode Waves ◽  
Lower Hybrid Resonance

Whistler mode waves play a major role in regulating the lifetime of trapped electrons in the Earth’s radiation belts. Specifically, interaction with whistler mode hiss waves is one of the mechanisms that maintains the slot region between the inner and outer radiation belts. The generation mechanism of hiss is a topic still under debate with at least three prominent theories present in the literature. Lightning generated whistlers in their ducted or non-ducted modes are considered to be one of the possible sources of hiss. We present a study of new observations from the Radio Receiver Instrument (RRI) on the Enhanced Polar Outflow Probe (ePOP: also known as SWARM-E). RRI consists of two orthogonal dipole antennas, which enables polarization measurements, when the satellite boresight is parallel to the geomagnetic field. Here we present 105 ePOP - RRI events from 2014–2018, in which lightning whistlers(75) and hiss waves(39) were observed. In more than 50% of those whistler observations, hiss found to co-exist. Moreover, the whistler observations are correlated with observations of wave power at the lower-hybrid resonance. The observations and a whistler mode ray-tracing study suggest that multiple-hop lightning induced whistlers can be a source of hiss and plasma instabilities in the magnetosphere.

scholarly journals Cluster observations of mid-latitude hiss near the plasmapause

2004 ◽  
Vol 22 (7) ◽  
pp. 2565-2575 ◽  
Author(s):  
A. Masson ◽  
U. S. Inan ◽  
H. Laakso ◽  
O. Santolík ◽  
P. Décréau
Keyword(s):  
Spectral Width ◽  
Lower Hybrid ◽  
First Year ◽  
Strongly Correlated ◽  
Central Frequency ◽  
Whistler Mode ◽  
Hybrid Resonance ◽  
Electromagnetic Emissions ◽  
Electron Gyrofrequency ◽  
Lower Hybrid Resonance

Abstract. In the vicinity of the plasmapause, around the geomagnetic equator, the four Cluster satellites often observe banded hiss-like electromagnetic emissions (BHE); below the electron gyrofrequency but above the lower hybrid resonance, from 2kHz to 10kHz. We show that below 4kHz, these waves propagate in the whistler mode. Using the first year of scientific operations of WHISPER, STAFF and WBD wave experiments on Cluster, we have identified the following properties of the BHE waves: (i) their location is strongly correlated with the position of the plasmapause, (ii) no MLT dependence has been found, (iii) their spectral width is generally 1 to 2kHz, and (iv) the central frequency of their emission band varies from 2kHz to 10kHz. All these features suggest that BHE are in fact mid-latitude hiss emissions (MLH). Moreover, the central frequency was found to be correlated with the Kp index. This suggests either that these banded emissions are generated in a given f/fce range, or that there is a Kp dependent Doppler shift between the satellites and a possible moving source of the MLH.

Wave collapse at the lower‐hybrid resonance

1993 ◽  
Vol 5 (9) ◽  
pp. 3148-3162 ◽  
Author(s):  
V. D. Shapiro ◽  
V. I. Shevchenko ◽  
G. I. Solov’ev ◽  
V. P. Kalinin ◽  
R. Bingham ◽  
...  
Keyword(s):  
Lower Hybrid ◽  
Hybrid Resonance ◽  
Wave Collapse ◽  
Lower Hybrid Resonance

The role of lower hybrid resonance and helicon waves excitations in a magnetized plasma for coating production of complex crystalline structures as hydroxyapatite

Vacuum ◽  
2017 ◽  
Vol 146 ◽  
pp. 233-245 ◽  
Author(s):  
Elvis O. López ◽  
Fábio O. Borges ◽  
Alexandre M. Rossi ◽  
Ricardo M.O. Galvão ◽  
Alexandre Mello
Keyword(s):  
Magnetized Plasma ◽  
Lower Hybrid ◽  
Crystalline Structures ◽  
Hybrid Resonance ◽  
Helicon Waves ◽  
Lower Hybrid Resonance
Sign in / Sign up

Export Citation Format

Share Document