scholarly journals A Case Study of Energy Deposition and Absorption by Magnetic Cloud Electrons and Protons over the High Latitude Stations: Effects on the Mesosphere and Lower Thermosphere

2014 ◽  
Vol 25 (2) ◽  
pp. 219 ◽  
Author(s):  
Olakunle Ogunjobi ◽  
Venkataraman Sivakumar ◽  
Nkanyiso Mbatha
Keyword(s):  
High Latitude ◽  
Energy Deposition ◽  
Magnetic Cloud ◽  
Lower Thermosphere ◽  
Mesosphere And Lower Thermosphere

scholarly journals Gravity Wave Breaking Associated with Mesospheric Inversion Layers as Measured by the Ship-Borne BEM Monge Lidar and ICON-MIGHTI

Atmosphere ◽  
2021 ◽  
Vol 12 (11) ◽  
pp. 1386
Author(s):  
Robin Wing ◽  
Milena Martic ◽  
Colin Triplett ◽  
Alain Hauchecorne ◽  
Jacques Porteneuve ◽  
...  
Keyword(s):  
Gravity Waves ◽  
Inversion Layer ◽  
Lower Thermosphere ◽  
Breaking Waves ◽  
Meridional Wind ◽  
Weather Forecasts ◽  
Wind Speeds ◽  
Mesosphere And Lower Thermosphere ◽  
Rayleigh Lidar

During a recent 2020 campaign, the Rayleigh lidar aboard the Bâtiment d’Essais et de Mesures (BEM) Monge conducted high-resolution temperature measurements of the upper Mesosphere and Lower Thermosphere (MLT). These measurements were used to conduct the first validation of ICON-MIGHTI temperatures by Rayleigh lidar. A double Mesospheric Inversion Layer (MIL) as well as shorter-period gravity waves was observed. Zonal and meridional wind speeds were obtained from locally launched radiosondes and the newly launched ICON satellite as well as from the European Centre for Medium-Range Weather Forecasts (ECMWF-ERA5) reanalysis. These three datasets allowed us to see the evolution of the winds in response to the forcing from the MIL and gravity waves. The wavelet analysis of a case study suggests that the wave energy was dissipated in small, intense, transient instabilities about a given wavenumber in addition to via a broad spectrum of breaking waves. This article will also detail the recent hardware advances of the Monge lidar that have allowed for the measurement of MILs and gravity waves at a resolution of 5 min with an effective vertical resolution of 926 m.

High-latitude tidal behavior in the mesosphere and lower thermosphere

1989 ◽  
Vol 51 (7-8) ◽  
pp. 595-608 ◽  
Author(s):  
S.K. Avery ◽  
R.A. Vincent ◽  
A. Phillips ◽  
A.H. Manson ◽  
G.J. Fraser
Keyword(s):  
High Latitude ◽  
Lower Thermosphere ◽  
Mesosphere And Lower Thermosphere

scholarly journals A high-latitude 8-hour wave in the mesosphere and lower thermosphere

2005 ◽  
Vol 110 (A9) ◽  
Author(s):  
Q. Wu ◽  
N. J. Mitchell ◽  
T. L. Killeen ◽  
S. C. Solomon ◽  
P. T. Younger
Keyword(s):  
High Latitude ◽  
Lower Thermosphere ◽  
Mesosphere And Lower Thermosphere
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