Microwave measurements of variations in night mesospheric ozone over Moscow

2019 ◽  
Author(s):  
Sergey Rozanov ◽  
Alexey Zavgorodniy ◽  
Alexander N. Ignatyev
Keyword(s):  
Microwave Measurements ◽  
Mesospheric Ozone

Microwave Measurements of Stratospheric and Mesospheric Ozone in Moscow

2018 ◽  
Author(s):  
S. B. Rozanov ◽  
A. S. Zavgorodniy ◽  
S. V. Solomonov ◽  
E. P. Kropotkina ◽  
A. N. Lukin ◽  
...  
Keyword(s):  
Microwave Measurements ◽  
Mesospheric Ozone

scholarly journals Penetration of MeV electrons into the mesosphere accompanying pulsating aurorae

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Y. Miyoshi ◽  
K. Hosokawa ◽  
S. Kurita ◽  
S.-I. Oyama ◽  
Y. Ogawa ◽  
...  
Keyword(s):  
High Energy ◽  
Daily Basis ◽  
Maximum Energy ◽  
Energy Electron ◽  
High Energy Electron ◽  
Whistler Mode ◽  
Chorus Waves ◽  
Mesospheric Ozone ◽  
Field Lines ◽  
Eiscat Radar

AbstractPulsating aurorae (PsA) are caused by the intermittent precipitations of magnetospheric electrons (energies of a few keV to a few tens of keV) through wave-particle interactions, thereby depositing most of their energy at altitudes ~ 100 km. However, the maximum energy of precipitated electrons and its impacts on the atmosphere are unknown. Herein, we report unique observations by the European Incoherent Scatter (EISCAT) radar showing electron precipitations ranging from a few hundred keV to a few MeV during a PsA associated with a weak geomagnetic storm. Simultaneously, the Arase spacecraft has observed intense whistler-mode chorus waves at the conjugate location along magnetic field lines. A computer simulation based on the EISCAT observations shows immediate catalytic ozone depletion at the mesospheric altitudes. Since PsA occurs frequently, often in daily basis, and extends its impact over large MLT areas, we anticipate that the PsA possesses a significant forcing to the mesospheric ozone chemistry in high latitudes through high energy electron precipitations. Therefore, the generation of PsA results in the depletion of mesospheric ozone through high-energy electron precipitations caused by whistler-mode chorus waves, which are similar to the well-known effect due to solar energetic protons triggered by solar flares.

Microwave measurements of coal

Radio Science ◽  
1976 ◽  
Vol 11 (4) ◽  
pp. 413-418 ◽  
Author(s):  
C. A. Balanis ◽  
W. S. Rice ◽  
N. S. Smith
Keyword(s):  
Microwave Measurements
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