Results 41 to 50 of about 5,343,913 (293)
Ground-based Observations for the Upper Atmosphere at King Sejong Station, Antarctica [PDF]
Journal of Astronomy and Space Sciences, 2014 Since the operation of the King Sejong Station (KSS) started in Antarctic Peninsula in 1989, there have been continuous efforts to perform the observation for the upper atmosphere. The observations during the initial period of the station include Fabry-
Geonhwa Jee +3 more
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Observational Evidence of Nonlinear Wave‐Wave Interaction Over Antarctic MLT Region
Journal of Geophysical Research: Space Physics, 2023 AbstractUsing meteor radar observations over King Sejong Station (62.22°S, 58.78°W) in the Antarctic Peninsula, we investigated the wave‐wave interaction in the mesosphere and lower thermosphere (MLT) region. We analyzed hourly horizontal wind measurements at altitudes of 84–96 km from March 2016 through February 2017 and found that the MLT region is ...
Jaewook Lee +6 more
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Statistical Study on Spatial Distribution of Frequency‐Chirping ECH Elements by Van Allen Probes
Geophysical Research Letters, 2023 Electron cyclotron harmonic (ECH) waves can scatter electrons into the atmosphere causing diffuse aurora with diffusion coefficients depending on the wave frequency. Here we report the Van Allen Probe observations of chirping ECH elements, which are fine
Si Liu +6 more
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Mesosphere and Lower Thermosphere
Atmosphere, 2023 The mesosphere and low thermosphere (MLT) region is defined as the region of the atmosphere between approximately 60 and 110 km in height [...]
Chen Zhou, Zhibin Yu
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A comparison of MLT wind between meteor radar chain data and SD-WACCM results
Earth and Planetary Physics, 2022 A meteor radar chain located along the 120°E meridian in the Northern Hemisphere from low to middle latitudes provides long-term horizontal wind observations of the mesosphere and lower thermosphere (MLT) region.
BaoZhu Zhou +8 more
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Terdiurnal tides in the MLT region over Cachoeira Paulista (22.7ºS; 45ºW) [PDF]
Revista Brasileira de Geofísica, 2007 Five years of winds measurements obtained by a SkiYmet meteor radar at Cachoeira Paulista (22.7oS, 45.0oW) are used to investigate the terdiurnal tide. This type of tide is frequently observed in the meteor region but the mechanisms responsible for its production are not yet completely explained.
Tokumoto, Aparecido Seigim +2 more
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Ozone Measurements with Meteors: A Revisit [PDF]
, 2017 Understanding the role of ozone in the Mesosphere/Lower Thermosphere (MLT) region is essential for understanding the atmospheric processes in the upper atmosphere.
Han, Summer Xia, Ye, Quan-Zhi
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CLINICAL MORPHOLOGY OF LIVER: MALIGNANT TUMORS
Žurnal Grodnenskogo Gosudarstvennogo Medicinskogo Universiteta, 2018 Background. Among focal lesions of the liver, malignant liver tumors (MLTs) are recorded precisely. According to the WHO, MLTs are the fifth most frequent forms of cancer in men and the seventh in women and rank third among the causes of death from ...
Prokopchik N. I, Tsyrkunov V. M
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Opinion: Recent developments and future directions in studying the mesosphere and lower thermosphere [PDF]
Atmospheric Chemistry and Physics, 2023 This article begins with a review of important advances in the chemistry and related physics of the mesosphere and lower thermosphere (MLT) region of the atmosphere that have occurred over the past 2 decades, since the founding of Atmospheric Chemistry ...
J. M. C. Plane +5 more
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