Results 91 to 100 of about 20,447 (217)
地球与行星物理论评Sudden stratospheric warming (SSW) is a violent atmospheric disturbance in the polar region of the winter hemisphere. The drastic changes in temperature and wind during SSWs are considered to be the main reasons for the abnormal increase in the energy of
Zheng Ma, Yun Gong, Shaodong Zhang
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Comparison of meteor radar and satellite winds in the Brazilian equatorial region [PDF]
Annales GeophysicaeUsing data collected from a meteor radar deployed at São João do Cariri (7.4° S, 36.5° W) and from the TIMED Doppler Interferometer (TIDI) on board the Thermosphere-Ionosphere-Mesosphere Energetics and Dynamics (TIMED) satellite for 2006, comparisons of ...
A. R. Paulino +7 more
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Observation of meteors by MST radar [PDF]
The observation of meteor trails by a vertical mesosphere - stratosphere - troposphere (MST) radar beam has the advantage of good height resolution and an approximate knowledge of the zenith angle since the trails are horizontal or near-horizontal.
Jones, William, Kingsley, S. P.
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Wind regime peculiarities in the lower thermosphere in the winter of 1983/84 [PDF]
Temporal variations of prevailing winds at 90 to 100 km obtained from measurements carried out in winter 1983 to 1984 at three sites in the USSR and two sites in East Germany are reported.
Greisiger, K. M. +6 more
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Diurnal and annual variations of meteor rates at the arctic circle [PDF]
Atmospheric Chemistry and Physics, 2004 Meteors are an important source for (a) the metal atoms of the upper atmosphere metal layers and (b) for condensation nuclei, the existence of which are a prerequisite for the formation of noctilucent cloud particles in the polar mesopause region.
W. Singer, U. von Zahn, J. Weiß
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Observations of meteor showers with the meteor radar of KFU [PDF]
Contributions of the Astronomical Observatory Skalnaté Pleso, 2021 S. Kalabanov +4 more
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On the spatial structure of the Perseids meteor stream [PDF]
The analysis of radar observations of the Perseid meteor stream conducted in an ionospherical laboratory in the period from 1964 to 1981 is presented. The Perseids meteor rates were determined by the fluctuation method.
Andreev, G. V. +2 more
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Bias adjustment of satellite precipitation estimation using ground-based measurement: A case study evaluation over the southwestern United States [PDF]
, 2009 Reliable precipitation measurement is a crucial component in hydrologic studies. Although satellite-based observation is able to provide spatial and temporal distribution of precipitation, the measurements tend to show systematic bias.
Boushaki, FI +5 more
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Historical aspects of radar atmospheric dynamics [PDF]
A review of the history of radar techniques which have been applied to atmospheric observation is given. The author starts with ionosphere observation with the ionosonde, symbolizing as it does the earliest history of radar observation, and proceeds to ...
Kato, Susumu
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Dynamic Calibration Method of Multichannel Amplitude and Phase Consistency in Meteor Radar
Remote SensingMeteor radar is a widely used technique for measuring wind in the mesosphere and lower thermosphere, with the key advantage of being unaffected by terrestrial weather conditions, thus enabling continuous operation. In all-sky interferometric meteor radar
Yujian Jin +5 more
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