Results 11 to 20 of about 20,447 (217)

Meteor velocity determination with plasma physics [PDF]

open access: yesAtmospheric Chemistry and Physics, 2004
Understanding the global meteor flux at Earth requires the measurement of meteor velocities. While several radar methods exist for measuring meteor velocity, they may be biased by plasma reflection mechanisms.
L. P. Dyrud   +6 more
doaj   +1 more source

Radar and optical leonids [PDF]

open access: yesAtmospheric Chemistry and Physics, 2004
We present joint optical-radar observations of meteors collected near the peak of the Leonid activity in 2002. We show four examples of joint detections with a large, phased array L-band radar and with intensified video cameras.
N. Brosch   +4 more
doaj   +4 more sources

Meteor Radar for Investigation of the MLT Region: A Review

open access: yesAtmosphere
This is an introductory review of modern meteor radar and its application to the measurement of the dynamical parameters of the Mesosphere Lower Thermosphere (MLT) Region within the altitude range of around 70 to 110 km, which is where most meteors are ...
Iain M. Reid
doaj   +3 more sources

Radiant measurement accuracy of micrometeors detected by the Arecibo 430 MHz Dual-Beam Radar [PDF]

open access: yesAtmospheric Chemistry and Physics, 2004
Precise knowledge of the angle between the meteor vector velocity and the radar beam axis is one of the largest source of errors in the Arecibo Observatory (AO) micrometeor observations. In this paper we study ~250 high signal-to-noise ratio (SNR) meteor
D. Janches   +3 more
doaj   +3 more sources

First Comparative Analysis of the Simultaneous Horizontal Wind Observations by Collocated Meteor Radar and FPI at Low Latitude through 892.0-nm Airglow Emission

open access: yesRemote Sensing, 2021
The Fabry–Pérot interferometer (FPI) and meteor radar are two important techniques for measuring the horizontal wind field in mesopause region, the observations of which still lack comprehensive comparison.
Shengyang Gu   +7 more
doaj   +1 more source

NEW CHUNG-LI METEOR RADAR IN TAIWAN – PRELIMINARY RESULTS [PDF]

open access: yesProceedings on Engineering Sciences
A new 39.9 MHz meteor radar was implemented in 2022 in Jhongli area, Taiwan, which is operated by National Central University in Taiwan and referred to as Chung-Li meteor radar. This radar is a bistatic radar with transmitter and receiver systems located
Ching-Lun Su   +6 more
doaj   +1 more source

A Machine Learning Algorithm to Detect and Analyze Meteor Echoes Observed by the Jicamarca Radar

open access: yesRemote Sensing, 2023
We present a machine-learning approach to detect and analyze meteor echoes (MADAME), which is a radar data processing workflow featuring advanced machine-learning techniques using both supervised and unsupervised learning.
Yanlin Li   +4 more
doaj   +1 more source

Interferometric meteor radar phase calibration using meteor echoes [PDF]

open access: yesRadio Science, 2004
A technique for the phase calibration of interferometric meteor radar systems is presented. This technique uses phase differences of meteor echoes measured between spaced receiving antennas. The technique can be applied to data collected during routine observations, effectively allowing self phase calibration without the need for additional hardware or
Holdsworth, D.   +4 more
openaire   +2 more sources

A comparative study of mesospheric zonal wind observations from Na lidar and multistatic meteor radars above Hefei, China [PDF]

open access: yesAtmospheric Measurement Techniques
This study compares zonal wind measurements from a Na lidar at the University of Science and Technology of China (USTC) with those from the multistatic meteor radar system near Hefei, China.
C. Ban   +17 more
doaj   +1 more source

Initial Results of Meteor Wind with Langfang Medium Frequency Radar

open access: yesAtmosphere, 2020
We conducted meteor observations during the Leonid meteor shower on 16 November 2017 and 17 November 2018 with Langfang medium frequency (MF) radar (116° E, 40° N). This was the first nighttime meteor observation by MF radar in mid-latitude China.
Bing Cai   +3 more
doaj   +1 more source

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