Wuhan MST radar: Technical features and Validation of wind observations
Autor: | Weifan Zhang, Liangliang Zhang, Erxiao Liu, Shaodong Zhang, Wanlin Gong, Huina Song, Huangyuan Zeng, Huan Zhang, Mingkun Su, Feilong Chen, Lei Qiao, Gang Chen, Xuesi Cai, Qi Yao |
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Rok vydání: | 2020 |
Předmět: |
Atmospheric Science
010504 meteorology & atmospheric sciences lcsh:TA715-787 lcsh:Earthwork. Foundations Doppler radar 0211 other engineering and technologies 02 engineering and technology Column (database) 01 natural sciences lcsh:Environmental engineering law.invention Troposphere law Radiosonde Clutter lcsh:TA170-171 Antenna (radio) Radar Stratosphere Geology Remote sensing 021101 geological & geomatics engineering 0105 earth and related environmental sciences |
Zdroj: | Atmospheric Measurement Techniques, Vol 13, Pp 5697-5713 (2020) |
ISSN: | 1867-8548 |
Popis: | The Wuhan mesosphere–stratosphere–troposphere (MST) radar is a 53.8 MHz monostatic Doppler radar, located in Chongyang, Hubei Province, China, and has the capability to observe the dynamics of the mesosphere–stratosphere–troposphere region in the subtropical latitudes. The radar system has an antenna array of 576 Yagi antennas, and the maximum peak power is 172 kW. The Wuhan MST radar is efficient and cost-effective and employs more simplified and more flexible architecture. It includes 24 big transmitter–receiver (TR) modules, and the row or column data port of each big TR module connects 24 small TR modules via the corresponding row or column feeding network. Each antenna is driven by a small TR module with peak output power of 300 W. The arrangement of the antenna field, the functions of the timing signals, the structure of the TR modules, and the clutter suppression procedure are described in detail in this paper. We compared the MST radar observation results with other instruments and related models in the whole MST region for validation. Firstly, we made a comparison of the horizontal winds in the troposphere and low stratosphere observed by the Wuhan MST radar with the radiosonde on 22 May 2016, as well as with the ERA-Interim data sets (2016 and 2017) in the long term. Then, we made a comparison of the observed horizontal winds in the mesosphere with the meteor radar and the Horizontal Wind Model 14 (HWM-14) model in the same way. In general, good agreements can be obtained, and this indicates that the Wuhan MST is an effective tool to measure the three-dimensional wind fields of the MST region. |
Databáze: | OpenAIRE |
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