Wuhan Atmosphere Radio Exploration (WARE) radar: System design and online winds measurements

Zhao, Zhengyu; Zhou, Chen; Qing, Haiyin; Yang, Guobin; Zhang, Yuannong; Chen, Gang; Hu, Yaogai

doi:10.1002/rds.20040

Cited by 16 publications

(12 citation statements)

References 22 publications

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“…The peak power of MST radar is beyond 170 kW transmitted through a 24 × 24 antenna array at operating frequency of 53.8 MHz. Zhao et al (2013) described technically the MST radar system in detail. The radar works by alternant three modes with different height resolutions.…”

Section: Datamentioning

confidence: 99%

Quasi 10‐ and 16‐Day Wave Activities Observed Through Meteor Radar and MST Radar During Stratospheric Final Warming in 2015 Spring

Huang

Zhang

et al. 2019

JGR Atmospheres

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By combining observations from three meteor radars and a mesosphere‐stratosphere‐troposphere radar arranged along the 120°E meridian with reanalysis data from 20 February to 20 May 2015, we study the stratospheric final warming (SFW) in 2015 spring and planetary wave activities from the troposphere to the mesosphere and lower thermosphere (MLT) at different latitudes. There are two successive warming events with the polar mean temperature rises of 24 and 9 K at 10‐hPa level. By means of the two warming events separated by only several days, the mean temperature increases by nearly 20 K, and the mean zonal wind decreases from more than 30 m/s to about −10 m/s; thus, seasonal transition of the polar circulation is completed. The investigation shows that the quasi 10‐ (Q10DW) and 16− (Q16DW)day waves occur around the SFW. In the troposphere, their amplitudes are close to 10 m/s in the wind field. At 10‐hPa level of the stratosphere, the strong wave activities arise before the SFW, while in the MLT, the waves are amplified following the SFW with the amplitude peaks about 10 days after the SFW onset. The wave amplitude in the MLT tends to increase in the zonal wind but decrease in the meridional wind with decreasing latitude, which is roughly consistent with the Hough modes. Hence, the Q10DW and Q16DW in the MLT are distinct from those in the stratosphere, and they are likely to be generated and strengthened in situ in the upper stratosphere and MLT.

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Section: Datamentioning

confidence: 99%

Quasi 10‐ and 16‐Day Wave Activities Observed Through Meteor Radar and MST Radar During Stratospheric Final Warming in 2015 Spring

Huang

Zhang

et al. 2019

JGR Atmospheres

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“…After 3-month trial observations, it was put into routine operation in 2012. A detailed description of the radar including its specifications, signal processing, and data analysis is given by Zhao et al (2013). Here we only provide the primary parameters of the radar used for our study: the operating frequency is 53.8 MHz, the peak power is 172 kW, and the radar antenna system arranged in 24 × 24 square matrix is composed of 576 Yagi-Uda units with horizontal lin- ear polarization.…”

Section: Data Descriptionmentioning

confidence: 99%

WHU VHF radar observations of the diurnal tide and its variability in the lower atmosphere over Chongyang (114.14° E, 29.53° N), China

et al. 2015

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Abstract. The diurnal tide (DT) and its variability in the lower atmosphere over Chongyang (114.14° E, 29.53° N) were studied based on the newly established Wuhan University (WHU) VHF radar observations with the height intervals of 0.145 km (below 9 km) and 0.58 km (above 9 km) in the whole year of 2012. We find that the DT was the dominant tidal component and showed remarkable height and season variations. A prominent seasonally dependent height variability characteristic is that maximum DT amplitude usually occurs around 6 km in the winter and spring months, which might be due to the tidal wave energy concentration arising from the reflections from the strong eastward tropospheric jet around 13 km and the ground surface. Our results suggest that the background wind is a crucial cause for height variability and seasonal variability of DT. In April 2012, a notable strengthening of DT is observed. Meanwhile, the significant higher harmonics of tides, i.e., the semidiurnal, terdiurnal, and even quarterdiurnal tides, can also be observed, which has seldom been reported. Interestingly, these four tidal components displayed consistent short-term variability, implying that they were excited by the same dramatically varying tidal source. In addition, we identified two symptoms of the coupling of DT and planetary waves (PWs), which can also lead to the short-term DT variability. One is the sum and difference interactions between DT and PWs, causing the tidal amplitude short-term variability as a consequence of the energy exchange among the interacting waves. The other one is the modulation of DT by PWs, leading to that the amplitude of DT varies with the periods of the PWs.

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“…The phased array of the WARE radar consists of 24 × 24 threeelement Yagi-Uda antennas that cover an area of 10,000 m 2 . The WARE radar works with a frequency of 53.8 MHz, a peak power over 170 kW, and a power aperture area product of 2.0 × 10 8 W m 2 [Zhao et al, 2011[Zhao et al, , 2013. In terms of detection height, the radar works in three modes, which are (a) low mode: 3.0-10 km, range resolution of 150 m, vertical velocity resolution~0.14 m/s, and horizontal velocity resolution~0.49 m/s; (b) intermediate mode:…”

Section: Introductionmentioning

confidence: 99%

“…11-25 km, range resolution of 600 m, vertical velocity resolution~0.14 m/s, and horizontal velocity resolution~0.49 m/s; and (c) high mode: 60-90 km, range resolution of 1200 m, vertical velocity resolutioñ 0.14 m/s, and horizontal velocity resolution~0.49 m/s [Zhao et al, 2013].…”

Section: Introductionmentioning

confidence: 99%

A statistical study of inertia gravity waves in the troposphere based on the measurements of Wuhan Atmosphere Radio Exploration (WARE) radar

et al. 2014

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Wuhan atmosphere radio exploration (WARE) radar is the first mesosphere-stratosphere-troposphere radar to have become operative in the mainland of China and is dedicated to real-time atmospheric observations. Based on the WARE radar data collected for the period from September 2011 to February 2013, 2666 downward and 1735 upward inertia gravity waves (IGWs) are identified from three-dimensional (3-D) wind fields observed in the troposphere and subsequently analyzed in a statistical manner. Wave characteristics including intrinsic frequencies, vertical wavelengths, horizontal wavelengths, vertical wave number spectra, energy density spectra, and wave sources are investigated using a combination of the Lomb-Scargle spectral analysis, the quasi-monochromatic gravity waves model, and the hodograph method. Our results demonstrate that the characteristic parameters of upward and downward tropospheric IGWs are not significantly different. These results indicate that the tropospheric IGWs parameters are not directly correlated with propagation directions. Combining with the information of statistical 3-D wind field and some climatic characteristics of Hubei Province, atmospheric moist convection will contribute most in summer, whereas jet/front systems will contribute most in winter. One may expect seasonal variations to be tied to the varying importance of these sources.

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Wuhan Atmosphere Radio Exploration (WARE) radar: System design and online winds measurements

Cited by 16 publications

References 22 publications

Quasi 10‐ and 16‐Day Wave Activities Observed Through Meteor Radar and MST Radar During Stratospheric Final Warming in 2015 Spring

Quasi 10‐ and 16‐Day Wave Activities Observed Through Meteor Radar and MST Radar During Stratospheric Final Warming in 2015 Spring

WHU VHF radar observations of the diurnal tide and its variability in the lower atmosphere over Chongyang (114.14° E, 29.53° N), China

A statistical study of inertia gravity waves in the troposphere based on the measurements of Wuhan Atmosphere Radio Exploration (WARE) radar

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