Indian MST radar 1. System description and sample vector wind measurements in ST mode

An MST radar operating at 53 MHz with an average power aperture product of 7 × 108 W m2 has been established at Gadanki (13.5°N, 79.2°E), India. The radar development has been accomplished in two phases. In the first phase it was commissioned in ST mode using a partial system comprising one quarter (16 × 16)of the Yagi antenna array and 16 driver units of the transmitters providing an average power aperture product of 4.8 × 106 W m2. In this part we present the radar system description, including off-line data processing, and some sample high-resolution vector wind measurements made in ST mode operation.

[1]  M. Yamamoto,et al.  First observation of the upper stratospheric vertical wind velocities using the Jicamarca VHF radar , 1993 .

[2]  P. Balamuralidhar,et al.  Indian MST radar 2. First scientific results in ST mode , 1995 .

[3]  Wayne K. Hocking,et al.  Measurement of turbulent energy dissipation rates in the middle atmosphere by radar techniques: A review , 1985 .

[4]  P. Hildebrand,et al.  Objective Determination of the Noise Level in Doppler Spectra , 1974 .

[5]  T. Tsuda,et al.  MST Radar Observations of a Saturated Gravity Wave Spectrum , 1989 .

[6]  K. S. Gage,et al.  MST radar studies of wind and turbulence in the middle atmosphere , 1984 .

[7]  G. D. Nastrom,et al.  Sources of Gravity Wave Activity Seen in the Vertical Velocities Observed by the Flatland VHF Radar , 1990 .

[8]  K. S. Gage,et al.  Vertical profiles of refractivity turbulence structure constant: Comparison of observations by the Sunset Radar with a new theoretical model , 1978 .

[9]  W. Ecklund,et al.  Vertical wind variability observed by VHF radar in the lee of the Colorado Rockies , 1982 .

[10]  J. Röttger,et al.  UHF/VHF radar techniques for atmospheric research and wind profiler applications , 1990 .

[11]  J. Röttger.  Structure and dynamics of the stratosphere and mesosphere revealed by VHF radar investigations , 1980 .

[12]  Toru Sato,et al.  Fine Altitude Resolution Observations of Stratospheric Turbulent Layers by the Arecibo 430 MHz Radar , 1982 .

[13]  W. Gordon,et al.  A review of radar studies of the middle atmosphere , 1980 .

[14]  Tapas Chakravarty,et al.  CALIBRATION OF ST RADAR USING RADIO-SOURCE VIRGO-A , 1993 .

[15]  M. Yamamoto,et al.  First results obtained with a middle and upper atmosphere (MU) radar , 1986 .

[16]  S. Fukao,et al.  Winds Measured by a UHF Doppler Radar and Rawinsondes: Comparisons Made on Twenty-Six Days (August-September 1977) at Arecibo, Puerto Rico , 1982 .

[17]  K. S. Gage,et al.  The MST radar technique: Potential for middle atmospheric studies , 1980 .

[18]  B. B. Balsley,et al.  Tropical Winds Measured by the Arecibo Radar , 1979 .

[19]  W. Gordon,et al.  Mesospheric winds and waves over Jicamarca on May 23–24, 1974 , 1979 .

[20]  W. Gordon,et al.  One full-day radar measurement of lower stratospheric winds over Jicamarca , 1978 .

[21]  Ronald F. Woodman,et al.  Radar Observations of Winds and Turbulence in the Stratosphere and Mesosphere. , 1974 .

[22]  Martin Ryle,et al.  A new radio interferometer and its application to the observation of weak radio stars , 1952, Proceedings of the Royal Society of London. Series A. Mathematical and Physical Sciences.

[23]  Kenneth S. Gage,et al.  Radar Observations of the Free Atmosphere: Structure and Dynamics , 1990 .