AbstractThe Cochin University of Science and Technology (CUSAT), Cochin, India, hosts the world’s first 205-MHz stratosphere–troposphere (ST) wind profiler radar. This radar constitutes 619 three-element Yagi–Uda antennas with a power aperture product of 1.6 × 108 Wm2 and is capable of providing accurate three-dimensional wind profiles for an altitude range of 315 m–20 km. The system description and its first time validation and results from some of the radar’s potential applications are being presented. The radar wind profiles have been validated against collocated GPS–radiosonde measurements during the summer monsoon of 2016. The radar and radiosonde profiles show very good correlation with coefficients of 0.99 and 0.93 for zonal and meridional winds, respectively. The standard deviation of the radar measurements with respect to radiosonde measurements is found to be 1.85 m s−1 for zonal wind and 1.66 m s−1 for meridional wind. Moreover, the radar also detects echoes from the ionosphere. The ST radar at Cochin (10.04°N, 76.33°E; 40 m MSL) is an ideal observational facility, located in the tropics, for understanding the processes of the Indian summer monsoon at the region of its onset, which is expected to enhance science’s knowledge of monsoon dynamics.
Journal of Atmospheric and Oceanic Technology – American Meteorological Society
Published: Dec 18, 2017
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