A Mobile, Phased-Array Doppler Radar For The Study of Severe Convective Storms

Abstract

In a recent field experiment a truck-based, rapid scan, agile-beam Doppler radar probed severe convective storms and tornadoes on very short time scales, at relatively close range. , the advective time scale is only 10 s. Bluestein et al. (2003; their Figs. 10 and 11) showed how even when the reflectivity and Doppler wind field in a tornado at low levels is viewed every ~15 s, not all the evolution is captured.In a supercell having updrafts of ~50 m s −1 (e.g., Weisman and Klemp 1984, their Fig. 5; Bluestein et al. 1988, their Fig. 15), vortices, cloud particles, small hydrometeors, etc., can be advected upward ~5 km, almost half the depth of the parent storm in just ~100 s (a few min). Trapp et al. (1999) found after inspecting Weather Surveillance Radar-1988 Doppler (WSR-88D) volume scans that some tornadic vortex signatures descend, whereas others 

Modification of misovortices during landfall in the Japan Sea coastal region

“…Thus, we will not discuss further the temporal change in tangential velocity immediately before or during landfall. To investigate such changes during landfall, observational studies using radar with high temporal resolution such as phased array radar (e.g., Bluestein et al, 2010;Yoshikawa et al, 2013) and numerical modeling studies would be useful.…”

Application of Weather Early Warning System in Power Grid Production

“…China has also undergone a large area blackout times due to weather reasons, the larger sphere of influence: in 2008 in Hunan Province as the ice disaster, causing massive power failure, according to the statistics of the ice disaster caused a total of 3 million 670 thousand lines outage, the direct economic loss of 15 billion 450 million yuan in power grid. July [1][2][3][4][5]2009, a large range of heavy rainfall in Guangxi, resulting in Guangxi power grid 10kV above line trip 243, outage distribution (Taiwan, district) 3362 units.…”

MMSE Beam Forming on Fast-Scanning Phased Array Weather Radar

“…IP1 radar, Rapid-Scan DOW, Atmospheric Imaging Radar, RaxPol, MWR-05XP, and so on has been proposed and developed [4], [5], [6], [7], [8].…”

“…In [3], a multi-function phased array radar for not only detecting weather phenomena but controlling air traffic and tracking non-cooperative airplanes by using a rapid scan has been proposed. For the fast scanning purpose, CASA IP1 radar, Rapid-Scan DOW, Atmospheric Imaging Radar, RaxPol, MWR-05XP, and so on has been proposed and developed [4], [5], [6], [7], [8].…”