sentences:  The vertical resolution of RASS data is determined by the pulse length(s) used by the radar.RASS sampling is usually performed with a 60 to 100 meter pulse length.Because of atmospheric attenuation of the acoustic signals at the RASS frequencies used by boundary layer radar wind profilers, the altitude range that can be sampled is usually 0.1 to 1.5 km, depending on atmospheric conditions (e.g., high wind velocities tend to limit RASS altitude coverage to a few hundred meters because the acoustic signals are blown out of the radar beam).