The wind of radar flowmeter affects the water surface velocity.

What you want to ask is whether the wind of radar flowmeter affects the water surface velocity? Influence. Radar flowmeter measures the surface velocity of water, which can be measured normally under windless conditions. However, in the case of wind, the wind will affect the surface velocity of water, so the measured velocity is inconsistent with the actual situation. The Doppler ultrasonic flowmeter is installed in water, and the wind above the water surface has little influence on the measurement, so the real flow of water can be measured.