wind usually increases the Doppler effect, depending on the direction of it you either add it with the source speed or add it with the detector speed. It is definitely not negligible.
When the source of light is moving towards you, the light shifts towards the blue end of the spectrum due to the compressing of the light waves. This is called a blueshift. A redshift is when the...
It is the effect that happens when waves like sound are moving in relation to another object. In the classic train whistle example, The whistle suddenly drops in pitch as it passes you and starts to...
Redshift is the elongation of wavelengths of light due to the receding of observed objects. This IS the Doppler effect as related to light, just as the lowering of pitch of receding sound generators...