GOES Imager IR Weighting Functions


WV channel senses a deep layer of the atmosphere. In this instance, the "half-power" points are about 350 mb and 650 mb, and the peak is about 450 mb.

WF Discussion

WV channel is NOT a window channel--it doesn't sense the surface, only the atmosphere itself or high/deep clouds.



Weighting function peak moves up in moister atmospheres and down in dryer atmosperes, but it still doesn't see the surface, except possibly for mountains..


Comparison with Sounder WV channels


Sounder weighting functions