Figure 8: Same as Figure 7, but for Radial-interval mean intercomparisons for GPS RO observations and (a) colocated global analysis, and (b) colocated radiosonde water vapor pressure (hPa). Elevations from the surface to 10-km are only considered due the lack of appreciable water vapor in the middle- to upper-troposphere. Red shading indicates where radial-interval mean vapor pressure is less than the colocated profiles while the green shading indicates where the observation vapor pressure is greater than the colocated profiles.