Table 2: Comparison of simultaneous soundings by AWI and UT. UT600 refers to the inversion statistics based solely on the lowermost 600 m of the UT data. N denotes the number of simultaneous observations for each variable. See Section 3 for definition of variables.

Variable/N AWI UT UT600 TID/5 193 m 106 m 109 m TIS/5 3.9°C 4.5°C 4.1°C /5 −20.0°C −19.5°C 19.5°C /5 −16.1°C −14.9°C −15.4°C QID/8 203 m 124 m 59 m QIS/8 0.07 g kg−1 0.18 g kg−1 0.11 g kg−1 /8 0.61 g kg−1 0.52 g kg−1 0.52 g kg−1 /8 0.68 g kg−1 0.70 g kg−1 0.62 g kg−1 /3 208 m 213 m 213 m – /3 2.9 m s−1 3.9 m s−1 3.7 m s−1 /3 5.2 m s−1 6.2 m s−1 6.2 m s−1