(1) Vertical T ±1.5–3.5° C larger errors continuous global ~200 mb km (About 6,000 Temperature ±2° C is in clouds. (3-5km in possible, soundings/day) in 1990. soundings typical Estimates typically By 2000: (20,400 GOES shown are for ~500 km plus 15,000 Polar a single level; soundings per day). T values over (258,000 radiances/day) a layer are better (2) GPS/MET T, ±0.5–2°C? Depends on continuous global ~1km or ~500 per Need an independent (LIMS) Or, a few mb accuracy of less in day over measurement of T other other variable much the to get e or vice versa. smaller Might neglect moisture in stratosphere where e is very small.
(1) Vertical Temperature soundings T ±1.5–3.5° C ±2° C is typical larger errors in clouds. Estimates shown are for a single level; T values over a layer are better continuous global ~200 mb (3-5km in km possible, typically ~500 km (About 6,000 soundings/day) in 1990. By 2000: (20,400 GOES plus 15,000 Polar soundings per day). (258,000 radiances/day) (2) GPS/MET (LIMS) T, ±0.5–2°C? Or, a few mb Depends on accuracy of other variable continuous global ~1km or less in much smaller ~500 per day over the Need an independent measurement of T other to get e or vice versa. Might neglect moisture in stratosphere where e is very small.