|Met Office Hadley Centre observations datasets|
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|Figure 1: Global lower stratospheric and lower tropospheric temperature anomalies from satellites and radiosondes.||Figure 2: Tropical (20S-20N ) lower stratospheric and lower tropospheric temperature anomalies from satellites and radiosondes.|
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UAH (blue) and RSS (red) are two independently produced satellite estimates based on the same Microwave Sounding Units (MSU) temperature retrievals. HadAT (black) has been vertically weighted to create an MSU-equivalent time series and the surface (green) temperature anomalies are based on HadCRUT3. All data have been smoothed using a simple 7-point filter. The squares on the right hand panels denote the trends for the radiosonde and satellite eras, calculated using a median of pairwise slopes approach. The blue/pink areas on the tropospheric plot highlight tropospheric cooling/warming relative to the surface. Theoretical expectations are for greater warming in the troposphere than at the surface in the tropics.
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