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Temperature Above the Surface
Temperatures in the atmosphere above the surface,
Figure 5, as measured by balloon-borne instruments and satellites have been analyzed
for trends over the period of record which, for these observations, is only about 50 years long.
The middle troposphere from about 1,500 m to 7,000 m (850 mb - 300 mb) shows a general warming
since about 1965 of about 0.4°C. The upper troposphere (300mb - 100 mb) shows a cooling
trend in general disagreement with most global climate models. The lower stratosphere generally
shows a substantial cooling, which is in agreement with most model results and is due to
reduced ozone absorption of UV radiation and increased warming at the surface which deepens
convection.
NEXT: Ocean Water Temperatures
