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Variations and Trends in Tropospheric and Stratospheric Global Temperatures, 1958–87

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Analysis reveals trends in global temperatures across climatic zones, highlighting significant changes in the stratosphere.

The aim is to examine variations and trends in tropospheric and stratospheric temperatures from 1958 to 1987.
Analyzed data from 63 radiosonde stations across climatic zones from 1958–87 and 1973–87.
Calculated year-average global temperatures at various atmospheric levels (surface, troposphere, low-stratosphere).
Evaluated temperature changes across hemispheres and climatic zones.
Global temperatures increased by 0.08°C (10 yr)−1 at the surface and 0.09°C (10 yr)−1 in the troposphere from 1958-87 (p<0.05).
Global temperature decreased by 0.18°C (10 yr)−1 in the 300–100 mb stratosphere during the same interval (p<0.01).
Significant decrease of 0.62°C (10 yr)−1 in low-stratospheric temperatures from 1973-87, with a notable decline in the south polar zone of 2.04°C (10 yr)−1.

J. K. Angell (1988) studied this question.

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