Surface temperatures and thickness-derived temperatures from a 63-station, globally distributed radiosonde network have been used to estimate global, hemispheric, and zonal annual and seasonal temperature anomalies. The data were obtained from differences in height between constant-pressure surfaces at individual radiosonde stations. The pressure-height data before ... 1980 were obtained from published data in the "Monthly Climatic Data for the World". Since 1980, data was obtained from the "Climatic Data for the World" and the Global Telecommunication System Network received at the National Meteorological Center. All of the data are referenced to a 1958-1977 average.
The data consists of the following:
Global (90S-90N) North Polar (60N-90N) North Temperate (30N-60N) North Subtropics (10N-30N) Equatorial (10S-10N) South Subtropics (10S-30S) South Temperate (30S-60S) South Polar (60S-90S) Tropical (30S-30N) Northern Hemisphere (0-90N) Southern Hemisphere (0-90S)
For each zone the data is expressed in degrees Celsius for winter (December-February), spring (March-May), Summer (June-August), and Fall (September-November) at 3 pressure levels (Surface - 100 mb, 100-50 mb, and 100-30 mb) for each year 1958-2002.
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Angell, J.K. 1999. Comparison of surface and tropospheric temperature trends estimated from a 63-station radiosonde network, 1958-1998. Geophys. Res. Lett. 26:2761-2764.
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Angell, J.K. 2000b. Difference in radiosonde temperature trend for the period 1979-1998 of MSU data and the period 1959-1998 twice as long. Geophysical Research Letters 27:2177-2180.
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