Tropospheric Temperature (the Satellite and Balloon Temperature Records)
Satellites have been measuring the temperature of the troposphere since December 1978. Balloon measurements begin to show an approximation of global coverage in the 1950s.
Several groups have analyzed the satellite data to calculate temperature trends in the troposphere. Both the University of Alabama in Huntsville (UAH) and the private, NASA funded, corporation Remote Sensing Systems RSS (RSS) find an upward trend.
For the lower troposphere (TLT), UAH find a global average trend since 1978 of +0.140 °C/decade, to January 2011. RSS finds +0.148°C/decade, to January 2011.
In 2004 Fu et al. found trends of +0.19 °C/decade when applied to the RSS dataset. Vinnikov and Grody found +0.20°C/decade up between 1978 and 2005, since which the dataset has not been updated.
Read more about this topic: Temperature Record
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