Effects of orbital decay on satellite-derived lower-tropospheric temperature trends

  title={Effects of orbital decay on satellite-derived lower-tropospheric temperature trends},
  author={Frank Wentz and Matthias C. Schabel},
The 17-year lower-tropospheric temperature record derived from the satellite Microwave Sounding Unit (MSU) shows a global cooling trend, from 1979 to 1995, of −0.05 K per decade at an altitude of about 3.5 km (refs 4, 5). Air temperatures measured at the Earth's surface, in contrast, have risen by approximately +0.13 K per decade over the same period,. The two temperature records are derived from measurements of different physical parameters, and thus are not directly comparable. In fact, the… 

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