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Originally published in Science Express on 11 August 2005
Science 2 September 2005:
Vol. 309. no. 5740, pp. 1548 - 1551
DOI: 10.1126/science.1114772
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Reports

The Effect of Diurnal Correction on Satellite-Derived Lower Tropospheric Temperature

Carl A. Mears and Frank J. Wentz

Satellite-based measurements of decadal-scale temperature change in the lower troposphere have indicated cooling relative to Earth's surface in the tropics. Such measurements need a diurnal correction to prevent drifts in the satellites' measurement time from causing spurious trends. We have derived a diurnal correction that, in the tropics, is of the opposite sign from that previously applied. When we use this correction in the calculation of lower tropospheric temperature from satellite microwave measurements, we find tropical warming consistent with that found at the surface and in our satellite-derived version of middle/upper tropospheric temperature.

Remote Sensing Systems, 438 First Street, Suite 200, Santa Rosa, CA 94501, USA.

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Amplification of Surface Temperature Trends and Variability in the Tropical Atmosphere.
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