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The effect of diurnal correction on satellite-derived lower tropospheric temperature.

Authors
  • Mears, Carl A
  • Wentz, Frank J
Type
Published Article
Journal
Science
Publisher
American Association for the Advancement of Science (AAAS)
Publication Date
Sep 02, 2005
Volume
309
Issue
5740
Pages
1548–1551
Identifiers
PMID: 16141071
Source
Medline
License
Unknown

Abstract

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.

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