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Updated: Jul 8, 2026

Measurement of Aerosols Optical Thickness of the Atmosphere using the GLOBE Handheld Sun Photometer
Published on: May 29, 2019
Atmospheric science: tropospheric temperature series from satellites
1Met Office, Hadley Centre (Reading Unit), Meteorology Building, University of Reading, Reading, RG6 6BB, UK. simon.tett@metoffice.gov.uk
Abstract:
There has been considerable debate about changes in the temperature of the troposphere measured using the Microwave Sounding Unit (MSU) instrument or radiosondes. Fu et al. linearly combine time series from two MSU channels to estimate vertically integrated 850-300-hPa temperatures and claim consistency between surface and free-troposphere warming for one MSU record. We believe that their approach overfits the data, produces trends that overestimate warming and gives overly optimistic uncertainty estimates. There still remain large differences between observed tropospheric temperature trends and those simulated by a climate model.
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