TITLE

Refereed Papers: Uncertainty in the Global Average Surface Air Temperature Index: A Representative Lower Limit

AUTHOR(S)
Frank, Patrick
PUB. DATE
December 2010
SOURCE
Energy & Environment;2010, Vol. 21 Issue 8, p969
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Sensor measurement uncertainty has never been fully considered in prior appraisals of global average surface air temperature. The estimated average ±0.2 C station error has been incorrectly assessed as random, and the systematic error from uncontrolled variables has been invariably neglected. The systematic errors in measurements from three ideally sited and maintained temperature sensors are calculated herein. Combined with the ±0.2 C average station error, a representative lower-limit uncertainty of ±0.46 C was found for any global annual surface air temperature anomaly. This ±0.46 C reveals that the global surface air temperature anomaly trend from 1880 through 2000 is statistically indistinguishable from 0 C, and represents a lower limit of calibration uncertainty for climate models and for any prospective physically justifiable proxy reconstruction of paleo-temperature. The rate and magnitude of 20th century warming are thus unknowable, and suggestions of an unprecedented trend in 20th century global air temperature are unsustainable.
ACCESSION #
57319533

 

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