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Politics : Formerly About Advanced Micro Devices
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To: Brumar89 who wrote (915140)1/17/2016 5:16:00 PM
From: Wharf Rat  Read Replies (1) of 1576160
 
Hotspot Found Again: Warming of the Tropical Troposphere Confirms Climate Model Prediction
Posted on 20 May 2015 by Rob Painting

Key Points:
  • As the Earth warms, the lower atmosphere (troposphere) in the tropics is expected to warm at a faster rate than at the surface. The development of this so-called 'hotspot' is an expectation based on principles of atmospheric physics and is therefore also predicted by climate model simulations.
  • This hotspot in the tropical troposphere is not specific to the increased greenhouse effect resulting from industrial carbon dioxide emissions. It would, for example, also be expected in a hypothetical scenario where warming was due to increased solar output.
  • Despite obvious warming of the atmosphere, it had been difficult to confirm the existence of this hotspot primarily due to analytical deficiencies in accounting for temperature data quality and sampling, i.e. it's suspected to have been a 'measurement problem'.
  • Sherwood & Nishant (2015) is the latest scientific paper published in recent years to resolve this issue. By employing an improved analysis method to remove inherent biases in the data, these researchers have once again confirmed the existence of the tropical tropospheric hotspot.


skepticalscience.com
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