Work Description

Title: Data in support of the study "Climate response to negative greenhouse gas radiative forcing in polar winter" Open Access Deposited
Attribute Value
  • The data are model output from climate simulations conducted with the Community Earth System Model (CESM) version 1.0.6
  • Greenhouse gas (GHG) additions to Earth’s atmosphere initially reduce global outgoing longwave radiation (OLR), thereby warming the planet. In select environments with temperature inversions, however, increased GHG concentrations can actually increase local OLR. Negative top-of-atmosphere and effective radiative forcing (ERF) from this situation give the impression that local surface temperatures could cool in response to GHG increases. Here we consider an extreme scenario in which GHG concentrations are increased only within the warmest layers of winter near-surface inversions of the Arctic and Antarctic. We find, using a fully coupled Earth system model, that the underlying surface warms despite the GHG addition exerting negative ERF and cooling the troposphere in the vicinity of the GHG increase. This unique radiative forcing and thermal response is facilitated by the high stability of the polar winter atmosphere, which inhibits thermal mixing and amplifies the impact of surface radiative forcing on surface temperature. These findings also suggest that strategies to exploit negative ERF via injections of short-lived GHGs into inversion layers would likely be unsuccessful in cooling the planetary surface.

  • Note: A revised data description file was added to this work on April 11, 2018 containing additional information about the data set than was provided in the original description. Additional keywords and a full citation to the related article were added as well.
Contact information
Funding agency
  • National Science Foundation (NSF)
ORSP grant number
  • F033563
Citations to related material
  • Flanner, M. G., Huang, X., Chen, X.,& Krinner, G. (2018). Climate response to negative greenhouse gas radiative forcing in polar winter. Geophysical Research Letters, 45, 1997–2004.
Resource type
Last modified
  • 08/21/2019
  • 03/23/2018
To Cite this Work:
Flanner, M. (2018). Data in support of the study "Climate response to negative greenhouse gas radiative forcing in polar winter" [Data set]. University of Michigan - Deep Blue.


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