loading page

An Analytical Model for the Meridional Gradient in CO2 Forcing
  • +1
  • Nadir Jeevanjee,
  • Jacob Seeley,
  • David Paynter,
  • Stephan Fueglistaler
Nadir Jeevanjee
Princeton University

Corresponding Author:nadirj@princeton.edu

Author Profile
Jacob Seeley
University of California Berkeley
Author Profile
David Paynter
NOAA GFD Lab-Princeton University
Author Profile
Stephan Fueglistaler
Princeton University
Author Profile


Meridional gradients in CO2 forcing are known to drive increases in poleward heat transport (Huang and Zhang 2014, Huang et al. 2017). However, the climate factors which control these meridional forcing gradients are not well understood. Building upon the work of Wilson (2012), we build a first-principles, analytical model for CO2 forcing which requires as input only the temperatures at the surface and roughly 30 hPa, as well as column relative humidity. This model quantitatively captures global variations in clear-sky CO2 forcing, and shows that the meridional forcing gradient is directly attributable to the meridional surface temperature gradient.