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Equilibrium Climate Sensitivity (ECS)

Calculate Equilibrium Climate Sensitivity (ECS) using linear regression following Gregory et al. (2004).

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Ecs

Calculate ECS.

Ecs: Calculate

Global annual mean top of the atmosphere (TOA) net radiation flux anomaly N vs. global annual mean near-surface air temperature anomaly ΔT for 25 years (blue circles) of the abrupt 4x CO2 experiment for model ACCESS-ESM1-5 (ensemble member r1i1p1f1). Anomalies are calculated relative to a pre-industrial control simulation of the same model. The solid black line corresponds to an ordinary linear regression between N and ΔT. On the top left, R2 corresponds to the coefficient of determination of the linear regression. The equilibrium climate sensitivity (ECS) is estimated as the x-intercept of the linear regression (interception of the solid and dashed black lines) divided by 2.
Global annual mean top of the atmosphere (TOA) net radiation flux anomaly N vs. global annual mean near-surface air temperature anomaly ΔT for 25 years (blue circles) of the abrupt 4x CO2 experiment for model ACCESS-ESM1-5 (ensemble member r1i1p1f1). Anomalies are calculated relative to a pre-industrial control simulation of the same model. The solid black line corresponds to an ordinary linear regression between N and ΔT. On the top left, R2 corresponds to the coefficient of determination of the linear regression. The equilibrium climate sensitivity (ECS) is estimated as the x-intercept of the linear regression (interception of the solid and dashed black lines) divided by 2.

download | references | extra data citation | provenance

Data files

  • Equilibrium Climate Sensitivity (Gregory method) for multiple climate models. | download | references | extra data citation | provenance
  • Global annual mean top of the atmosphere (TOA) net radiation flux anomaly N vs. global annual mean near-surface air temperature anomaly ΔT for 25 years (blue circles) of the abrupt 4x CO2 experiment for model ACCESS-ESM1-5 (ensemble member r1i1p1f1). Anomalies are calculated relative to a pre-industrial control simulation of the same model. The solid black line corresponds to an ordinary linear regression between N and ΔT. On the top left, R2 corresponds to the coefficient of determination of the linear regression. The equilibrium climate sensitivity (ECS) is estimated as the x-intercept of the linear regression (interception of the solid and dashed black lines) divided by 2. | download | references | extra data citation | provenance
  • Climate Feedback Parameter for multiple climate models. | download | references | extra data citation | provenance

Files

main_log.txt | main_log_debug.txt | recipe.yml | figures | data