B03. ECS > 5 K; a tale of two models

Owned by Chris Golaz
Last updated: Nov 20, 2019 by Renata McCoy
1 min read


Poster Title

ECS > 5 K; a tale of two models

First AuthorChris Golaz
TopicE3SM evaluation
AffiliationE3SM Water Cycle
Link to document


Title

ECS > 5 K; a tale of two models

Authors

Chris Golaz, LLNL

Abstract

E3SMv1 and CESM2 are close cousins. Perhaps not surprisingly, both models share a high climate sensitivity (ECS > 5 K). Despite this similarity, these two models behave differently in idealized CO2 forcing simulations (abrupt-4xCO2, 1pctCO2) as well as historical simulations. In particular, we explore possible reasons why one model (CESM2) simulates the evolution of the global mean surface temperature over the historical record significantly more accurately than the other (E3SMv1).