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Giss-e2.1: Configurations and Climatology

Abstract

This paper describes the GISS-E2.1 contribution to the Coupled Model Intercomparison Project, Phase 6 (CMIP6). This model version differs from the predecessor model (GISS-E2) chiefly due to parameterization improvements to the atmospheric and ocean model components, while keeping atmospheric resolution the same. Model skill when compared to modern era climatologies is significantly higher than in previous versions. Additionally, updates in forcings have a material impact on the results. In particular, there have been specific improvements in representations of modes of variability (such as the Madden?Julian Oscillation and other modes in the Pacific) and significant improvements in the simulation of the climate of the Southern Oceans, including sea ice. The effective climate sensitivity to 2 × CO2 is slightly higher than previously at 2.7–3.1°C (depending on version) and is a result of lower CO2 radiative forcing and stronger positive feedbacks.

Article / Publication Data
Active/Online
YES
Volume
12
Available Metadata
Accepted On
July 10, 2020
DOI ↗
Fiscal Year
NOAA IR URL ↗
Peer Reviewed
YES
Publication Name
Journal of Advances In Modeling Earth Systems
Published On
July 10, 2020
Publisher Name
American Geophysical Union
Print Volume
12
Print Number
8
Page Range
e2019MS002025
Issue
8
Submitted On
December 27, 2019
Project Type
LAB SUPPORTED
URL ↗

Authors

Authors who have authored or contributed to this publication.