Open AccessGISS‐E2.1: Configurations and Climatology
Author(s) -
Kelley Maxwell,
Schmidt Gavin A.,
Nazarenko Larissa S.,
Bauer Susanne E.,
Ruedy Reto,
Russell Gary L.,
Ackerman Andrew S.,
Aleinov Igor,
Bauer Michael,
Bleck Rainer,
Canuto Vittorio,
Cesana Grégory,
Cheng Ye,
Clune Thomas L.,
Cook Ben I.,
Cruz Carlos A.,
Del Genio Anthony D.,
Elsaesser Gregory S.,
Faluvegi Greg,
Kiang Nancy Y.,
Kim Daehyun,
Lacis Andrew A.,
Leboissetier Anthony,
LeGrande Allegra N.,
Lo Ken K.,
Marshall John,
Matthews Elaine E.,
McDermid Sonali,
Mezuman Keren,
Miller Ron L.,
Murray Lee T.,
Oinas Valdar,
Orbe Clara,
GarcíaPando Carlos Pérez,
Perlwitz Jan P.,
Puma Michael J.,
Rind David,
Romanou Anastasia,
Shindell Drew T.,
Sun Shan,
Tausnev Nick,
Tsigaridis Kostas,
Tselioudis George,
Weng Ensheng,
Wu Jingbo,
Yao MaoSung
Publication year - 2020
Publication title -
journal of advances in modeling earth systems
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 3.03
H-Index - 58
ISSN - 1942-2466
DOI - 10.1029/2019ms002025
Subject(s) - climatology , coupled model intercomparison project , forcing (mathematics) , climate sensitivity , radiative forcing , environmental science , climate model , sea ice , meteorology , atmospheric sciences , climate change , geology , geography , oceanography , aerosol
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 × CO 2 is slightly higher than previously at 2.7–3.1°C (depending on version) and is a result of lower CO 2 radiative forcing and stronger positive feedbacks.