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Title: Taking climate model evaluation to the next level

Journal Article · · Nature Climate Change
ORCiD logo [1]; ORCiD logo [2];  [3];  [4]; ORCiD logo [5];  [4]; ORCiD logo [6];  [1];  [7]; ORCiD logo [8];  [9]; ORCiD logo [10]; ORCiD logo [11]; ORCiD logo [4];  [12]; ORCiD logo [13]; ORCiD logo [14]; ORCiD logo [10];  [15]; ORCiD logo [15] more »; ORCiD logo [10];  [16]; ORCiD logo [17]; ORCiD logo [15];  [4]; ORCiD logo [5];  [15]; ORCiD logo [17];  [2] « less
  1. Deutsches Zentrum für Luft- und Raumfahrt e.V. (DLR), Oberpfaffenhofen (Germany); University of Bremen (Germany)
  2. University of Exeter (United Kingdom)
  3. Canadian Centre for Climate Modelling and Analysis, Victoria, British Columbia (Canada)
  4. Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
  5. University of New South Wales, Sydney (Australia)
  6. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States); Univ. of California, Berkeley, CA (United States)
  7. Univ. of California, Los Angeles, CA (United States)
  8. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Univ. of Tennessee, Knoxville, TN (United States)
  9. Univ. of Maryland, College Park, MD (United States)
  10. Univ. of Colorado, Boulder, CO (United States)
  11. Met Office Hadley Centre, Exeter (United Kingdom)
  12. Geophysical Fluid Dynamics Laboratory, NOAA, Princeton, NJ (United States)
  13. Laboratoire de Météorologie Dynamique (LMD), IPSL, Paris (France)
  14. Institute for Atmospheric and Climate Science, ETH Zurich (Switzerland)
  15. National Center for Atmospheric Research (NCAR), Boulder, CO (United States)
  16. NASA Goddard Institute for Space Studies, New York, NY (United States)
  17. Univ. of Arizona, Tucson, AZ (United States)

We report that earth system models are complex and represent a large number of processes, resulting in a persistent spread across climate projections for a given future scenario. Owing to different model performances against observations and the lack of independence among models, there is now evidence that giving equal weight to each available model projection is suboptimal. This Perspective discusses newly developed tools that facilitate a more rapid and comprehensive evaluation of model simulations with observations, process-based emergent constraints that are a promising way to focus evaluation on the observations most relevant to climate projections, and advanced methods for model weighting. Lastly, these approaches are needed to distill the most credible information on regional climate changes, impacts, and risks for stakeholders and policy-makers.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States); Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Biological and Environmental Research (BER); USDOE National Nuclear Security Administration (NNSA); Horizon 2020
Grant/Contract Number:
AC05-00OR22725; FC02-97ER62402; AC52-07NA27344; 641816; AC02-05CH11231
OSTI ID:
1495951
Alternate ID(s):
OSTI ID: 1571963; OSTI ID: 1647446
Report Number(s):
LLNL-JRNL-774290
Journal Information:
Nature Climate Change, Vol. 9, Issue 2; ISSN 1758-678X
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 354 works
Citation information provided by
Web of Science

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Reducing Uncertainties in Climate Projections with Emergent Constraints: Concepts, Examples and Prospects journal December 2019
Using indices of atmospheric circulation to refine southern Australian winter rainfall climate projections journal June 2019
Influence of Sea Surface Temperature on Simulated Future Change in Extreme Rainfall in the Asia-Pacific journal July 2019
Emergent Constraints on Climate-Carbon Cycle Feedbacks journal September 2019
Climate Models as Guidance for the Design of Observing Systems: the Case of Polar Climate and Sea Ice Prediction journal November 2019
Global Climate Model Ensemble Approaches for Future Projections of Atmospheric Rivers journal October 2019
An Observational Constraint on CMIP5 Projections of the East African Long Rains and Southern Indian Ocean Warming journal June 2019
Evaluating the Performance of Past Climate Model Projections journal January 2020
Philosophical Perspectives on Earth System Modeling: Truth, Adequacy, and Understanding journal January 2020
Inferring causation from time series in Earth system sciences journal June 2019
An emergent constraint on future Arctic sea-ice albedo feedback journal November 2019
The potential to reduce uncertainty in regional runoff projections from climate models journal November 2019
Emergent constraint on Arctic Ocean acidification in the twenty-first century journal June 2020
Precipitation regime change in Western North America: The role of Atmospheric Rivers journal July 2019
Quantifying stochastic uncertainty in detection time of human-caused climate signals journal September 2019
Quantifying uncertainty in European climate projections using combined performance-independence weighting journal November 2019
Latitudinal heterogeneity and hotspots of uncertainty in projected extreme precipitation journal December 2019
Global vegetation biomass production efficiency constrained by models and observations journal September 2019
ESD Reviews: Climate feedbacks in the Earth system and prospects for their evaluation journal January 2019
Investigating the applicability of emergent constraints journal January 2019
A causal flow approach for the evaluation of global climate models journal January 2020
Philosophical Perspectives on Earth System Modeling: Truth, Adequacy, and Understanding text January 2020
Quantifying uncertainty in European climate projections using combined performance-independence weighting text January 2019
Inferring causation from time series in Earth system sciences text January 2019
Inferring causation from time series in Earth system sciences text January 2019
ESD Reviews: Climate feedbacks in the Earth system and prospects for their evaluation text January 2019
Emergent constraint on Arctic Ocean acidification in the twenty-first century text January 2020
Climate Models as Guidance for the Design of Observing Systems - The case of Polar Climate and Sea Ice Prediction text January 2020
Causal networks for climate model evaluation and constrained projections journal March 2020
Emergent constraint on Arctic Ocean acidification in the twenty-first century journal June 2020
Precipitation regime change in Western North America: The role of Atmospheric Rivers journal July 2019
The response of global terrestrial photosynthesis to rising CO2 text January 2020
Earth System Model Evaluation Tool (ESMValTool) v2.0 – an extended set of large-scale diagnostics for quasi-operational and comprehensive evaluation of Earth system models in CMIP text January 2020
Post-Processing of High-Dimensional Data preprint January 2019
Will Artificial Intelligence supersede Earth System and Climate Models? text January 2021
Inferring causation from time series in Earth system sciences text January 2019