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Title: The integrated Earth System Model Version 1: formulation and functionality

Journal Article · · Biogeosciences, 8:2203-2219

The integrated Earth System Model (iESM) has been developed as a new tool for pro- jecting the joint human/climate system. The iESM is based upon coupling an Integrated Assessment Model (IAM) and an Earth System Model (ESM) into a common modeling in- frastructure. IAMs are the primary tool for describing the human–Earth system, including the sources of global greenhouse gases (GHGs) and short-lived species, land use and land cover change, and other resource-related drivers of anthropogenic climate change. ESMs are the primary scientific tools for examining the physical, chemical, and biogeochemical impacts of human-induced changes to the climate system. The iESM project integrates the economic and human dimension modeling of an IAM and a fully coupled ESM within a sin- gle simulation system while maintaining the separability of each model if needed. Both IAM and ESM codes are developed and used by large communities and have been extensively applied in recent national and international climate assessments. By introducing heretofore- omitted feedbacks between natural and societal drivers, we can improve scientific under- standing of the human–Earth system dynamics. Potential applications include studies of the interactions and feedbacks leading to the timing, scale, and geographic distribution of emissions trajectories and other human influences, corresponding climate effects, and the subsequent impacts of a changing climate on human and natural systems. This paper de- scribes the formulation, requirements, implementation, testing, and resulting functionality of the first version of the iESM released to the global climate community.

Research Organization:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States). Oak Ridge Leadership Computing Facility (OLCF); Pacific Northwest National Laboratory (PNNL), Richland, WA (United States)
Sponsoring Organization:
USDOE Office of Science (SC)
DOE Contract Number:
AC05-76RL01830
OSTI ID:
1209859
Report Number(s):
PNNL-SA-110647; KP1703020
Journal Information:
Biogeosciences, 8:2203-2219, Journal Name: Biogeosciences, 8:2203-2219
Country of Publication:
United States
Language:
English

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Cited By (13)

Temporal and Spatial Matching in Human-Earth System Model Coupling journal June 2018
Coupling population dynamics with earth system models: the POPEM model journal September 2017
Biospheric feedback effects in a synchronously coupled model of human and Earth systems journal June 2017
Toward a consistent modeling framework to assess multi-sectoral climate impacts journal February 2018
Integrated human-earth system modeling—state of the science and future directions journal June 2018
Adaptation of global land use and management intensity to changes in climate and atmospheric carbon dioxide journal March 2018
Climate, ecosystems, and planetary futures: The challenge to predict life in Earth system models journal February 2018
Integrated Solutions for the Water-Energy-Land Nexus: Are Global Models Rising to the Challenge? journal October 2019
Current challenges of implementing anthropogenic land-use and land-cover change in models contributing to climate change assessments journal January 2017
Modelling feedbacks between human and natural processes in the land system journal January 2018
Current challenges of implementing anthropogenic land-use and land-cover change in models contributing to climate change assessments text January 2017
Adaptation of global land use and management intensity to changes in climate and atmospheric carbon dioxide text January 2018
Models meet data: Challenges and opportunities in implementing land management in Earth system models journal December 2017

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