Preprints
https://doi.org/10.5194/gmd-2021-197
https://doi.org/10.5194/gmd-2021-197

Submitted as: model description paper 06 Jul 2021

Submitted as: model description paper | 06 Jul 2021

Review status: this preprint is currently under review for the journal GMD.

GCAM-USA v5.3_water_dispatch: Integrated modeling of subnational U.S. energy, water, and land systems within a global framework

Matthew Binsted, Gokul Iyer, Pralit Patel, Neal Graham, Yang Ou, Zarrar Khan, Nazar Kholod, Kanishka Narayan, Mohamad Hejazi, Son Kim, Katherine Calvin, and Marshall Wise Matthew Binsted et al.
  • Joint Global Change Research Institute (Pacific Northwest National Laboratory and University of Maryland), 5825 University Research Court, Suite 3500, College Park, MD 20740, USA

Abstract. This paper describes GCAM-USA v5.3_water_dispatch, an open source model that represents key interactions across economic, energy, water, and land systems in a consistent global framework, with subnational detail in the United States. GCAM-USA divides the world into 31 geopolitical regions outside the United States (U.S.) and represents the U.S. economic and energy systems in 51 state-level regions (50 states plus the District of Columbia). The model also includes 235 water basins and 384 land-use regions; 23 of each fall at least partially within the United States. GCAM-USA offers a level of process and temporal resolution rare for models of its class and scope, including detailed subnational representation of U.S. water demands and supplies and sub-annual operations (day/night for each month) in the U.S. electric power sector. GCAM-USA can be used to explore how changes in socioeconomic drivers, technological progress, or policy impact demands for, and production of, energy, water, and crops at a subnational level in the United States, while maintaining consistency with broader national and international conditions. This paper describes GCAM-USA’s structure, inputs, and outputs, with emphasis on new model features. Four illustrative scenarios encompassing varying socioeconomic and energy system futures are used to explore subnational changes in energy, water, and land-use outcomes. We conclude with information about how public users can access the model.

Matthew Binsted et al.

Status: open (until 31 Aug 2021)

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse

Matthew Binsted et al.

Model code and software

GCAM-USA v5.3_water_dispatch Matthew Binsted; Gokul Iyer; Pralit Patel; Neal Graham; Yang Ou; Zarrar Khan; Nazar Kholod; Kanishka Narayan; Mohamad Hejazi; Son Kim; Katherine Calvin; Marshall Wise https://zenodo.org/record/4898374

Matthew Binsted et al.

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Short summary
GCAM-USA v5.3_water_dispatch is an open source model that represents key interactions across economic, energy, water, and land systems in a global framework, with subnational detail in the United States. GCAM-USA can be used to explore future changes demands for, and production of, energy, water, and crops at the state and regional level in the U.S. This paper describes GCAM-USA and provides four illustrative scenarios to demonstrate the model’s capabilities and potential applications.