EconWEAP

The paper introduces EconWEAP, a model that integrates the State Wide Economic Agricultural Production Model (SWAP) and the Water Evaluation and Planning (WEAP) system to better reflect physical and behavioral responses to climate change. By using a step function approximation of water demand curves from SWAP within an iterative search process, the model estimates crop land allocation based on economic value and water availability. Application of EconWEAP to California's Central Valley demonstrated a significant increase in agricultural revenues compared to using WEAP alone, achieved through the economically optimal allocation of water while maintaining the same hydrology.

• The EconWEAP model is created by methodologically integrating the State Wide Economic Agricultural Production Model (SWAP), which is an agricultural economic optimization model, and Water Evaluation and Planning (WEAP), a climate-driven hydrological model.
• In tests conducted in California's Central Valley, the EconWEAP model showed a significant increase in revenues compared to the WEAP model by utilizing the economically optimal allocation of water without altering the hydrology.

APA

Stockholm Environment Institute (2016). EconWEAP. https://www.sei.org/publications/econweap-ca/

Chicago

Stockholm Environment Institute. EconWEAP. 2016. https://www.sei.org/publications/econweap-ca/.

Wikipedia

{{cite report |author=Stockholm Environment Institute |title=EconWEAP |date=2 November 2016 |url=https://www.sei.org/publications/econweap-ca/ |access-date=17 August 2026 |via=Climate Insights Directory}}

BibTeX

@techreport{stockholmenvironmentinstitute2016econweap, author = {{Stockholm Environment Institute}}, title = {{EconWEAP}}, institution = {Stockholm Environment Institute}, year = {2016}, month = nov, url = {https://www.sei.org/publications/econweap-ca/}, urldate = {2026-08-17}, note = {Indexed by Climate Insights Directory} }