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MAR optimization

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Created: Jul 26, 2021 at 12:12 p.m.
Last updated: May 11, 2023 at 5:23 a.m.
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This repository contains information about the simulation model and the optimization algorithm that were used in the WRR paper 10.1029/2022WR034129.

Subject Keywords



Coordinate System/Geographic Projection:
WGS 84 EPSG:4326
Coordinate Units:
Decimal degrees
Place/Area Name:
Central Valley
North Latitude
East Longitude
South Latitude
West Longitude


The research paper that is related with the current repository combines an Integrated Water Flow Model and a multi-objective optimization algorithm.

Simulation Model

The simulation model is the California Central Valley Groundwater-Surface Water Simulation Model known as C2VSim. The model can be downloaded from the California Department of Water Resources website as

In the WRR paper we use the version R374_rev (Released: April 27, 2018). The website contains all require input files, executables and detail instructions on how to run the simulation model

Optimization Algorithm

For this paper we developed a parallel version of the well known NSGAII algorithm. The optimization code can be accessed via our repository

Detailed instruction on how to build and run the code can be found at the repository.


Input Data

The folder InputFiles contains the input files that were used in the optimizations.


The folder Results contains the raw results of the optimization runs as well as the files for an interactive visualization application.

To launch the application open the OptimResults.html in a web browser. Make sure that all *.js files live under the same folder as the html file.

The Results folder contains three subfolders:

  1. Scen1: corresponds to the results of the Local scenario
  2. Scen2: corresponds to the results of the FKC scenario
  3. Scen3: corresponds to the results of the Delta scenario

Each of the three folders contains 4 subfolders with names that follow the naming convention pXX_YYY where XXcorresponds to the percentile [90, 95] and YYY to the CAP amount [100 200]

These subfolders contain files with the following prefixes:

  • pS_ : The output file that describe the final Pareto solutions
  • pH_ : The output file that describe the evolution of the optimization algorithm
  • pR_ : Utility files that are used for continuing the optimization if needed.


Funding Agencies

This resource was created using funding from the following sources:
Agency Name Award Title Award Number
National Science Foundation 1716130
USDA Economic Research Service 58-6000-7-0090
USDA NIFA 2021-69012-35916

How to Cite

Kourakos, G., G. Brunetti, D. Bigelow, S. Wallander, H. Dahlke (2023). MAR optimization, HydroShare,

This resource is shared under the Creative Commons Attribution CC BY.


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