Calibration of a crop model to irrigated water use using a genetic algorithm

K-REx Repository

Show simple item record Bulatewicz, Tom Jin, W. Staggenborg, Scott A. Lauwo, S. Miller, M. Das, Sanjoy Andresen, D. Peterson, Jeffrey M. Steward, David R. Welch, Stephen M. 2010-09-14T17:54:51Z 2010-09-14T17:54:51Z 2009-08-14
dc.description.abstract Near-term consumption of groundwater for irrigated agriculture in the High Plains Aquifer supports a dynamic bio-socio-economic system, all parts of which will be impacted by a future transition to sustainable usage that matches natural recharge rates. Plants are the foundation of this system and so generic plant models suitable for coupling to representations of other component processes (hydrologic, economic, etc.) are key elements of needed stakeholder decision support systems. This study explores utilization of the Environmental Policy Integrated Climate (EPIC) model to serve in this role. Calibration required many facilities of a fully deployed decision support system: geo-referenced databases of crop (corn, sorghum, alfalfa, and soybean), soil, weather, and water-use data (4931 well-years), interfacing heterogeneous software components, and massively parallel processing (3.8×109 model runs). Bootstrap probability distributions for ten model parameters were obtained for each crop by entropy maximization via the genetic algorithm. The relative errors in yield and water estimates based on the parameters are analyzed by crop, the level of aggregation (county- or well-level), and the degree of independence between the data set used for estimation and the data being predicted. en_US
dc.relation.uri en_US
dc.rights Attribution 3.0 Unported (CC BY 3.0) en_US
dc.subject Groundwater en_US
dc.subject Agriculture en_US
dc.subject High Plains Aquifer en_US
dc.subject Sustainability en_US
dc.subject Irrigation en_US
dc.title Calibration of a crop model to irrigated water use using a genetic algorithm en_US
dc.type Text en_US 2009 en_US
dc.citation.doi 10.5194/hess-13-1467-2009 en_US
dc.citation.epage 1483 en_US
dc.citation.jtitle Hydrology and Earth System Sciences en_US
dc.citation.spage 1467 en_US
dc.citation.volume 13 en_US
dc.contributor.authoreid tombz en_US
dc.contributor.authoreid jpeters en_US
dc.contributor.authoreid sstaggen en_US
dc.contributor.authoreid welchsm en_US
dc.contributor.authoreid steward en_US
dc.contributor.authoreid sdas en_US

Files in this item

This item appears in the following Collection(s)

Show simple item record

Attribution 3.0 Unported (CC BY 3.0) Except where otherwise noted, the use of this item is bound by the following: Attribution 3.0 Unported (CC BY 3.0)

Search K-REx

Advanced Search


My Account


Center for the

Advancement of Digital