Template for Conceptual Model Construction: Model Components and Application of the Template

Use of models (conceptual, ecosystem, and decision support models) in systemwide studies is expanding due to requirements for integration of model outputs and due to the emphasis on watershed and regional approaches to water resource problems. Conceptual models assist in integrating the multiple dis...

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Bibliographic Details
Main Authors: Henderson, Jim E, O'Neil, L J
Format: Report
Language:English
Subjects:
Computer Programming and Software
CONCEPTUAL MODELS
DECISION AIDS
ECOSYSTEMS
EEC(ESSENTIAL ECOSYSTEM CHARACTERISTICS)
Hydrology, Limnology and Potamology
LAND USE
MODEL THEORY
Operations Research
SWWRP(SYSTEM-WIDE WATER RESOURCES PROGRAM)
Water Pollution and Control
WATER RESOURCES
WATERSHEDS
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Summary:Use of models (conceptual, ecosystem, and decision support models) in systemwide studies is expanding due to requirements for integration of model outputs and due to the emphasis on watershed and regional approaches to water resource problems. Conceptual models assist in integrating the multiple disciplines and models that were brought to bear in a systemwide study providing for a common framework, communication, and identification of significant resources and pathways. By providing a framework for understanding the dynamics and relationships of complex systems, conceptual models are frequently an initial step in development or selection of numerical or dynamic simulation models. This technical note reports on component categories identified for a template for conceptual model construction (template) and presents application of the template. The template for conceptual model construction is being presented in two technical notes; the first identified categories of descriptors (model construction parameters) that characterize the model (Henderson and O'Neil 2007) [ADA471008] and this, the second note, presents the categories of components for the model. A Baltimore District study, the Middle Potomac Watershed Study, is the basis for an application of the template. Development of the Middle Potomac Conceptual Model followed guidance of the six steps outlined in Henderson and O'Neil (2004) [ADA430410], and model descriptor selection, and component specification. The six-step process resulted in careful and deliberate preparation of the models. Further refinement or revision to the process, descriptors, and components will occur as further models are developed. See also ADA471008, Template for conceptual model construction: Model review and Corps application, ERDC TN-SWWRP-07-4.