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PUBLICATION NOTICE: Application and Validation Study of the HEC-RAS-RVSM Model to the Sacramento River

US Army Engineer Research and Development Center
Published July 8, 2019

The US Army Engineer Research and Development Center has published the report/note described and linked below. Approved for public release; distribution is unlimited.

Report Number:



Application and Validation Study of the HEC-RAS-RVSM Model to the Sacramento River 


Zhonglong Zhang, Billy Johnson, Junna Wang, and Blair Greimann


The riparian vegetation simulation module (RVSM) was developed and integrated into the Hydrologic Engineering Center-River Analysis System (HEC-RAS) to predict spatially explicit seed dispersal, seedling establishment, plant growth, and mortality in response to riverine hydraulic conditions. The HEC-RAS-RVSM model is capable of predicting dynamic hydraulic roughness and simulating the interactions of flow and riparian vegetation on floodplains. In this study, the HEC-RAS-RVSM was applied to the Sacramento River reach to evaluate its modeling capabilities with regard to vegetation changes and interactions between flow and riparian vegetation dynamics. The purpose of this Ecosystem Management and Restoration Research Program (EMRRP) technical note is to document the validation study of the HEC-RAS-RVSM model for the Sacramento River reach and provide a user guide for applying this tool.

23 pgs / 2.1 mb


ERDC is a diverse research organization with approximately 2,000 employees operating more than $1 billion in world class facilities at seven laboratories. Its annual program exceeds $1 billion as it supports the Department of Defense and other agencies in military and civilian projects. Principal research areas include Soldier support, Engineered Resilient Systems, Environmental Quality and Installations, Geospatial Research and Engineering, Military Engineering, and Water Resources. “Discover ▪ Develop ▪ Deliver”

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Release no. 19-012