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The ResSim Blog

This blog was created by Kevin Fagot, a water resources engineer for the modeling of reservoir systems in HEC-ResSim. Programming examples in Python and Jython (scripting language used in HEC-ResSim) are also shown. Since data development and analysis plays an important part in the development and use of this model, you will also find examples of this using Python, Microsoft Excel, and HEC-DSSVue. The posts are labeled by topic so you can use the menu on the right or search by topic.

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Showing posts from September, 2017

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Developing Simulations in HEC-ResSim

on September 20, 2017

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Savannah River System Reservoirs during Hurricane Irma

on September 15, 2017

General Reservoir Operations

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Apalachicola-Chattahoochee-Flint (ACF) System Reservoirs during Hurricane Irma

on September 15, 2017

General Reservoir Operations

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Rainfall gage readings from Hurricane Harvey

on September 12, 2017

General Reservoir Operations

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Buffalo Bayou at Piney Point, Texas (Comparison of 2009, 2015, 2016, and 2017 rises)

on September 06, 2017

General Reservoir Operations

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Buffalo Bayou Gages Downstream of Houston Area Reservoirs, Addicks and Barker

on September 05, 2017

General Reservoir Operations

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Location and Pool Elevations of Houston Area Reservoirs, Addicks and Barker

on September 05, 2017

General Reservoir Operations

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Microsoft Excel Basic #2 - Computations on multiple columns of data

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How to Develop a Working Model

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Python Intermediate #3 - Random Multiplication Practice using randint

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Additional error fixing in HEC-ResSim

This post will cover two additional error messages that can occur in the development of an HEC-ResSim model. Special thanks to Logan Osgood-Jacobs of the Seattle District of the Corps of Engineers for supplying these screenshots. Error 1: Ghost Nodes Ghost nodes, or nodes that you did not intend to include in the model, seem to periodically occur in the development of ResSim models. I have gotten these when I have had to edit the watershed configuration and then perform an update to the reservoir network. However, I believe that others have gotten ghost nodes in the initial development of the model. So, how do you tell if you have a ghost node? The most direct way is getting an error message similar to the one below when you compute your simulation. This error message is indicating an issue with Node 81. In the Reservoir Network Module, go to Reports > Advanced > Node List. The report is shown below. There is a node named, "Node 81". Not havi

Computing Kendall's Tau parameter for time series data

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