
The purpose of this model is to demonstrate time shifting historic data in a Time Series element. This type of model makes it easy to show summary statistics like exceedance probability of annual peak flow rate or mean annual flow rate.

This model simulates a Markov process that randomly switches between a wet state and a dry state to simulate rainfall given some key historic statistics.

This simple model shows one method for allocating competing demands on a Reservoir.

The GoldSim 11.0 implementation of AWBM for calculating runoff from rainfall on a watershed. This model is used for water yield and water management studies.

This model counts the number of days in which some failure occurs. A failure event is defined as a reservoir overflow occurrence for any duration within a single day.

This model includes 4 different methods of time shifting to be used in a wider array of applications.

This is a GoldSim impleneation of the NRCS WinSRM model for calculating runoff from a snowmelt driven watershed.

This model demonstrates the use of GoldSim's optimization feature to calibrate a snowmelt model by automatically adjusting parameters to achieve correlation between historic streamflow record and streamflow calculated in the model.

This model illustrates how you can reference a Time Series like a lookup function to access future or past values.

The interaction between a reservoir and a large aquifer is simulating using a simple seepage model

Reusable model providing a modified Muskingum hydrologic routing formulation

Commonly used Muskingum hydrologic routing is implemented in GoldSim with Reservoir elements

Watershed runoff is calculated for three catchments using the same function but different inputs

This model provides simulation of nonpoint source pollutant buildup and washoff with automated calibration.

This model presents a pond discharge versus pond capacity optimization problem.

This model provides a native GoldSim implementation of the Hydrological Simulation Program Fortran (HSPF).

This model illustrates one way in which GoldSim can be used to generate a stochastic precipitation record.

Use Markov process to simulate stochastic precipitation events based on a wet state and dry state.

In this example, a SubModel is used to calculate average monthly rainfall amounts from a Time Series element containing rainfall rate data

This example shows how to use a vector constructor to generate a vector of month flow rates for integration and other calculations

This model provides a native GoldSim implementation of the Hydrological Simulation Program Fortran (HSPF) and divides the watershed into multiple subcatchments.

Exactly the same implementation as the original AWBM except this has added capability to incorporate multiple subcatchments using GoldSim's array label sets.

Using the GoldSim optimization module, a rainfall generator is calibrated using historical data

This model accounts for rainfall recharge when calculating groundwater inflow in a mine pit using the DupuitForchheimer equation.

Simulates the inflow and outflow from a pond that controls discharge using a simple orifice in a riser outlet works

Simulate runoff from multiple subbasins in a watershed using AWBM in GoldSim

Calculate the direct runoff hydrograph using a triangular unit hydrograph and direct precipitation

Use GoldSim to perform a flood frequency analysis of daily streamflow records using the Log Pearson III distribution