Lower Red/Black - Calibration and Validation HEC-HMS Model for Louisiana Watershed Initiative
This is the Calibration and Validation HUC08040301 and HUC08040305 Lower Red/Black (LRBK) HEC-HMS v4.9 model developed by Freese and Nichols, Inc. (FNI) for the Louisiana Watershed Initiative (LWI). This model leverages observed rainfall data and produces flow hydrographs to be used in the HUC08040301 and HUC08040305 (LRBK) HEC-RAS v6.3.1 calibration and validation model. The model covers the entire HUC8 and used the vertical datum NAVD88 and the Albers Conical Equal Area D_North American_1983 projection.
Keywords: ['Frequency', 'HEC', 'hec-hms', 'HMS', 'Hydrology', 'lwi', 'Model', 'modeling region 2', 'planning region 2', 'Software', 'USACE']
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Lower Ouachita - Calibration and Validation HEC-HMS Model for Louisiana Watershed Initiative
This is the Calibration and Validation HUC08040207 Lower Ouachita (OU) HEC-HMS v4.9 model developed by Freese and Nichols, Inc. (FNI) for the Louisiana Watershed Initiative (LWI). This model leverages observed rainfall data and produces flow hydrographs to be used in the HUC08040207 OU HEC-RAS v6.3 calibration and validation model. The model covers the entire HUC8 and used the vertical datum NAVD88 and the Albers Conical Equal Area D_North American_1983 projection.
Keywords: ['Frequency', 'HEC', 'hec-hms', 'HMS', 'Hydrology', 'lwi', 'Model', 'modeling region 2', 'planning region 3', 'Software', 'USACE']
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Amite Compound Flood Pilot LWI HEC-HMS model
This model is the calibrated hydrological HEC-HMS model for the Louisiana Watershed Inititative (LWI) pilot study conducted for quantifying compound flood hazard in regions near the coastline, where both riverine and coastal flood drivers are significant contributors to total flood hazard, known as the transition zone (TZ).
The procedure to quantify compound flood hazard involves 1) developing numerical models capable of simulating rainfall-runoff and coastal hydrodynamic processes, 2) generating a set of tropical storms and non-tropical storms (i.e., all storm types other than tropical storms, which include extratropical cyclones, frontal storms, and convective storms) representative of compound flooding conditions in the basin(s) of interest, 3) simulating storms incorporating a range of compound flooding conditions using the numerical models, and 4) leveraging Joint Probability Method – Optimal Sampling (JPM-OS) and extreme value analysis (EVA) methods to assess water level recurrence intervals for tropical and non-tropical events respectively. The procedures documented within the LWI pilot study memoranda balance rigor with computational efficiency to produce a set of annual exceedance probability (AEP) water surface elevations within the basin(s) of interest. Once methods are finalized, water level AEPs and other model data could be used to inform planning and design activities in the coastal and compound flood transition zone.
This LWI Amite Calibrated HEC-HMS Model is meant to address item 1) in the paragraph above for hydrological modeling. The outputs from this model are used in the LWI Amite HEC-RAS Model.
The hydrologic and hydraulic model calibration and validation tests assessed model performance relative to observations from a suite of six storms: Hurricane Katrina (2005), Hurricane Gustav (2008), Hurricane Isaac (2012), Hurricane Barry (2019), and two non-tropical storms from March and August 2016, respectively. Performance was assessed using quantitative metrics including mean volume bias, Nash-Sutcliffe efficiency, and root-mean-square error (RMSE), as recommended by Moriasi et al. (2007).
Source: MODEL CALIBRATION AND VALIDATION - AMITE RIVER BASIN PILOT STUDY TECHNICAL MEMORANDUM The Water Institute, Hugh Roberts, Brendan Yuill, Nate Young, et. al. (2021)
Keywords: ['Amite', 'calibration', 'Frequency', 'HEC', 'hec-hms', 'HMS', 'Hydrology', 'LWI', 'Model', 'pilot study', 'Software', 'USACE', 'validation']
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Bayou D'Arbonne - Calibration and Validation HEC-HMS Model for Louisiana Watershed Initiative
This is the Calibration and Validation HUC08040206 Bayou D'Arbonne (AR) HEC-HMS v4.9 model developed by Freese and Nichols, Inc. (FNI) for the Louisiana Watershed Initiative (LWI). This model leverages observed rainfall data and produces flow hydrographs to be used in the HUC08040206 AR HEC-RAS v6.3 calibration and validation model. The model covers the entire HUC8 and used the vertical datum NAVD88 and the Albers Conical Equal Area D_North American_1983 projection.
Keywords: ['Frequency', 'HEC', 'hec-hms', 'HMS', 'Hydrology', 'lwi', 'Model', 'modeling region 2', 'planning region 3', 'Software', 'USACE']
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Castor - Calibration and Validation HEC-HMS Model for Louisiana Watershed Initiative
This is the Calibration and Validation HUC08040302 Castor (CA) HEC-HMS v4.9 model developed by Freese and Nichols, Inc. (FNI) for the Louisiana Watershed Initiative (LWI). This model leverages observed rainfall data and produces flow hydrographs to be used in the HUC08040302 CA HEC-RAS v6.3.1 calibration and validation model. The model covers the entire HUC8 and used the vertical datum NAVD88 and the Albers Conical Equal Area D_North American_1983 projection.
Keywords: ['Frequency', 'HEC', 'hec-hms', 'HMS', 'Hydrology', 'lwi', 'Model', 'modeling region 2', 'planning region 2', 'Software', 'USACE']
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Little - Calibration and Validation HEC-HMS Model for Louisiana Watershed Initiative
This is the Calibration and Validation HUC08040304 Little (LI) HEC-HMS v4.9 model developed by Freese and Nichols, Inc. (FNI) for the Louisiana Watershed Initiative (LWI). This model leverages observed rainfall data and produces flow hydrographs to be used in the HUC08040304 LI HEC-RAS v6.3.1 calibration and validation model. The model covers the entire HUC8 and used the vertical datum NAVD88 and the Albers Conical Equal Area D_North American_1983 projection.
Keywords: ['Frequency', 'HEC', 'hec-hms', 'HMS', 'Hydrology', 'lwi', 'Model', 'modeling region 2', 'planning region 2', 'Software', 'USACE']
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Dugdemona - Calibration and Validation HEC-HMS Model for Louisiana Watershed Initiative
This is the Calibration and Validation HUC08040303 Dugdemona (DU) HEC-HMS v4.9 model developed by Freese and Nichols, Inc. (FNI) for the Louisiana Watershed Initiative (LWI). This model leverages observed rainfall data and produces flow hydrographs to be used in the HUC08040303 DU HEC-RAS v6.3.1 calibration and validation model. The model covers the entire HUC8 and used the vertical datum NAVD88 and the Albers Conical Equal Area D_North American_1983 projection.
Keywords: ['Frequency', 'HEC', 'hec-hms', 'HMS', 'Hydrology', 'lwi', 'Model', 'modeling region 2', 'planning region 2', 'Software', 'USACE']
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Bayou Bartholomew - Calibration and Validation HEC-HMS Model for Louisiana Watershed Initiative
This is the Calibration and Validation HUC08040205 Bayou Bartholomew (BW) HEC-HMS v4.9 model developed by Freese and Nichols, Inc. (FNI) for the Louisiana Watershed Initiative (LWI). This model leverages observed rainfall data and produces flow hydrographs to be used in the HUC08040205 BW HEC-RAS v6.3.1 calibration and validation model. The model covers the entire HUC8 and used the vertical datum NAVD88 and the Albers Conical Equal Area D_North American_1983 projection.
Keywords: ['Frequency', 'HEC', 'hec-hms', 'HMS', 'Hydrology', 'lwi', 'Model', 'modeling region 2', 'planning region 3', 'Software', 'USACE']
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Lower Ouachita - Bayou De Loutre - Calibration and Validation HEC-HMS Model for Louisiana Watershed Initiative
This is the Calibration and Validation HUC08040202 Lower Ouachita-Bayou De Loutre (OL) HEC-HMS v4.9 model developed by Freese and Nichols, Inc. (FNI) for the Louisiana Watershed Initiative (LWI). This model leverages observed rainfall data and produces flow hydrographs to be used in the HUC08040202 OL HEC-RAS v6.3.1 calibration and validation model. The model covers the entire HUC8 and used the vertical datum NAVD88 and the Albers Conical Equal Area D_North American_1983 projection.
Keywords: ['Frequency', 'HEC', 'hec-hms', 'HMS', 'Hydrology', 'lwi', 'Model', 'modeling region 2', 'planning region 3', 'Software', 'USACE']
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Bayou D'Arbonne (AR) Louisiana Watershed Initiative (LWI) Models and Data
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Keywords: ['Frequency', 'hec', 'hec-hms', 'hms', 'hydrology', 'lwi', 'model', 'modeling region 2', 'planning region 3', 'Software', 'USACE']
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Bayou Bartholomew (BW) Louisiana Watershed Initiative (LWI) Models and Data
This package consolidates the HUC08040205 - Bayou Bartholomew (BW) Louisiana Watershed Initiative modeling program and related data that was developed by Freese and Nichols, Inc. (FNI).
For project planning and design, it is recomended to use the final LWI base models: "Bayou Bartholomew - Design Storm Atlas 14 Everywhere HEC-RAS Model for Louisiana Watershed Initiative" and "Bayou Bartholomew - Design Storm HEC-HMS Model for Louisiana Watershed Initiative." These models were used as the base model in the provided Proof of Concept model. The results of the design storm models were used in the provided Go-Consequences consequence analyses. The Go-Consequences analysis was verfied using select events in the consequence analysis software HEC-FIA; these results are also provided.
Calibration and Validation models provided in this package are provided for reference.
The modeled streams include: Bayou Bartholomew, Horse Bayou, Cypress Bayou, Bayou De Glaize, and Chemin-A-Haut Bayou. The terrain used for modeling primarily sources the 2021 Department of Transportation and Development LiDAR with bathymetry incorporated from surveys conducted by Bryant Hammett & Associates in 2021, 2022, and 2023. The model and terrain use the vertical datum NAVD88 and the State-Plane projection NAD 1983 (2011) State Plane Louisiana North FIPS 1701 (US Feet).
Keywords: ['Frequency', 'hec', 'hec-hms', 'hms', 'hydrology', 'lwi', 'model', 'modeling region 2', 'planning region 3', 'Software', 'USACE']
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