LWI Region 3 Modeling Overview

Table of Contents

1 2

Region 3 Description

6 8

LWI Model Development Phases

3 Hydrologic and Hydraulic Modeling Methodology

10 10

3.1 Analysis of Record for Calibration (AORC)

3.1.1 Data Sources and Specifications

10

3.1.2 Development Process

10

3.1.3 Converting AORC to Gridded Precipitation for Modeling

11

3.2 Land Cover Classification

12 12 14 15 16 16 18 18 20 20 20 22 25 28 28 30 34 34 34 34 36 36

3.2.1 Remote Sensing and Land Cover Classification

3.3 LiDAR

3.3.3 Terrain Modifications for Modeling

3.4 Survey Planning

3.4.1 LWI Region 3 Survey Scope and Methodology

3.5 Soil Data Processing and Integration

3.5.1 Soil Data - Parameter Selection and Processing

3.6 Watershed-Specific Description

3.6.1 Boeuf

a. Hydrologic Model (HEC-HMS)

b. Hydraulic Model Setup (HEC-RAS 2D) c. Hydraulic Model Calibration and Validation

3.6.2 Macon

a. Hydrologic Model (HEC-HMS) b. Hydraulic Model (HEC-RAS)

3.6.3 Tensas

a. Hydraulic Model (HEC-RAS) b. HEC-RAS Boundary Options

c. HEC-RAS Model Calibration and Validation

3.6.4 Cocodrie

a. Hydraulic Model (HEC-RAS)

2

LWI REGION 3 TRAINING

LOUISIANA WATERSHED INITIATIVE