# Presentation: 033977

## NWS FLDWAV ANALYSIS TOOL

**FLDAT**
- Office of Hydrologic Development
- NOAA/NWS/Hydrology Laboratory
- Janice M. Sylvestre
**WMO/NOAA****Hydrologic Forecasting Course**
- NWS Training CenterKansas City, MOOctober 27, 2003

## Hydraulic Modeling Components 

- FLDWAV: NWS Hydraulic Routing Model
-       Stand-Alone (R&D Application)
-       Operation within NWSRFS
- FLDAT: FLDWAV Analysis Tool
-      Generates input deck for FLDWAV
-      Displays and analyzes FLDWAV results
- FLDVIEW: Flood Forecast Mapping Application
-      Displays the extent of flooding
- FLDIMS: Flood Internet Mapping Service
-      View flood maps in addition to other layers over the Internet

## FLDWAV Analysis ToolObjectives

-  Generate a FLDWAV input deck using a GUI
-  Convert HEC cross sections to FLDWAV format
-  Generate cross sections using GIS
-  Visually display hydraulic information from FLDWAV
-  Develop database to contain FLDWAV input files
-  Analyze FLDWAV results
-  Add calibration capabilities

## FLDWAV Analysis ToolBenefits

-  Reduced time to build FLDWAV datasets
-  Reduced time to calibrate FLDWAV models
-  Improve forecasters’ ability to analyze FLDWAV   results
-  Centralized location for all data used for RM   models

## FLDAT Components

-  Interactive Input Component (FLDINP)
-  Cross Section Analysis Component (FLDXS)
-  Graphical Output Component (FLDGRF)
-  Output Analysis Component
-  Database Component

## FLDATInteractive Input Component

- Current Capabilities
-   - Generates input file for      FLDWAV (stand-alone)
-   - Displays hydrographs,     cross sections, invert profile,    empirical rating curves
-   - Export operational FLDWAV    segment

## FLDATInteractive Input Component

- Future Enhancements
-  - Error checking capabilities
-  - Help info/documentation
-  - Input analysis capability
-  - Enhanced editing capabilities
-  - Schematic (ability to create   input file using objects)

## FLDAT: Cross Section Analysis Component 

- Station–Elevation points are visually displayed to represent the topography

- The actual cross section is converted to FLDWAV format

## FLDATCross Section Analysis Component

- Current Capabilities
-      - Ability to visually display cross sections from various sources
-           (e.g. USACE models) and interactively convert to NWS format (b,h)
-      - Ability to average cross sections
-      - Ability to handle levees and multiple channels
-      - GIS Capability
-  Future Enhancements
-      - Data quality checking
-      - Ability to extract pertinent info from raw data sets (e.g., roughness coefficients)
-      - Ability to recommend the minimum number of required cross sections

## FLDATGIS Cross Section Capability

- Given:
-   Topographic images
-   DEM
- After drawing the river centerline and placing the cross sections,  FLDXS will generate the cross section profile and export cross section data in FLDWAV format.

## FLDATGraphical Output Component

- Current Display Capabilities
-      - Profiles of peak conditions (elevation and discharge)
-      - Discharge hydrographs (computed and observed) at any cross section
-      - Water surface elevation hydrographs (computed and observed) at any cross       section
-      - Cross sections showing the peak conditions at any location
-      - Rating curves
-      - External boundary conditions.
-      - Multiple profiles at any time
-      - Multiple hydrographs at any location
-      - Graphically display all hydraulic info in output file based on JNK
-      - Display information on multiple rivers
-      - Print capability
-  Future Enhancements
-      - Compare multiple output displays
-      - Display shape and image files

## FLDATGraphical Output Component

- The Bird’s Eye View allows the user to quickly view the conditions of the river via a snapshot.

## FLDATGraphical Output Component

- The user may also view the river hydraulics with data groupings that show selected conditions.

## FLDATGraphical Output Component

- The user may view cross sections in various ways.

## FLDATOutput Analysis Component

- Capabilities
-      - Capture “blow-ups” and analyze for potential causes
-      - Anticipate model instability and provide warning messages

## FLDWAV Analysis Tool Database Component

**FLDWAV Analysis Tool ****Database Component**

-  The RM database component    will store data for all river   mechanics models.
-  FLDAT will export all FLDWAV    info into a database compatible   with IHFS logical data model.
-  FLDAT will also import   FLDWAV data based on river   components.

## FLDATFuture Components

-  Launch FLDWAV, FLDVIEW, and FLDXS applications from FLDAT
-  Calibration Analysis
-      - Provide volume checks on flow data within the model
-      - Analyze invert profile to determine potential problems with shallow depths
-      - Automate as much of the “Procedures” document as possible
-      - Interactively update Manning n values, rerun FLDWAV and review results
-  Time Series Analysis
-      - Extract time series needed for calibration from various sources, display
-         graphically, and write in FLDWAV or DATACARD format
-      - Create time series at river confluences
-      - Convert reservoir pool levels to msl
-      - Compute missing time series values
-      - Combine time series
-      - Generate interpolated time series (e.g. generate 1-hr t.s. from 6-hr t.s.)
-      - Check time series data for accuracy

## FLDAT Specifications

- System Hardware:
- 	Unix Workstation, Linux or Windows 95/98/Me/NT/XP
- System Software:
- 	Written in Java 1.1.8 with Swing 1.1.1
- 	JRE 1.3 (Linux)
- 	JClass 4.5
- 	ESRI Arcview 3.1+ (for GIS capability)
- 	ESRI 3D Analyst (for GIS capability)
- 	mySQL 2.23 (for database component)
- 	myOBDC 2.5 (for database component)