# Presentation: 247767

## CORPS OF ENGINEERS WATER MANAGEMENT SYSTEM

**Brief Overview**

**March 2007**

**“****CWMS”**

## CWMS

**Real-Time Decision Support for Water Management**
**700+ Multipurpose Reservoirs and Flow Control Structures, Thousands of Miles of Levees **
**Expanded Corporate Web-Based Information**

- SWT - John Daylor

**Notes:**
BACKGROUND NOTES:
 The Water Control Data System (WCDS) supports the decision process for the Corps water control management mission.
 Corps is responsible for round-the-clock monitoring and operation of more than 700 CE reservoir, lock and dam and other water control projects, and during flood operations this responsibility expands to include an additional 120+ Section 7 projects.
 Water control management provides critical information and hydrologic decision making that are fundamental to achievement of the full range of benefits from all our projects. 
 The modernized WCDS integrates: watershed scaled - data acquisition, -database storage, real-time model generated prediction of runoff, project inflow and release, operational release scenario and decision support, -river flow and water surface profiles, -inundated area and damage analysis, -flow impact analysis, and information dissemination into a single comprehensive suite of software.
 Incorporates State-of-the-art: watershed, river, and reservoir systems engineering; database management; information dissemination and software engineering.
 Client-Server architecture allows hardware, software and technical resource sharing, with flexible scaling of system for field deployment in single and multiple office installations .
Corporate Class IV Automated Information System (AIS).
 Software Development effort - 1997 to 2001.
 Field Deployment - 2001 to 2002.

## Oracle and DSS Files in CWMS

**Sun Workstation**

**Sun Workstation**

- Database Interface (DBI)

- Oracle Server

- Oracle Files

- CWMS File Manager

- DSS File

- Client Process

- Extract/Post Message

- Extract/Post
- Output Log

- Extract/Post List file

- SWT - John Daylor

## CWMS Components

- Data Collection

- Data Base

**Modeling**

- Information Dissemination

- Data
- Visualization

**CWMS Components**

- SWT - John Daylor

**Notes:**
The components of CWMS can be viewed as a jigsaw puzzle.  There are five interlocking pieces.

The pieces around the perimeter all deal with some aspect of data management:

	acquiring data
	storing data
	visualizing data
	disseminating data

The key component that interacts with all the data management activities is the piece in the middle - watershed modeling.  It is this component that allows us to use observed real-time data and predicted rainfall to create a forecast of future watershed conditions.

## Watershed Modeling

- Data Collection

- Data Base

- Modeling

- Information dissemination

- Data
- Visualization

**Watershed Modeling**

- SWT - John Daylor

**Notes:**
The components of CWMS can be viewed as a jigsaw puzzle.  There are five interlocking pieces.

The pieces around the perimeter all deal with some aspect of data management:

	acquiring data
	storing data
	visualizing data
	disseminating data

The key component that interacts with all the data management activities is the piece in the middle - watershed modeling.  It is this component that allows us to use observed real-time data and predicted rainfall to create a forecast of future watershed conditions.

## Gridded Runoff Analysis

**HEC-HMS**

- SWT - John Daylor

## HEC-ResSim Reservoir Simulation System

**HEC-ResSim**** ****Reservoir Simulation System**

- Simulates reservoir regulation using inflow hydrographs & project characteristics

- SWT - John Daylor

**Notes:**
The main purpose of the second program - the Reservoir Simulation System - is to simulate the operation of a reservoir or system of reservoirs.

## River Profile Modeling

**HEC-RAS****Steady or UnSteady**

- SWT - John Daylor

## Inundation Mapping

**Inundation Mapping**

- SWT - John Daylor

**Notes:**
And there are ways to combined the watershed results with topographic mapping to show, for example, the extent and depth of flooding that would occur from an event.

That provides a quick view of the watershed modeling components and some of the ways we can view the results.  We will be going into that again in greater detail in the demo but that will hopefully give you some flavor for it.

I just have a few more slides that discuss and summarize the features of CWMS as well as its applications and requirements.

## HEC-FIAInput & Output

- Stage hydrographs
- Geographic & economic information
- Damage
- Benefits
- Timetable for
- 	emergency actions

- SWT - John Daylor

**Notes:**
FIA requires the stage or flow at certain key downstream locations and extensive geographic and economic information for the basin being analyzed.

FIA will compute the damage caused by an event in terms of $ damages, # of acres flooded, # of people affected, or # of structures inundated.

FIA also computes benefits.  Back in ResSim we said that the downstream flows are computed for 2 conditions - with and without the projects in place.  FIA uses those 2 conditions to compute the benefits or damages prevented by a project.

Finally, FIA can generate a timetable of emergency actions that need to be taken during an event.

## CWMS CAVI

**CWMS CAVI**

- SWT - John Daylor

## Degree of Automation

**Degree of Automation**

**Degree of Flexibility**

**X**

**CWMS**

_**ADAPTABILITY & USABILITY?**_

- SWT - John Daylor

## QUESTIONS?

**QUESTIONS?**

- SWT - John Daylor