Corps Water Management SystemCorps Water Management System

Hydrologic Engineering Center

USACE Hydrologic Engineering CenterUSACE Hydrologic Engineering Center Davis, CADavis, CA

ObjectivesObjectives

•Overview and Concept of Overview and Concept of CWMSCWMS

•Scope for ACF Basin CWMS Scope for ACF Basin CWMS DeploymentDeployment

•ACT/ACF Emergency Action ACT/ACF Emergency Action PlanPlan

Water Control MissionWater Control Mission

• Real-Time Decision Real-Time Decision Support for Water Support for Water ManagementManagement

• 700+ Multipurpose 700+ Multipurpose Reservoirs and Reservoirs and Flow Control Flow Control Structures, Structures, Thousands of Miles Thousands of Miles of Levees of Levees

• Expanded Expanded Corporate Web-Corporate Web-Based InformationBased Information

CWMSCWMSAn integrated An integrated system of system of hardware, software, hardware, software, and communication and communication resources resources supporting Corps’ supporting Corps’ real-time water real-time water control missioncontrol mission

HistoryHistoryManual data Manual data collection, storage, collection, storage, analysis, analysis, interpretation, interpretation, modeling historic modeling historic data beginsdata begins

Automated data systems, satelliteAutomated data systems, satellite broadcast of data, modeling toolsbroadcast of data, modeling tools develop, deployment of Harris develop, deployment of Harris computer systems.computer systems.

Harris systems gone, PCs, Harris systems gone, PCs, workstations take over mainframe workstations take over mainframe functions, some real-time modeling,functions, some real-time modeling,and data handling, corporate and data handling, corporate WCDS modernization plan evolves WCDS modernization plan evolves and work on modernized system and work on modernized system beginsbegins

CWMS integrated suite of CWMS integrated suite of hydrologic, operations and impact hydrologic, operations and impact analysis models available, analysis models available,

CWMS deployed CWMS deployed Corps-wide Corps-wide development of development of forecast models for forecast models for all major all major watershedswatersheds..

1975 1985 1995 2000

20092009

CWMS Software Integrates the CWMS Software Integrates the Processing from Data to Water Processing from Data to Water Management DecisionsManagement Decisions

Data ProcessingData Storage

ModelingObserved Data

Water Control Management Decisions

Instructions

SERVERS

Public and CooperatorsField Office

WeatherForecast

CWMS - Major Components CWMS - Major Components • DatabaseDatabase

– Stores hydromet data in Oracle DBMSStores hydromet data in Oracle DBMS– Manages retrieval and display of same Manages retrieval and display of same

• Data Acquisition (Observations)Data Acquisition (Observations)– Collects real-time data from data streamsCollects real-time data from data streams– Decodes, validates, and transforms the raw dataDecodes, validates, and transforms the raw data

• Modeling (Forecasts)Modeling (Forecasts)– Manages model configurations for watershedsManages model configurations for watersheds– Runs models for operational forecastsRuns models for operational forecasts

User Control and Visualization

DB Interface

DD

Extract/Post

FSF

SHEF Decoder

Transformer Verifer

Data Manager Queue

Model Working Files

ArcInfo

GIS FIA RAS ResSim HMS

DB

Oracle

DA SHEF Data

DD Manager Web Server

CAVI Server CAVI Clients

CAVI

Process/ Alarm Status

DA FSP DD

Current Data

Model Results

MFP HFP

GIS CorpsView (ArcView)

Simulation Modeling

DB Interface

DD

Extract/Post

FSF

SHEF Decoder

Transformer Verifer

Data Manager Queue

Model Working Files

ArcInfo

GIS FIA RAS ResSim HMS

DB

Oracle

DA SHEF Data

DD Manager Web Server

CAVI Server CAVI Clients

CAVI

Process/ Alarm Status

DA FSP DD

Current Data

Model Results

MFP HFP

GIS CorpsView (ArcView)

Data Collection

Data Base

ModelingInformation

disseminationData

Visualization

CWMS ComponentsCWMS Components

Data AcquisitionData Acquisition Collect: Collect:

Static dataStatic data: physical data for : physical data for model developmentmodel development

Real-time dataReal-time data: observed stream : observed stream flow, precipitation, temperature, flow, precipitation, temperature, water quality, gate settings, water quality, gate settings, reservoir levels, etc.reservoir levels, etc.

DecodeDecode ValidateValidate TransformTransform

Data VisualizationData Visualization

Model ResultsModel Results

Tim

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For

ecas

tTi

me

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orec

ast

Tabular InformationTabular Information

Data DisseminationData Dissemination

Real-Time Simulation Modeling for Real-Time Simulation Modeling for Decision SupportDecision Support

I see a hurricane in your future.

Data Collection

Data Base

ModelingInformation

disseminationData

Visualization

RAS(Hydraulics)

FIA(Damages)

ResSim(Storage)

HMS(Hydrology)

Watershed Modeling

Modeling

The Modeling ProcessThe Modeling Process1) Check status & currency of

real-time data2) Select a forecast time3) Adjust model parameters4) Perform model

computations5) View results6) Modify model parameters as

necessary7) Re-compute simulation

Precipitation AnalysisPrecipitation Analysis• Precipitation processed on a Precipitation processed on a

grid basis.grid basis.• Observed data from NEXRAD or Observed data from NEXRAD or

interpolated from gages.interpolated from gages.• Future Precipitation Scenarios:Future Precipitation Scenarios:

– NWS Quantitative Precipitation NWS Quantitative Precipitation Forecasts (QPF)Forecasts (QPF)

– Multiples of the QPFMultiples of the QPF– Manual-entry or standard Manual-entry or standard

scenarios (What if?)scenarios (What if?)• TimingTiming• Location (watershed “zones”)Location (watershed “zones”)

HEC-ResSimHEC-ResSim Reservoir Simulation Reservoir Simulation SystemSystem

Simulates reservoir regulation using Simulates reservoir regulation using inflow hydrographs & project inflow hydrographs & project characteristicscharacteristics

River Hydraulics River Hydraulics HEC-RASHEC-RAS

• Analyzes river hydraulics to Analyzes river hydraulics to compute water depth, velocity, & compute water depth, velocity, & inundation boundaries inundation boundaries

• Computes water surface profiles Computes water surface profiles and stage hydrographs from HEC-and stage hydrographs from HEC-ResSim hydrographsResSim hydrographs

• Steady-flow or unsteady-flow Steady-flow or unsteady-flow analysis.analysis.

• Channel friction adjusted through Channel friction adjusted through CWMS interfaceCWMS interface

• Used in conjunction with Arc, Used in conjunction with Arc, inundation boundaries and depth inundation boundaries and depth maps are computed then viewed maps are computed then viewed with CorpsView, an extension to Arcwith CorpsView, an extension to Arc

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Bald Eagle Cr. for the WCDS Project Plan: 1) 10inforec 2) 2inforec

Main Channel Distance (ft)

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Legend

WS Peak Flows - 10inforec

WS Peak Flows - 2inforec

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River Profile ModelingRiver Profile Modeling

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540

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Bald Eagle Cr. for the WCDS Project Plan: Unsteady with Bridges and Dam

Main Channel Distance (ft)

Ele

vatio

n (ft

)

Legend

WS 19Feb1999 0200

Ground

Loc Hav

Bald Eagle Cr. for the WCDS Project Plan: Unsteady with Bridges and Dam Legend

WS 19Feb1999 0200

Ground

Bank Sta

Levee

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Economic / Impact Economic / Impact Analysis (HEC-FIA)Analysis (HEC-FIA)

• Computes agricultural and Computes agricultural and urban damages and project urban damages and project benefits by “impact area”benefits by “impact area”

• Computes damages and Computes damages and benefits between different benefits between different scenarios, and with and scenarios, and with and without project conditionswithout project conditions

• ““Action tables” provide a Action tables” provide a list and time of actions to list and time of actions to take during an event, take during an event, based on forecasted stagesbased on forecasted stages

River

Level

21

22

23

24

25

26

STA

GE

(FT

)

DAMAGES ($1000)0 100 200 300 400 500 600

CWMSCWMSModel LinkingModel Linking

• HEC-HMS computes forecasted flows HEC-HMS computes forecasted flows fromfrom– Observed precipitation from Observed precipitation from

NEXRAD and rain gagesNEXRAD and rain gages– Future precipitation Future precipitation

forecasts and scenariosforecasts and scenarios– Observed flowObserved flow

• ResSim simulates reservoir operations ResSim simulates reservoir operations and downstream flows from HEC-HMS and downstream flows from HEC-HMS flows.flows.

• HEC-RAS computes stages and HEC-RAS computes stages and inundation areas from ResSim flows.inundation areas from ResSim flows.

• FIA computes damages and impacts from FIA computes damages and impacts from HEC-RAS stages or ResSim flows.HEC-RAS stages or ResSim flows.

• Inundation areas and depths are Inundation areas and depths are displayed in CorpsView, an extension to displayed in CorpsView, an extension to ARCARC..

CWMS SummaryCWMS Summary• Comprehensive, integrated Comprehensive, integrated

system for real-time water system for real-time water control decision supportcontrol decision support

• Complete data retrieval / Complete data retrieval / verification / database verification / database systemsystem

• Full range of hydrologic / Full range of hydrologic / hydraulic modeling software hydraulic modeling software to evaluate operational to evaluate operational decisions and compare the decisions and compare the impact of various “what if?” impact of various “what if?” scenariosscenarios

• Client / Server architecture, Client / Server architecture, with full set of visualization with full set of visualization tools to evaluate data and tools to evaluate data and model resultsmodel results

ACF Basin CWMS ACF Basin CWMS DeploymentDeployment• The ACF basin is selected in the SAD The ACF basin is selected in the SAD

region.region.• Funded by the U.S. Army Corps of Funded by the U.S. Army Corps of

Engineers’ Hydrologic Engineering Engineers’ Hydrologic Engineering Center (HEC)Center (HEC)

• Being conducted by WEST Consultants, Being conducted by WEST Consultants, Inc., HEC’s BPA contractorInc., HEC’s BPA contractor

• Timeline: October 2009 – September Timeline: October 2009 – September 20102010

Major Tasks Major Tasks • HEC-HMS rainfall-HEC-HMS rainfall-

runoff simulationrunoff simulation• For the entire For the entire

watershedwatershed• Use information Use information

from existing from existing hydrologic models hydrologic models as much as possibleas much as possible

• Based on gridded Based on gridded precipitationprecipitation

• Extensive model Extensive model calibration/validatiocalibration/validationn

Major Tasks Major Tasks • HEC-ResSim reservoir simulationHEC-ResSim reservoir simulation• Hourly time-stepHourly time-step• Including all Corps’ and GPC projectsIncluding all Corps’ and GPC projects• Convert from the daily model currently Convert from the daily model currently

being developed by the SAM and HECbeing developed by the SAM and HEC• Inflow to HEC-ResSim comes from HEC-Inflow to HEC-ResSim comes from HEC-

HMS and/or NWS HMS and/or NWS • Output from the NWS model will be Output from the NWS model will be

saved as HEC-DSS files and saved as HEC-DSS files and automatically uploaded to the SAM automatically uploaded to the SAM CWMS databaseCWMS database

Major Tasks Major Tasks • HEC-RAS Unsteady Flow HEC-RAS Unsteady Flow

SimulationSimulation• One-dimensional unsteady flow One-dimensional unsteady flow

modelmodel• The geometry is georeferencedThe geometry is georeferenced• Inflow to HEC-RAS comes from HEC-Inflow to HEC-RAS comes from HEC-

HMS/HEC-ResSim and/or NWS/USGS HMS/HEC-ResSim and/or NWS/USGS • Extensive model Extensive model

calibration/validationcalibration/validation

Major Tasks Major Tasks • HEC-RAS Unsteady HEC-RAS Unsteady

Flow SimulationFlow Simulation• Three reachesThree reaches

– Chattahoochee River Chattahoochee River from Lake Lanier to from Lake Lanier to Norcross (approximately Norcross (approximately 20 miles) 20 miles)

– Chattahoochee River Chattahoochee River from West Point to from West Point to Langdale Dam Langdale Dam (approximately 7 to 9 (approximately 7 to 9 miles)miles)

– Apalachicola River from Apalachicola River from Jim Woodruff Dam to Jim Woodruff Dam to Apalachicola BayApalachicola Bay

Major Tasks Major Tasks • HEC-RAS Unsteady HEC-RAS Unsteady

Flow SimulationFlow Simulation• Inundation mapping Inundation mapping

is not part of this is not part of this CWMS deployment CWMS deployment effort.effort.

• It can be done using It can be done using the CWMS model the CWMS model results since the results since the HEC-RAS models are HEC-RAS models are georeferenced.georeferenced.

Major Tasks Major Tasks • HEC-FIA Flood HEC-FIA Flood

Impact AnalysisImpact Analysis• Compute flood Compute flood

damage and benefitdamage and benefit• Two reachesTwo reaches

– Chattahoochee Chattahoochee River from Lake River from Lake Lanier to Norcross Lanier to Norcross (approximately 20 (approximately 20 miles) miles)

– Chattahoochee Chattahoochee River from West River from West Point to Langdale Point to Langdale Dam (approximately Dam (approximately 7 to 9 miles)7 to 9 miles)

Major Tasks Major Tasks • CWMS CWMS

IntegrationIntegration• Link all model Link all model

components components togethertogether

• Test the CWMS Test the CWMS system for system for selected events selected events

• Stress test for Stress test for real-time real-time operational operational forecastforecast

ACT/ACF Emergency Action ACT/ACF Emergency Action PlanPlan• Dam failure analysisDam failure analysis• Inundation Mapping SupportInundation Mapping Support• Stimulus FundedStimulus Funded

PurposePurpose• Documents actions to be taken by project Documents actions to be taken by project

personnel should a distress indicator be personnel should a distress indicator be identifiedidentified

• Emergency Notification Plan which identifies Emergency Notification Plan which identifies the notification procedures for rapid the notification procedures for rapid dissemination of emergency actionsdissemination of emergency actions– Time available for corrective action is most Time available for corrective action is most

criticalcritical• Instantaneous failure – few minutes to 2 daysInstantaneous failure – few minutes to 2 days• Time of travel of flood wave from origin to areasTime of travel of flood wave from origin to areas

What’s required?– Dam Break What’s required?– Dam Break AnalysisAnalysis• Time available for corrective action is most Time available for corrective action is most

criticalcritical– Instantaneous failure – few minutes to 2 daysInstantaneous failure – few minutes to 2 days

• Time of travel of flood wave from origin to Time of travel of flood wave from origin to areas downstream areas downstream

• Inundation maps which indicate the areas Inundation maps which indicate the areas which would be flooded as a result of a which would be flooded as a result of a hypothesized dam failurehypothesized dam failure

ProjectsProjects• ACTACT

– AllatoonaAllatoona– CartersCarters

• ACFACF– BufordBuford– West PointWest Point

ProductsProducts• HEC-GeoRAS and HEC-RAS models to HEC-GeoRAS and HEC-RAS models to

simulate the flows from the tributary simulate the flows from the tributary areas and from the dam in a breached areas and from the dam in a breached and non-breached conditionand non-breached condition1.1. Spillway design discharge, without dam failureSpillway design discharge, without dam failure2.2. Spillway design discharge, with dam failureSpillway design discharge, with dam failure3.3. Dam failure at normal high pool levelDam failure at normal high pool level4.4. Discharge at normal high pool, without dam Discharge at normal high pool, without dam

failurefailure

AnalysisAnalysis• The A/E will apply the models and route the resulting The A/E will apply the models and route the resulting

flows downstream to a point where there is less than flows downstream to a point where there is less than a 2 foot increase in stage between the dam failure a 2 foot increase in stage between the dam failure and non failure casesand non failure cases

• No bridge or culvert data will be used in developing No bridge or culvert data will be used in developing the HEC-RAS model. It is assumed that the effects of the HEC-RAS model. It is assumed that the effects of a dam or culvert would be minor in comparison to the a dam or culvert would be minor in comparison to the magnitude of the flows resulting from dam failure. magnitude of the flows resulting from dam failure.

• Summary tables of peak flows, stages, flood wave Summary tables of peak flows, stages, flood wave arrival time, and velocities by stationarrival time, and velocities by station

Data CollectionData Collection• To perform the dam failure analyses To perform the dam failure analyses

and inundation mappingand inundation mapping– Available 10m DEMs from the USGS Available 10m DEMs from the USGS

National Elevation Dataset National Elevation Dataset – Current Water Control Manuals (WCM)Current Water Control Manuals (WCM)

Questions?Questions?