Slide 1

1 Multiple Purpose Dam & Reservoir Slide 2 2 Objectives l Describe real-time water control mission l Introduce new Corps Water Management System (CWMS) l Concepts l Components l Models l Products l Applications l Questions ?? Slide 3 3 Perspective l Corps regulates 700 reservoirs nationwide l Real-time water control management decisions are driven by observed data & forecasted conditions l There is need for a swift, accurate, & reliable data management system to support real-time decision making Slide 4 4 Julies District Slide Susquehanna & Potomac River Basins Slide 5 5 Water Control Mission To regulate reservoir projects, in real time, for in-lake and downstream benefits in accordance with authorized project purposes Slide 6 6 Project Purposes & Benefits Flood Control Recreation Water Supply Water Quality Hydropower Flow Augmentation (Navigation) Slide 7 7 Real-Time Water Control Data Precipitation Observed Downstream Flow Reservoir Discharge Downstream Flood Level Slide 8 8 Water Control Management Data Processing Data Storage Modeling Observed Data Water Control Management Decisions Instructions SERVERS Public and Cooperators Field Office Weather Forecast Slide 9 9 Corps Water Management System An integrated system of hardware, software, and communication resources supporting the Corps real-time water control management mission Slide 10 10 CWMS Development l HEC - system developer l CURG - requirements, design, & testing l Status l Concepts: mid-1990s l Development: 1997 to 2001 l Field deployment: 2001 to 2002 l Current version: 1.3 Slide 11 11 Data Collection Data Base Watershed Modeling Information dissemination Data Visualization CWMS Components Slide 12 12 Data Acquisition l Collect: H Real-time data: observed stream flow, precipitation, temperature, water quality, gate settings, reservoir levels, etc. H Static data: physical data for model development l Decode l Validate l Transform Slide 13 13 Data Storage l ORACLE is CWMS database l Interfaces with other databases (incl DSS) l Accessible by multiple users l Modeling l Extracts data for analyses l Posts results for decision-making Slide 14 14 Data Visualization Slide 15 15 Data Dissemination l Common information source l Data & information placed on WEB- based platform l Available to Corps users & outside interests l Real-time availability Slide 16 16 Watershed Modeling RAS (Hydraulics) FIA (Damages) ResSim ( Storage ) HMS (Hydrology) Slide 17 17 H HEC-HMS Hydrologic Modeling System Computes runoff from observed & forecasted precipitation Slide 18 18 HEC-RESSIM Reservoir Simulation System Simulates reservoir regulation using inflow hydrographs & project characteristics Slide 19 19 HEC-RAS River Analysis System Analyzes river hydraulics to compute water depth, velocity, & inundation boundaries Slide 20 20 HEC-FIA Flow Impact Analysis Assesses damages & benefits based on river stage Slide 21 21 Real-Time Forecast I see Hurricane Ivan in your future. Slide 22 22 CWMS Products Slide 23 23 Status of Data Acquisition Slide 24 24 Above Flood Stage Cautionary Stage Threshold Bars Slide 25 25 Plots Inflow Outflow Slide 26 26 Forecast Results Time of Forecast Inflow Outflow Lake Elevation Slide 27 27 Impacts & Required Responses Slide 28 28 Data Dissemination Slide 29 29 Flood Inundation Mapping Slide 30 30 CWMS Applications l Real-time watershed forecasts l Water control decision support l Emergency planning and response l Project planning (new projects, alternative projects, modified regulation) l Post-event analyses (benefits) l Flood plain studies Slide 31