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Real-time Data Collection in Flood Warning Systems.

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Presentation on theme: "Real-time Data Collection in Flood Warning Systems."— Presentation transcript:

1 Real-time Data Collection in Flood Warning Systems

2 Flood Warning System Benefits Flood warning systems help reduce flood damages through early detection of potential flooding and the issuance of flood warnings. Flood warning systems help reduce flood damages through early detection of potential flooding and the issuance of flood warnings. Upon receipt of flood warnings, those individuals affected initiate response activities designed to protect life and property. Upon receipt of flood warnings, those individuals affected initiate response activities designed to protect life and property. As the time to flood detection and warning decreases, the time available for response increases. As the time to flood detection and warning decreases, the time available for response increases. This is a key objective of the flood warning system. This is a key objective of the flood warning system.

3 Flood Warning System Components Real-time data collection of rainfall, water level, and weather information. Real-time data collection of rainfall, water level, and weather information. Critical level detection and alarm. Critical level detection and alarm. Automated data dissemination. Automated data dissemination. Flood forecasting using watershed and channel models. Flood forecasting using watershed and channel models. Inundation mapping using GIS. Inundation mapping using GIS.

4 Web Page Server Internet Database Data Collection Base Station Forecast Workstation Database Radio Receiver Flood Warning System Network Diagram Pager Warning Printer Telephone Jack Remote Station Remote Station

5 Real-time Data Collection Remote stations measure rainfall, water level, weather, and snow parameters. Remote stations measure rainfall, water level, weather, and snow parameters. Remote data is transmitted to a base station computer. Remote data is transmitted to a base station computer. Base station software records data, checks for validity, tests for alarm criteria, and sends data to other hosts for analysis. Base station software records data, checks for validity, tests for alarm criteria, and sends data to other hosts for analysis.

6 Rainfall Station Tipping bucket rainfall sensor Tipping bucket rainfall sensor Electronics package counts gauge tips Electronics package counts gauge tips Radio transmits data to base station Radio transmits data to base station

7 Rainfall station near Petaluma, CA Rainfall station near Petaluma, CA

8 Rainfall station at the Panama Canal Rainfall station at the Panama Canal

9 Water Level Station Shaft encoder connected to float measures changes in water level. Shaft encoder connected to float measures changes in water level. Pressure transducer measures water pressure to determine water level. Pressure transducer measures water pressure to determine water level. Electronics package counts samples level sensor data and smoothes readings. Electronics package counts samples level sensor data and smoothes readings. Radio transmits data to base station. Radio transmits data to base station.

10 Level station at Deer Creek, Sacramento Level station at Deer Creek, Sacramento

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12 Tidal station at Milford, CTTidal station at Milford, CT

13 Wireless Links to Sensors Levels sensors cannot always be located near the electronics equipment. Levels sensors cannot always be located near the electronics equipment. 900MHz radios are used as a wireless link to a remote sensor. 900MHz radios are used as a wireless link to a remote sensor.

14 Wireless Link Drawing

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17 Weather Station Weather station sensors: Weather station sensors: Wind speed/direction Temperature Relative Humidity Barometric Pressure Snow water equivalent Snow depth

18 Weather station at the Panama Canal Weather station at the Panama Canal

19 Yavapai County Arizona Yavapai County Arizona

20 Snow Station Add a weighing rain/snow sensor to a weather station that measures the water equivalent of snow. Add a weighing rain/snow sensor to a weather station that measures the water equivalent of snow. Measure snow depth with an ultrasonic level sensor. Measure snow depth with an ultrasonic level sensor.

21 Base Station Base station software receives data from remote stations. Base station software receives data from remote stations. Checks for data validity Checks for data validity Tests for alarm criteria Tests for alarm criteria Displays data to users Displays data to users Sends data to other hosts for analysis. Sends data to other hosts for analysis. Pages operators when sensor data reaches alarm levels. Pages operators when sensor data reaches alarm levels.

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23 Public Data Viewing on Web Pages Data is exported from the base station to web page servers for viewing by dispatch operators, managers, and the public. Data is exported from the base station to web page servers for viewing by dispatch operators, managers, and the public. Map displays show the gauge locations and readings. Map displays show the gauge locations and readings. Data display is color coded to show critical levels. Data display is color coded to show critical levels. Hydrologic threat scores are computed to simply operator analysis of the data. Hydrologic threat scores are computed to simply operator analysis of the data. Reports organize the data for time analysis. Reports organize the data for time analysis. Plots show data trends over time. Plots show data trends over time.

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28 Web Page Links to Site Displays Overlay site data on top of site photograph. Overlay site data on top of site photograph. Annotate data display to show critical levels Annotate data display to show critical levels Alarm detection pop-up requiring acknowledgement. Alarm detection pop-up requiring acknowledgement.

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30 HydroLynx Systems, Inc. thanks you for the opportunity to make this presentation.


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