Real-time updating in flood forecasting and warning

Thus, the system has the ability to track the wave of a storm event as it moves through a river system. In addition, the tools time-stamp and archive each inundation boundary so that an overall maximum flood extent associated with a given storm event can be mapped. Once a flood inundation boundary is developed, NexFIM tools overlay the flood inundation boundary with existing structure information such as building type, value, and first-floor elevation stored in the databases to identify impacted buildings and assign storm event probabilities.

Estimated damage for each building is then calculated by the tool. Along with individual building depths and damages, the tools calculate rolled-up damage summary statistics for logical categories such as occupancy type, community, or stream. FIMAN is a sophisticated system of integrated technologies, datasets, and tools.

However, one element that is critical to meeting the objectives of the system is the ability to effectively communicate information to emergency managers and the general public. The application site uses responsive design and consistent modeling techniques, which allows it to be efficiently accessed from desktop, laptop, or any mobile device. The site also integrates common GIS base data and geocoding services as well as layers such as live weather radar feeds. The view themes differ in focus and target audience, but both are accessible to all site visitors.

The Gage view is intended for the general public to learn about flood conditions and alerts in an area of interest. An interactive map displays pins showing the gage status and trend of all gages in the state. Users can find gages of interest using their current location, view gages within a search radius, or search by river basin or gage name.

Selecting a gage displays the most recent stage, flow, and predicted risk information. Where available, forecast information from the National Weather Service is also displayed. For example, these tools can show what areas will flood if the gage gets to a certain level. Users can also sign up for automated email notifications when a gage of interest changes flood state. Whereas the Gage view focuses on information at a specific gage of interest, the NexFIM view provides real-time and scenario flood information for an entire river system using the NexFIM computational algorithms.

Using a pull-down list, users can select a river system of interest that has been processed in the FIMAN system. The viewer zooms to the river system and displays an outline distinguishing all the gages included in the selected river system.

If gages in the selected river system are experiencing flooding, seamless flood inundation areas will be depicted in the viewer and will be updated with every new gage reading. Similar to the Gage view, the NexFIM view lets the user view information for a number of scenario storm events such as a year flood event. In addition, the viewer provides flood information for select historic events, such as Hurricane Floyd, that have been processed.

Have a sustainable solution? Submit and showcase it to the world. Submit for free. This website uses cookies to improve your experience. We'll assume you're ok with this, but you can opt-out if you wish. Accept Read More. Necessary Always Enabled. Kalteh AM Improving forecasting accuracy of stream flow time series using least squares support vector machine coupled with data-preprocessing techniques.

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