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Flood Risk Management

Stereo and Tri-Stereo satellite imagery and high-resolution Digital Terrain Models (DTMs) are invaluable tools in flood risk management, providing essential data for assessing natural hazards, environmental monitoring, and climate change impacts.

Flood Risk Hazard Assessment and Monitoring

Satellite images can help detect flooded areas during and after flood events. They allow for quick identification and assesment of affected regions and the extent of floodwaters, critical for response and damage assessment. DTMs offer precise elevation data that is crucial for mapping flood-prone areas. By hydrological modeling how water moves across terrain, DTMs help identify low-lying regions more likely to flood, aiding in early warning and planning.

Climate Change – Flood Risk Management

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King Abdulaziz Medical City – Jeddah, Saudi Arabia 

Copyright © Twenty First Century Aerospace Technology Co., Ltd (21AT). Satellite Imaging Corp. All rights reserved.

Flood Risk Assessment and Planning

Integrating DTM data with historical flood patterns from satellite imagery enables detailed flood risk maps. These maps highlight vulnerable infrastructure, residential zones, and ecosystems, allowing planners to assess risks and prioritize protective measures.

DTMs with breaklines are integral to flood modeling. By combining terrain data with hydrological models, planners can simulate flood events and predict water levels under various scenarios. These simulations support the design of effective flood barriers, drainage, and urban planning that minimizes flood impact.

Click on image to view the video.

Copyright © Satellite Imaging Corporation. All rights reserved.

50CM DTM - BJ3N 30cm Tri-Stereo Satellite Image

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50CM DTM - BJ3N 30cm Tri-Stereo Satellite Image with Breaklines

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Detailed imagery is used for flood risk planning with the availability of High-Definition (HD) 15cm imagery produced from 30cm satellite imagery and proprietary AI algorithms developed by MAXAR and AIRBUS.  

Pleaides (HD15cm) Satellite Imagery of Dhuusamareeb, Somalia - World Bank

Copyright © AIRBUS.

WorldView-2 Satellite Image of Nowshera, Pakistan Flood

Copyright © MAXAR Technologies. All rights reserved.

Monitoring Environmental Change and Climate Impact

Over time, satellite images reveal shifts in river courses, coastline erosion, and snow and ice cover changes. Monitoring these trends provides insights into how climate change affects flooding patterns, helping authorities anticipate areas that may experience increased risk.

Satellite images track land cover changes, such as urbanization and deforestation, which can exacerbate flood risks. Loss of vegetation reduces the ground’s ability to absorb water, increasing runoff and flood potential. Monitoring these changes informs sustainable land management practices.

Disaster Response and Recovery

During flood events, satellites continuously monitor the affected areas in real-time, updating flood models and helping responders plan evacuations, allocate resources, and prioritize rescue operations. In the recovery phase, they aid in assessing damages identified by temporal satellite imagery, change detection AI/ML processing algorithms, and restoring impacted ecosystems.

High-resolution satellite imagery and DTM data allow post-flood analysis to evaluate the effectiveness of flood defenses, infrastructure resilience, and recovery efforts, which can improve future flood risk management. Satellite imagery and DTMs support a proactive approach to flood management by enabling accurate risk mapping, real-time response, and long-term planning for climate resilience.

World Bank Urban Flood Risk Handbook: Assessing Risk and Identifying Interventions

The World Bank Urban Flood Risk Handbook is a guide aimed at helping cities and governments to better understand and mitigate urban flood risks. Urban flooding is a critical issue in many parts of the world, intensified by rapid urbanization and climate change, leading to more frequent and severe flooding. The handbook is designed to provide a framework for assessing flood risks in urban areas and offers actionable guidance on how to manage and reduce these risks effectively.

Importance and Impact

The handbook is valuable for urban planners, engineers, policymakers, and community leaders, especially in developing countries where resources. By following this guide, cities can work toward reducing flood vulnerability, protecting lives and property, and building resilience against future climate-related challenges. The World Bank’s approach in this handbook also aligns with its broader goals of poverty reduction and sustainable urban development, emphasizing that flood management is critical for both economic growth and environmental stability.

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FAQ’S

Frequently Asked Questions

How to find Geographic Coordinates in Google maps?

To find geographic coordinates in Google Maps, you can follow these steps:

  1. Open Google Maps in your web browser or on your mobile device.

  2. Search for the location you want to find the geographic coordinates for by entering the address, landmark, or name of the place in the search bar at the top of the page.

  3. Once the location is displayed on the map, right-click (or long-press on mobile) the exact point on the map where you want to find the coordinates. This will open a small menu.

  4. In the menu that appears, click on “What’s here?” or “What’s here? – Coordinates” option. On mobile devices, you may need to tap on the location marker first to reveal the menu options.

  5. A small information box will appear at the bottom of the screen, displaying the latitude and longitude coordinates of the selected point. The coordinates will be shown in decimal degrees format.

  6. You can click on the coordinates in the information box to expand it and see the coordinates in different formats, such as degrees, minutes, and seconds (DMS) or Universal Transverse Mercator (UTM) format.

To create a KML (Keyhole Markup Language) file in Google Earth, you can follow these steps:

  1. Download Google Earth Pro and Open on your computer.

  2. Navigate to the location or area you want to create a KML file for by using the search bar, zooming in/out, and panning on the map.

  3. Customize the view and layers in Google Earth Pro to include the specific data or elements you want to include in your KML file. This can include placemarks, paths, polygons, overlays, images, and more.

  4. Once you have set up the desired view and layers, go to the “Add” menu at the top of the screen and select the type of element you want to add (e.g., placemark, path, polygon, image overlay).

  5. Follow the prompts to add the specific element and provide the necessary information, such as location coordinates, name, description, and any additional properties or styling options.

  6. Repeat the previous step if you want to add more elements to your KML file.

  7. After adding all the desired elements, go to the “File” menu and select “Save Place As.”

  8. In the “Save Place As” dialog box, choose a location on your computer where you want to save the KML file.

  9. Specify the name of the KML file, ensuring it has the .kml extension (e.g., myfile.kmL), you may need to select KML as GoogleEarth defaults to KMZ formats.

  10.  Click the “Save” button to save the KMZ file to the specified location on your computer.

Ordering commercial high-resolution and medium-resolution satellite maps process:

  1. Identify your requirements: Determine the specific needs for the satellite maps, including the desired resolution, geographic coverage, acquisition date, and any additional specifications such as spectral bands or cloud cover constraints.

  2. Contact Us: Reach out to us to inquire about our imaging product and services. Provide us with the details of your requirements, including the area of interest, resolution, and any other specifications.

  3. If there is high urgency for imagery, please let us know that this is a time sensitive project. Any project deadlines should be included with your initial contact.

  4. Request a quote: Ask for a formal quote for the satellite maps you need. The quote should include information such as the cost, delivery timeline, licensing terms, and any additional services like data processing or analysis.

  5. Review the quote: Evaluate the quote provided by us and if needed, we can negotiate the terms, pricing, or any specific requirements that may not be fully covered.

  6. Confirm the order: Once you are satisfied with the quote and have reached an agreement, confirm your order. We will guide you through the necessary steps for payment and delivery.

  7. Receive the satellite maps: After the order is confirmed and payment is processed, you will receive the satellite map data in the specified format. This may include downloading the data from a secure portal or receiving physical media, depending on delivery method.

  8. Utilize the satellite maps: With the satellite maps that you receive, you can utilize it for your intended purposes, such as GIS data, 3D terrain maps, disaster, geospatial data, and other applications as needed.

Satellite map raw files refer to the unprocessed and unedited data captured by satellite sensors. These files contain the raw data received by the satellite sensors, including the reflected or emitted electromagnetic radiation from the Earth’s surface.

Satellite map raw files typically come in specialized formats specific to each satellite sensor or provider. These formats may include formats like GeoTIFF (georeferenced Tagged Image File Format) or ENVI (Environment for Visualizing Images). The raw files preserve the original sensor readings, which can include various spectral bands, radiometric information, and geometric parameters.

Raw files require processing to convert them into usable formats, such as georeferenced images or digital elevation model(DEM). Processing steps may involve radiometric and geometric corrections, atmospheric compensation, calibration, orthorectification, and mosaicking, among others.

Once processed, raw files can provide valuable information for various GIS data applications, including 3D terrain maps, agriculture production maps, vegetation maps, and disaster maps.

To download satellite maps from an FTP (File Transfer Protocol) server, you can follow these general steps:

  1. Obtain the FTP server information: Get the FTP server details from the satellite maps provider or the source you are accessing. This includes the FTP server address, username, password, and potentially the directory path to the imagery files.

  2. Choose an FTP client: Select an FTP client software or application that allows you to connect to the FTP server and perform file transfers. Some popular options include FileZilla, WinSCP, Cyberduck, or the built-in FTP functionality of certain web browsers.

  3. If you are unable to download an FTP client due to software locks, Windows has a built in FTP Protocol that can be accessed by copying the URL of the FTP server in your Windows File Explorer.

  4. Depending on the method to connect to the FTP, you will need credentials including a Username and Password to access these file.

  5. Most FTP clients will allow you to Copy and Paste or Drag and Drop the files from the client window to your local files.

Remember to comply with any terms and conditions associated with the satellite map data, including usage restrictions, licensing agreements, and any attribution requirements specified by the provider.

For any other questions or for a consultation, please contact us.

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