How lidar measures the cost of climate disasters
This newsletter discusses how lidar technology is being used to assess the impact of climate disasters, specifically focusing on the aftermath of wildfires in Los Angeles County in January 2025. By comparing pre- and post-disaster lidar scans, researchers can visualize and quantify the extent of damage and predict subsequent environmental risks like landslides.
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Lidar Technology Application: Lidar is enabling precise measurement of landscape changes after disasters, surpassing satellite imagery in detail.
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Quantifying Disaster Impact: The technology allows for visualization and quantification of damage, including structural loss and vegetation changes.
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Predictive Capabilities: Lidar data helps scientists predict secondary disasters like landslides and mudflows following wildfires.
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Cost Assessment: The use of lidar underscores its importance in assessing the economic and environmental costs of climate-related events.
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The "diffing" of lidar data (comparing before-and-after snapshots) provides crucial insights into subtle consequences of disasters, which aids in understanding fault-line shifts, volcanic eruptions, and mudslides.
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Visualizations derived from lidar data are proving more effective than satellite imagery in demonstrating the scale of devastation.
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The long-term value of lidar data is highlighted, showing its importance in preparing for future climate-related disasters.
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Potential budget cuts to scientific research pose a threat to crucial lidar data collection projects.