Related topics: earthquake

Animated maps reveal true level of devastation in Ukraine

Two years of war in Ukraine have caused widespread devastation to the country's citizenry, infrastructure and environment, and new research utilizing publicly accessible satellite imagery lays bare the scope of destruction.

Heritage ERS-2 satellite to reenter Earth's atmosphere

Throughout its 16-year working life, the second European Remote Sensing satellite, ERS-2, returned a wealth of information that revolutionized our perspective of our planet and understanding of climate change. As well as ...

A new map shows all above-ground biomass in the Brazilian Amazon

Publication of a new map showing all the above-ground biomass in the Brazilian Amazon is good news in the context of the severe crisis afflicting the world's largest contiguous tropical rainforest. Using airborne laser scanning ...

Using AI to track icebergs

Researchers are using a new AI tool to detect icebergs in the Southern Ocean. This is the first step in being able to track the complete life cycle of most icebergs across Antarctica from satellite data. The study, "Unsupervised ...

ESA makes ground motion data freely accessible

Any movement beneath our feet—from barely perceptible subsidence to the sudden appearance of a sinkhole or a crashing landslide—spells big trouble. Even relatively modest subsidence can weaken buildings and infrastructure ...

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Synthetic aperture radar

Synthetic-aperture radar (SAR) is a form of radar in which multiple radar images are processed to yield higher resolution images than would be possible by conventional means. Either a single antenna mounted on a moving platform (such as an airplane or spacecraft) is used to illuminate a target scene or many low-directivity small stationary antennas are scattered over an area near the target area. The many echo waveforms received at the different antenna positions are post-processed to resolve the target. SAR can only be implemented by moving one or more antennas over relatively immobile targets, by placing multiple stationary antennas over a relatively large area, or combinations thereof. SAR has seen wide applications in remote sensing and mapping.

This text uses material from Wikipedia, licensed under CC BY-SA