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 ...
Earth Sciences
Nov 24, 2023
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1
Research testing new technology to more effectively locate polar bear dens across the Arctic is showing promising results. Researchers from Simon Fraser University and Brigham Young University (BYU), collaborating with Polar ...
Ecology
Oct 18, 2023
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25
With its crushing atmospheric pressure, clouds of sulfuric acid, and searing surface temperature, Venus is an especially challenging place to study. But scientists know that observing its surface can provide key insights ...
Planetary Sciences
Sep 19, 2023
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31
Using an aeronautic remote sensing system, Chinese scientists have obtained effective mountain glacier data during an ongoing airborne-ground science experiment on detecting the condition of Bayi Glacier in Haibei Tibetan ...
Earth Sciences
May 22, 2023
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Glaciers—giant rivers of moving ice—along Antarctica's coastline are flowing faster in the summer because of a combination of melting snow and warmer ocean waters, say researchers.
Earth Sciences
Feb 27, 2023
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112
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 ...
Planetary Sciences
Jul 27, 2022
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13
Riding through Canadian polar bear country in a Tundra Buggy—essentially a monster truck that keeps riders safely distanced from wildlife—a BYU engineering capstone team scoured the landscape with sharp eyes. When they ...
Ecology
May 25, 2022
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38
A new study found that measuring the time it takes for a radar pulse to travel from a satellite to the sea surface and back again can reveal the thickness of river ice and dates when it is safe to travel on ice roads and ...
Earth Sciences
Feb 10, 2022
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With future space exploration in mind, a Cornell-led team of astronomers has published the final maps of Titan's liquid methane rivers and tributaries—as seen by NASA's late Cassini mission—so that may help provide context ...
Space Exploration
Oct 18, 2021
1
162
In the months following the July 5, 2019 magnitude-7.1 earthquake in Ridgecrest, California, seismologists recorded thousands of aftershocks in the region. Surprisingly, none were seen in the Coso geothermal field, an area ...
Earth Sciences
Jul 1, 2021
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12
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.
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