USGS

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채널 • 3개의 프로그램

과학

과학

격주 업데이트
과학

과학

2022. 03. 14.
과학

과학

2024. 02. 23.

2025. 08. 29.

Eyes on Earth Episode 137 – Landsat Takes Yellowstone’s Temperature

The Yellowstone National Park area has more than 10,000 thermal features. And while Old Faithful is a pretty predictable geyser, some thermal features can change quite a bit. New ones can even pop up! Remote sensing provides a tool for monitoring them—especially the thermal infrared sensors (TIRS) on Landsat 8 and Landsat 9 satellites. In this episode of Eyes on Earth, R. Greg Vaughan, the remote sensing lead for the Yellowstone Volcano Observatory, describes what causes the thermal features and how he uses Landsat and other remote sensing data to track their locations and estimate their temperatures. Then Terry Sohl, the Integrated Science and Applications Branch chief at USGS EROS, describes a couple of other important uses of Landsat thermal data.

2025. 08. 29.

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26분
2025. 02. 20.

Eyes on Earth Episode 132 - Moving Forward with AI at EROS

Eyes on Earth tackles artificial intelligence (AI) in a 2-part episode. AI is quickly becoming a necessary part of geospatial work at EROS, helping us efficiently do science to better manage our world. In Part 1, we talked about AI’s current and upcoming impact on our work at EROS and clarified some of the AI jargon. The successful use of AI to make NLCD an annual product was a key example. In Part 2, we discuss another potential application of AI—keeping Landsat satellites safe and healthy in orbit. Additionally, guests comment on how readily staff are adapting to using this rapidly evolving technology. They discuss the biggest benefits and challenges we face in using AI. Among the benefits are making EROS data products more accurate and reliable and getting them to the public in a more timely fashion.

2025. 02. 20.

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28분
2025. 02. 20.

Eyes on Earth Episode 131 – Using AI in Geospatial Work

Eyes on Earth tackles artificial intelligence (AI) in a 2-part episode. AI is quickly becoming a necessary part of geospatial work at EROS, helping us efficiently do science to better manage our world. In Part 1, EROS Director Pete Doucette discusses AI and its current and upcoming impact on our work at EROS. To help clarify AI terminology such as machine learning, deep learning, neural networks, transformers, and foundation models, we also talk to scientists who are using AI. And we learn about how AI enabled the National Land Cover Database (NLCD) to become an annual product. Part 2 will discuss one more potential application of AI—keeping Landsat satellites safe and healthy in orbit. We also have all of our guests comment on AI’s challenges and benefits.

2025. 02. 20.

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31분
2021. 09. 07.

Eyes on Earth Episode 58 - Satellites and Cloud Computing

Satellite imagery is everywhere. We see it on TV news and weather coverage, in our Twitter and Facebook feeds, and on our phones’ mapping apps. The data behind that imagery is nothing like a screenshot, though. It’s comprised of tiny packets of data, broken down from huge files and digitally manipulated to resemble the surface of the Earth, a swirling storm system or a map of urban growth. Cloud computing resources can make it easier to work with huge datasets that cover long periods of time, which is why many remote sensing scientists are using it for their analyses. On this episode of Eyes on Earth, we hear from a scientist who used the cloud for a 150-year water use modeling project, and from a data scientist working to help train others to use cloud resources.

2021. 09. 07.

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17분
2020. 09. 21.

Eyes on Earth Episode 34 – Open Training Data

Today, the world is awash in remotely sensed data. Satellites launched by countries and commercial companies circle the planet collecting data every day. Accessing data from multiple agencies and plaforms and turning it into useful analytics can be a daunting and complex endeavor, however. On today's episode of Eyes on Earth, we hear from the founder of the non-profit Radient Earth Foundation, which works to connect the global development community with the remote sensing data and machine leraning tools it needs to tackle social, economic and environmental issues. One major initiative involves opening access to satellite-based training data, such as crop classifications, land cover and the like, and connecting users to cloud computing resources that help users search for trends and changes across space and time.

2020. 09. 21.

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12분
2025. 04. 01.

Eyes on Earth Episode 134 – Data Accuracy: The Calibration and Validation of Landsat

Landsat is the longest-running, continuously operating record of Earth observations, and it’s the gold standard reference point that other civil and commercial satellite programs trust. If a researcher is studying multiple Landsat images of the same spot on Earth, and there is something in those images that suggests a change, that researcher needs to have the confidence that that change is a real change on the landscape and not because of something that changed or degraded in the sensor. Think of it this way. We are using a system to quantify changes on the Earth—we need to make sure the system itself is not changing.

2025. 04. 01.

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25분
2020. 10. 12.

USGS Outstanding in the Field - Not Enough Beaches in Grand Canyon?

In this episode of Outstanding in the Field, we are talking about beaches in a place that most people probably would not think of—the Grand Canyon. USGS scientists at the Southwest Biological Science Center’s Grand Canyon Monitoring and Research Center in Flagstaff, Arizona are looking at how a dam and vegetation are making things difficult for the beaches in Grand Canyon.

2020. 10. 12.

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8분
2025. 05. 12.

Eyes on Earth Episode 135 – Exotic Annual Grasses and Sheep Grazing

Exotic annual grasses, or EAGs, are invasive species. They outcompete native grasses. They are extremely flammable. And they are expanding into higher elevations. Targeted sheep grazing is one way to combat these invasive grasses, manage fire risk, and help restore native sagebrush in western states. The EROS team releases weekly EAG maps during the peak green-up in late April to early June, along with annual phenology maps to show the seasonal timing of the green-up. Dr. Kelly Hopping at Boise State University is using these maps to see whether targeted sheep grazing can help manage EAGs. The maps help researchers work with sheep producers to know when is the best time to move the sheep into those areas so their grazing can do the most good. The sheep then, as a part of the team solving the problem of invasive grasses, get to eat in the field when they might not otherwise have grazing available. Learn more in this episode of Eyes on Earth.

2025. 05. 12.

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31분
2023. 11. 05.

Beryl Spring — Sounds of Yellowstone (ASMR, Sleep, Concentration)

Need time to concentrate or relax? Then listen to the natural sounds of Beryl Spring in Yellowstone National Park, Wyoming. Beryl Spring, in the Gibbon River valley south of Artist's Paintpots, is a complex plumbing system in Yellowstone National Park with a strongly and constantly boiling hot spring pool, and a powerful fumarole just behind the pool. If you're looking for the video, check out Beryl Spring on the USGS YouTube channel.

2023. 11. 05.

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2024. 12. 09.

Eyes on Earth Episode 129 – What Happens During a Landsat Pass?

In this episode of Eyes on Earth, we talk to ground station technicians to find out how Landsat satellite data gets from the spacecraft to EROS and then to the archive. We see what it’s like in EROS’s Landsat operations room and what the technicians do before, during, and after a Landsat pass. The task of making sure those bits of data make their way to the archive so it can be used for land change science occurs for them several times a day. As routine as it might be sometimes, they are a small but important part of a large mission that is documenting global land change.

2024. 12. 09.

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29분

At the USGS, we monitor, assess, map, and conduct targeted scientific research so that policymakers and the public have the understanding they need to address complex environmental, natural resource, and public safety issues.

웹사이트

USGS

인기 프로그램

Eyes on Earth Episode 137 – Landsat Takes Yellowstone’s Temperature

Eyes on Earth Episode 132 - Moving Forward with AI at EROS

Eyes on Earth Episode 131 – Using AI in Geospatial Work

Eyes on Earth Episode 58 - Satellites and Cloud Computing

Eyes on Earth Episode 34 – Open Training Data

Eyes on Earth Episode 134 – Data Accuracy: The Calibration and Validation of Landsat

USGS Outstanding in the Field - Not Enough Beaches in Grand Canyon?

Eyes on Earth Episode 135 – Exotic Annual Grasses and Sheep Grazing

Beryl Spring — Sounds of Yellowstone (ASMR, Sleep, Concentration)

Eyes on Earth Episode 129 – What Happens During a Landsat Pass?

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