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#earthobservation

2 posts2 participants0 posts today
Public
CosmicRami

A while back (around seven months ago) I posted an image of ISS (first image), but captured FROM ABOVE (higher orbit). This is the work of Aussie company HEO!

This type of work is really fascinating as things (like satellites) are all moving at high velocities up there (28,000 km/h) - so other things (like other satellites or space stations) zip past quickly. You would then need to 'de-zip' the object to make a crisp clear image.

Well, they've done it again.

This time, imaging the Chinese Space Station (second image) from a distance of 83 kilometres (resolution of 0.17 m/px) 🤯

This is really cool stuff. I promise.

📸 BlackSky / HEO

grainy but detailed image of the international space station, showing its large solar panels and different modules. Several spacecraft attached to the station are also annotated.
The Chinese Space Stations, showing extended modules and two long arms of solar panels (four rows in total). The image is captured from a BlackSky satellite in a higher orbit.
#Space#EarthObservation#SpaceStation
Public
💧🌏 Greg Cocks

Glacial Lake Mapping Using Remote Sensing Geo-Foundation Model
--
doi.org/10.1016/j.jag.2025.104 <-- shared paper
--
HIGHLIGHTS:
• Proposed U-ViT model based on Prithvi GFM for multi-sensor glacial lake mapping.
• Achieved an F1 score of 0.894 on Sentinel-1&2, surpassing CNNs scoring below 0.8.
• Maintains strong performance with 50% less training data, proving efficiency.
• Excels in detecting small lakes (<0.01km²) and handling clouds and complex terrains..."
#GIS #spatial #mapping #glaciallake #GeospatialFoundationModel #satellite #Sentinel #GaoFen #remotesensing #earthobservation #model #modeling #climatechange #glacial #glacier #melt #melting #UViT #deepleanring #AI #framework #performance #metrics #opensource

phot - glacier with glacial lake, Karakoram mountain range
Public
Christopher Kyba

For 12 months last year, my colleagues and I worked on a Mission Description Document for a hypothetical future nighttime lights satellite mission. We were funded by #ESA as part of the #NEOMI program.

We've just now published the document, as well as our three Task Reports that provide the justification for the numbers in the MDD. Check it out! doi.org/10.48440/GFZ.B103-2405

Big thanks to ESA for the opportunity and letting us publish it openly.

Screen shot from the title page with authors and title "Night Watch Mission Description Document".
#EarthObservation#RemoteSensing#LightPollution
Public
O(SINT) Positive

@Bellingcat latest project showcases the power of crowdsourcing satellite imagery requests!

They tasked satellites based on community input. Here's what they found:

🔹 Mauritius: Expanding Indian Air Force base on Agaléga island

🔹 Nagorno-Karabakh: Ongoing demolition and construction in contested region

🔹 Sudan: Evidence of conflict and flooding in Sennar and Al Fashir

🔹 DRC: Growing refugee camps near Goma and expanding coltan mines

🔹 North Korea: Updated view of Kwan-li-so 25 political prison camp

🔹 Myanmar: Illegal gold mining expansion in Homalin border region

🔹 Syria: Changes in Al Hawl refugee/detention camp

This collaboration demonstrates the value of open-source investigations and community engagement in uncovering global developments.

bellingcat.com/resources/2024/

bellingcat · From Mauritius to Sudan, You Told Us Where To Look. Here Are the Results - bellingcatSatellite imagery is increasingly used by open source researchers to analyse conflict,natural disasters, mining activities and even construction work. With the help of Planet Labs PBC and Umbra Space, Bellingcat can take a snapshot of anywhere in the world by “tasking” their satellites to take an image at up to 25-centimetre resolution. Bellingcat asked you, […]
#OSINT#Bellingcat#remotesensing
Public *
somewheresouth

#introduction post

Hi, I'm Bex Dunn, an Earth Observation Scientist working with Australia’s free and open #satellite data and #DigitalEarth #Australia with the #OpenDatacube opendatacube.org/

Work interests include: #wetlands, #water, #python #programming, #DataScience, #RemoteSensing, #EarthObservation, #foss, #ScienceEngagement and innovation. I'm a #LadyOfLandsat.

I also like #SpeculativeFiction, #science, #OpenWaterSwimming, #kayaking, #dancing, #sailing, #PowerLifting, #MicroPython, #MicroElectronics, #WoodWorking, #FixingThings, languages, #music, #history, #books, #radio, #cooking, #drawing, #art, #coffee, #dancing, #engineering .

Thanks for welcoming me to mastodon, I'm really excited to be here.

Open Data CubeOpen Data Cube | Open SourceAn Open Source Geospatial Data Management & Analysis Platform
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