#sentinel2 — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #sentinel2, aggregated by home.social.
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3D tour using #Sentinel2 imagery from before and after the #Nepal #Tibet glacier collapse/landslide showing a new lake in the valley and the erosion scar. #NepalFloods
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[Перевод] Как найти остров по одной фотографии: геолокация через геометрию и CUDA
Фото островного курорта. Ни EXIF, ни GPS, ни модели камеры – ничего. Нужно назвать курорт, координаты и сторону света, куда смотрела камера. Пытаться ответить на эти вопросы через google lens – значит упустить возможность повеселиться. Поэтому я взялся за задачу с помощью математики и программирования.
https://habr.com/ru/companies/cloud4y/articles/1072778/
#OSINT #геолокация #CUDA #GPU #Python #геометрия #OpenStreetMap #спутниковые_снимки #NDVI #Sentinel2
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🛰️🔥 Le plus grand incendie de forêt que la #Belgique ait connu depuis un siècle a ravagé plus de 3000 hectares dans les Hautes Fagnes.
📷 Satellite #Sentinel2 du 16 août,via @or_bit_eye -
Track #algal_blooms on six popular #Alberta #lakes with this satellite based tool https://algalbloomtracker.ca/
Behind the scenes is #Sentinel2 and an algorithm trained on several years of #CHLA lake samples #earthobservation #cyanoHABs -
Earth Engine tip: use the Sentinel-2 SCL band to mask clouds and shadows before you composite. Garbage pixels in, garbage index out.
#EarthEngine #RemoteSensing #Sentinel2 #Teaching -
Die Siegmündung in Bonn im Zeitraffer: Mai bis Anfang August, im Vergleich der Jahre 2025 und 2026. Die Sentinel-2-Aufnahmen zeigen, wie sich die Trockenheit der letzten Wochen auf unsere Flüsse auswirkt.
Für die Verarbeitung haben wir unser Tool SADASADAM genutzt, das die Daten atmosphärenkorrigiert und in 8-tägigen Zeitfenstern aggregiert.
Mehr zu unserer Arbeit mit Satellitendaten: mundialis.de
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🛰️🌋 1) Image incroyable du satellite #Sentinel2 du programme européen #Copernicus du 11 août de l’#Etna en éruption.
2) La colonne de fumée (dioxyde de soufre) vue par le satellite Sentinel-5 le 15 août.
📷 Via @PlatformAdam -
NDVI = (NIR − Red) / (NIR + Red). Healthy leaves reflect near-infrared hard and drink red light, so the ratio climbs. One line of math, a planet's worth of vegetation.
#RemoteSensing #NDVI #Teaching #Sentinel2 -
Glacial ridges line Björkö in Finland's Kvarken Archipelago.
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The Gendox AI Agent is adapting the SeaScope platform for wildfire monitoring.
These Copernicus Sentinel-2 images show the Porto Germeno wildfire on 31 July 2026 at approximately 09:30 UTC.
We hope everyone is safe. Strength and courage to all those working on the ground.
#Gendox #SeaScope #EarthObservation #WildfireMonitoring #WildfireDetection #Copernicus #Sentinel2 #RemoteSensing #ArtificialIntelligence #PortoGermeno #Greece
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Does urban greenery yield microclimatic cooling? Spatial analysis of Calgary (Summer 2025) shows a non-linear NDVI vs LST response.
🛠 Stack: Google Earth Engine (Landsat 8/9, Sentinel-2) + R (terra, tidyverse).
📊 Key Findings:
🔹 Cooling Deficit (NDVI < 0.34): LST stays trapped at 35–36°C. Heat stress overrides evapotranspiration; saplings & isolated lawns fail to cool.
🔹 Tipping Point (NDVI > 0.34): Cooling begins above 0.34. Dense canopy (NDVI > 0.70) suppresses LST below 28–30°C (6–8°C delta).💡 Takeaway: Urban forestry can't just count saplings. Without threshold canopy density, isolated greenery is decoration, not climate infrastructure.
🔗 Link to the research:
https://www.datastory.org.ua/calgarys-summer-heat-a-2025-satellite-perspective/#RemoteSensing #GIS #RStats #rspatial #terra #tidyverse #GoogleEarthEngine #UrbanForestry #Calgary #YYC #OpenData #GreennessOfCalgary #FOSSGIS #Landsat #Sentinel2
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Visualizacion de los incendios en los ultimos dias (19 al 26 de Julio, 2026) con datos de Sentinel 2 y el script de visualizacion de Pierre Markuse.
https://custom-scripts.sentinel-hub.com/custom-scripts/sentinel-2/markuse_fire/
#Ávila #Sentinel2 #IncendiosForestales -
#Independent:
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Dramatic before and after pictures show devastating impact of Britain’s record-breaking heatwaves
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https://www.independent.co.uk/weather/uk-consecutive-heatwaves-drought-august-weather-climate-met-office-b3020122.html23.7.2026
#England #EO #Erdbeobachtung #GreatBritain #Heatwave #Hitzeweile #Klimakrie #Klimawandel #Satelliten #Sentinel2 #UK
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🌳 Quantifying Calgary’s Microclimatic Imbalance: The Solid-to-Tree Ratio
To evaluate the structural heat load across Calgary's communities, I calculated the ratio of high-thermal artificial surfaces to cooling tree canopy: Solid / (Park + Forest), based on my 2025 satellite land cover model (LULC v6.0).
Why this ratio matters:
🔹 Thermal Stress Indicator: It measures how many square meters of heat-absorbing surfaces (asphalt, concrete, roofs, bare soil) exist for every square meter of tree canopy.
🔹 Spatial Inequality: While mature western neighborhoods maintain ratios between 1.5 and 4, eastern and peripheral zones reach values from 10 to over 50.
🔹 Evidence-Based Planning: It moves the discussion from generic averages to identifying exact spatial boundaries where microclimatic mitigation is most needed.Note: The map uses a logarithmic scale.
#Calgary #YYC #DataScience #GIS #RStats #RemoteSensing #UrbanHeat #DataViz #SpatialAnalysis #MachineLearning #GreennessOfCalgary #FOSSGIS #Sentinel1 #Sentinel2
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Der #Perito-Moreno-Gletscher in #Argentinien galt lange als außergewöhnlich stabil.
Aktuelle #Copernicus-Satelliten-Daten zeigen jedoch einen deutlichen Rückzug der Eisfront in den vergangenen zehn Jahren. Die regelmäßigen Beobachtungen unterstützen die langfristige #Klima-Forschung und das #Umwelt-Monitoring von Gletscher-Regionen weltweit.
#Gletscher #Sentinel2 #environment #climatechange #Erderwärmung #Gletscherschwund
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Students make Groningen one of the youngest cities in the Netherlands.
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Draw an area on a map, pick a date and a spectral index, and see live Sentinel-2 imagery rendered back to you.
That's EO Explorer. The detail I'm proud of: the app imports its NDVI code straight from my eo-monitor pipeline, so the app and the pipeline share one definition of the math and can't drift apart.
Live demo: https://data-science-portfolio-kpnqhpxmfzgwpgwbxkejql.streamlit.app/
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Cork ahead of Ireland’s Presidency of the Council of EU.
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#Earthdata:
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Little Water Left in San Carlos ReservoirOPERA's dynamic surface water extent layer and Landsat images show extremely low water levels in this Arizona reservoir in June 2026.
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https://www.earthdata.nasa.gov/news/worldview-image-archive/little-water-left-san-carlos-reservoir29.6.2026
#Arizona #CoolidgeDam #EO #Erdbeobachtung #Klimakrise #Klimawandel #Landsat #LowWater #NASA #Niedrigwasser #reservoir #SanCarlosReservoir #Sentinel2 #Staudamm #USA #Wasser #Water
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Huzzah! The remarkable and rather expensive, but totally worth it, transformation of the Washington DC Reflecting Pool from long green lake to long slightly greener lake is complete! As seen by #Sentinel2 from 28 February to 13 June #ReflectingPool #Algae
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Auf der Insel Yos Sudarso in Indonesien zeigt der Vergleich von #Copernicus #Sentinel2-Aufnahmen aus den Jahren 2018 und 2026 eine deutlich dichtere Vegetation in Küstengebieten.
Die Entwicklung steht im Einklang mit aktuellen Erkenntnissen, wonach sich #Mangroven in vielen Regionen durch geringere #Entwaldung und Wiederherstellungsmaßnahmen erholen.
#Indonesien #Biodiversität #Naturschutz #environment #biodiversity
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Mt Aspiring area South Island New Zealand under clear high pressure conditions seen by #Sentinel2 on 9 June 2026 #NewZealand #SouthernAlps
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The criminal destruction of Antelope Reef by China in it's turf war with Vietnam in only a few months. Atoll reefs are getting destroyed shockingly quickly by dredged sand in a stupid fight for territory. Seen by #Sentinel2 #AntelopeReef