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Sentinel Online

@sentinelonline.bsky.social

Official profile of Sentinel Online, part of Copernicus, the European Union’s Earth Observation programme, and developed in partnership with @esa.int

180 Posts126 Follower 9 Folgt

Sentinel Online @sentinelonline.bsky.social · 2d ago

In late July 2026, #Copernicus Emergency Management Service was activated for #wildfires in Spain, Portugal, France and Greece. Across all of them, Sentinel-3 provides a repeatable view of the thermal signal from active fires. 🔗 sentinels.copernicus.eu/web/success-... #ESA #SentinelOnline

Sentinel Online @sentinelonline.bsky.social · last wk.

Stefan Mühlbaer from #EOMAP uses #Sentinel2 optical imagery to map water depth and water quality: chlorophyll, turbidity, surface temperature and visibility. "Water bodies are getting warmer. They are lacking oxygen, and we see already a trend to enhanced algae bloom activity.” #VoicesofSentinel

Sentinel Online @sentinelonline.bsky.social · last wk.

#Sentinel-3 #OLCI L2 Land reprocessing (Collection 003). Updated BC003 coverage: S3A 6 Apr 2016 to 4 Nov 2024 (Cycle 118), S3B 9 May 2018 to 18 Oct 2024 (Cycle 98). 🔗 sentinels.copernicus.eu/web/sentinel... #CopernicusEU #SentinelOnline #ESA

Completion of Sentinel-3 OLCI Level-2 Land Reprocessing Campaign (Collection 003) - Sentinel Online

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Sentinel Online @sentinelonline.bsky.social · last wk.

Spain declared a national emergency on 23 July as large #wildfires burn simultaneously across the country. Over 100,000 people evacuated or confined. #CopernicusEU #EUSpace #Sentinel2 #Sentinel3 #CopernicusEMS #RapidMapping #Wildfires #EarthObservation

Annotated Copernicus satellite image titled "Multiple wildfires prompt national emergency in Spain", dated 26 July 2026. The main Sentinel-3 view shows central and eastern Spain in natural colour, with pale grey smoke plumes streaming south-east from a fire labelled #IFSierraOeste, west of Madrid, and a second plume from #IFVallDUixó near the Mediterranean coast. An inset Sentinel-2 close-up on the left shows the Sierra Oeste fire in detail: bright orange active fire lines along the perimeter, a large dark purple burn scar, and smoke drifting over the villages of Navas del Rey and Pelayos de la Presa. Credit lines read European Union, Copernicus Sentinel-2 and Sentinel-3 imagery.

Satellite image of a large wildfire in Almería province, Andalusia. A dark brown-black burn scar covers hilly terrain in the centre of the frame, edged by bright orange active fire fronts along its northern and southern flanks. Blue-grey smoke drifts north-east over the burnt area. Green and tan farmland, roads and scattered settlements surround the fire, with a river valley and a major road running along its southern edge.

Sentinel Online @sentinelonline.bsky.social · 2w ago

#Sentinel-2 mission will conduct a new special night-time acquisition campaign to collect Level-1B images during the ascending part of the orbit. 🔗 sentinels.copernicus.eu/web/sentinel... #SentinelOnline #ESA

Second Sentinel-2 Nighttime Imaging Campaign - Sentinel Online

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Sentinel Online @sentinelonline.bsky.social · 2w ago

#CopernicusEU #Sentinel-5P measured NO₂ over 5,435 cities, every day, to the same standard everywhere on Earth. A clear trend emerged in 1,400 of them. In 79%, NO₂ fell. Overlaid on GDP data: around 80% of those cities grew richer while cutting pollution. 🔗 sentinels.copernicus.eu/web/success-...

Global map of median tropospheric nitrogen dioxide measured by Copernicus Sentinel-5P from 2019 to 2024. The strongest concentrations appear over eastern China, northern India, western Europe and the eastern United States. Colour scale runs from 0 to 100 µmol per square metre. Credit: Hassani et al., Environmental Research Letters (2026), licensed under CC BY 4.0.

Text slide on a dark blue background with European Union, Copernicus, ESA and Sentinel Online logos. It reads: "Why is NO₂ the fingerprint of fossil fuels? Short-lived, so it stays where it's emitted. Mainly from transport, power and industry. Researchers at NILU stripped out weather effects to reveal the real emission trends."

World map classifying cities by joint change in nitrogen dioxide and GDP per capita from 2019 to 2024. Green marks cities that became cleaner and richer, brown dirtier and richer, grey cleaner and poorer, red dirtier and poorer. Green dominates across China, Europe and North America. Credit: Hassani et al., Nature Cities (2026), licensed under CC BY 4.0.

Text slide on a dark blue background with European Union, Copernicus, ESA and Sentinel Online logos. It reads: "Growth with cleaner air is real, and now measurable. Around 80% of cities with clear trends grew richer while cutting pollution. For regions with sparse ground monitoring, Sentinel-5P offers a consistent way to benchmark progress and test clean air policies." A green button below reads "Read the full success story at sentinels.copernicus.eu".

Sentinel Online @sentinelonline.bsky.social · 3w ago

Nicolás Martín, Director of Users, Services and Applications at the #SpanishSpaceAgency ( #AgenciaEspacialEspañola ), discusses the role of #CopernicusEU for institutional users and Spain's forthcoming Copernicus Collaborative Ground Segment. Watch the full interview 🎬 #VoicesofSentinel

Sentinel Online @sentinelonline.bsky.social · 4w ago

How is AI changing the way we observe our planet? 🛰️ #SentiWiki now has a dedicated section on #ArtificialIntelligence for #EarthObservation: learning material, hands-on AI services, and real success stories using #CopernicusEU #Sentinel data. sentiwiki.copernicus.eu/web/artifici...

Sentinel Online @sentinelonline.bsky.social · last mo.

After twelve years in orbit, #CopernicusEU #Sentinel-1A reached the end of its operational life on 29 June 2026. 🔗 sentinels.copernicus.eu/web/success-... #SentinelOnline #ESA #EarthObservation

Sentinel Online @sentinelonline.bsky.social · last mo.

#VoicesofSentinel, live from #CommEO in Seville. Ludovic Augé of #Dataionics on the EO data problem: "We're in a kind of industry where it's a kind of data push." 🔗 Watch the full interview to hear how Dataionics is tackling this challenge #SentinelOnline #ESA #CopernicusEU #EarthObservation

Sentinel Online @sentinelonline.bsky.social · last mo.

#SentinelOnline keeps growing as a hub for #CopernicusEU #EarthObservation knowledge. 🛰️ Vs early 2025: 🔹 ~10,800 avg monthly visits, up 22% 🔹 Success Stories: ~2,500 avg monthly visits, over 3x more Thank you to our growing community for your support. Explore the latest: sentinels.copernicus.eu

Sentinel Online @sentinelonline.bsky.social · last mo.

#Sentinel-1C Orbit Update (23/06/2026): Destination reached. The satellite has successfully arrived at its final location, marking 100% completion and securing the long-term, 6-day nominal revisit frequency with #Sentinel-1D. #Copernicus #ESA

An infographic titled "SENTINEL-1C ORBIT REPOSITIONING" from Sentinel Online, the European Union, Copernicus, and ESA. The background is dark green with orbital graphics. On the left, a 3D globe illustration depicts the orbital paths and relative positions of satellites Sentinel-1A, Sentinel-1D, and Sentinel-1C. The main graphic on the right shows a curved arc illustrating the completed orbital drift timeline between June 9, 2026 (0
∘
), and June 23, 2026 (−30
∘
). An orange marker rests precisely at the target finish line of −30
∘
. Below, text reads "23/06/2026 - Target node reached" alongside a progress bar at 100%. Fine print explains that Sentinel-1C has successfully arrived at its final location, securing the long-term, 6-day nominal revisit frequency with respect to Sentinel-1D ground tracks.

Sentinel Online @sentinelonline.bsky.social · last mo.

#Sentinel-1C Orbit Update (22/06/2026): The satellite is now 93% through its orbital drift, currently tracking at 27.9°. This final shift secures a 6-day separation from Sentinel-1D. Arrival at the target node is expected tomorrow, June 23, with operations resuming June 24. #Copernicus #ESA

Sentinel Online @sentinelonline.bsky.social · 2mo ago

#Sentinel-1C Orbit Update (19/06/2026): The satellite has crossed the 70% mark, now at 71% completion of its drift to the new orbit node (tracking at 21.4°). This shift ensures a 6-day separation from #Sentinel-1D. Target arrival: June 23. #Copernicus #ESA

Sentinel Online @sentinelonline.bsky.social · 2mo ago

#Sentinel-1C orbit update (18/06/2026): The satellite is now 64% through its drift to the new orbit node, tracking at 19.3°. This shift establishes a 6-day separation from #Sentinel-1D. Target arrival remains June 23, with nominal operations resuming June 24. #Copernicus #ESA

Sentinel Online @sentinelonline.bsky.social · 2mo ago

#Sentinel-1C Orbit Update (17/06/2026): The satellite is 57% through its drift to a new orbit node, tracking at 17.1°. The move changes its separation from #Sentinel-1D from 1 day to 6 days. Target arrival is June 23, with operations resuming June 24. #CopernicusEU #ESA #Sentinel-1 #SentinelOnline

Sentinel Online @sentinelonline.bsky.social · 2mo ago

Three days of insight, innovation, and high-level networking in Seville. #CommEO2026 brought together the global #EarthObservation ecosystem to foster new partnerships, boost commercial growth, and explore cutting-edge solutions 🔗 sentinels.copernicus.eu/web/success-... #ESA #SentinelOnline

A photograph from a panel discussion at a conference stage with a large blue digital backdrop displaying "THE 3rd EO COMMERCIALISATION FORUM DETAILED PROGRAMME". A teal overlay box in the center reads "THE 3rd ESA EO COMMERCIALISATION FORUM" and "12-14 May 2026 | Seville, Spain". Logos for the Programme of the European Union, Copernicus, ESA, and Sentinel Online are displayed along the top border.

A graphic slide with a dark blue background featuring centered white text that outlines the event's core topics. Key words such as Seville, Earth Observation, commercialisation, AI, cloud infrastructure, and operational analytics are highlighted in bold. Institutional branding logos run across the top banner.

A graphic slide with a vibrant teal-green gradient background and a subtle globe silhouette. Central white text reads, "Explore how operational EO data is transforming into decision-ready intelligence and shaping the future of global industries." Below this, a dark teal button prompts users to visit "SENTINELS.COPERNICUS.EU". Institutional logos are arranged along the top edge.

Sentinel Online @sentinelonline.bsky.social · 2mo ago

New calibration stations deployed on the East Antarctic plateau provide Fiducial Reference Measurements to validate #CopernicusEU #Sentinel3 land ice altimetry. 🔗 sentinels.copernicus.eu/web/success-...

Sentinel Online @sentinelonline.bsky.social · 2mo ago

"Combining Earth observation data with in-situ data is the key." For our #VoicesofSentinels series, Karl Hamilton (@eea.europa.eu ) shares his insight on EO, continuity of service and the new missions ahead. #CopernicusEU #Sentinels #ESA

Sentinel Online @sentinelonline.bsky.social · 2mo ago

We are pleased to announce the publication of the December 2025 #Sentinel-2 night-time dataset, now available through the #CopernicusDataSpaceEcosystem #STAC catalog. 🔗 Explore the dataset: browser.stac.dataspace.copernicus.eu/collections/... 🔗 News release: sentinels.copernicus.eu/web/sentinel...

Copernicus Data Space Ecosystem (CDSE) - STAC API

browser.stac.dataspace.copernicus.eu

Sentinel Online @sentinelonline.bsky.social · 2mo ago

In the latest #VoicesofSentinel interview, Candela Sancho, CEO & Co-Founder of #Detektia, challenges a major misconception about satellite data. More than simple imagery, this high-precision instrument translates invisible ground movements into actionable safety data. #ESA #CopernicusEU

Sentinel Online @sentinelonline.bsky.social · 2mo ago

Two neighborhoods in the same city can breathe completely different air. #SentinelOnline Ambassador Cesar Ivan Alvarez (University of Augsburg) breaks down how we are combining #EarthObservation data with #AI to predict local air pollution in near real-time. #ESA #CopernicusEU #ClimateAction

Sentinel Online @sentinelonline.bsky.social · 2mo ago

With the consecutive successful launches of #CopernicusEU #Sentinel-1C in December 2024 and #Sentinel-1D in November 2025, the replenishment of the first-generation satellites is nearly complete. 🔗 Explore the full official announcement and timeline: sentinels.copernicus.eu/web/sentinel...

Sentinel-1 orbital reconfiguration dates - Sentinel Online

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Sentinel Online @sentinelonline.bsky.social · 2mo ago

A #CopernicusEU #Sentinel-2 image documents a spring phytoplankton bloom in the North Sea. Increased sunlight and vertical mixing transport deep-water nutrients to the surface, triggering rapid primary production. Credit: contains modified Copernicus Sentinel data (2026), processed by #ESA

Sentinel Online @sentinelonline.bsky.social · 3mo ago

At the #SpaceEconomySummitEurope2026, Rachel McDonnell shares how @iwmi.bsky.social uses #Sentinel data to build climate resilience and manage vital water systems. ↘️ Watch the full interview to see how satellite insights are transforming water management. #VoicesofSentinel #ESA #CopernicusEU

Sentinel Online @sentinelonline.bsky.social · 3mo ago

The 9th #Sentinel-3 Validation Team Meeting concluded at #ESA-ESRIN in Frascati, bringing together 156 experts from across the #Copernicus ecosystem to assess data quality and prepare for the launch of Sentinel-3C later this year. 🔗 sentinels.copernicus.eu/web/success-... #ESA #EUMETSAT

Event banner for the 9th Sentinel-3 Validation Team Meeting. Background shows a close-up of the Sentinel-3 satellite with large solar panels against a deep blue sky. Two teal text boxes read: "9th Sentinel-3 Validation Team Meeting" with the subtitle "ESA-ESRIN · 30 March – 1 April 2026." Logos of the European Union, Copernicus, ESA, and Sentinel Online are displayed at the top.

Slide featuring a group photograph of approximately 156 participants at the 9th Sentinel-3 Validation Team Meeting, gathered in a conference hall at ESA-ESRIN, Frascati. The main screen displays the meeting title slide. Above the photo, text highlights the roles of ESA, EUMETSAT, the European Commission, and the Copernicus Programme. Logos of the European Union, Copernicus, ESA, and Sentinel Online appear at the top.

Slide with an aerial ocean background viewed through an aircraft window, showing a deep blue sea with subtle light reflections. A teal banner reads: "A mystery photo from a plane window." followed by a grey box: "Can Sentinel-3 solve it?" Body text describes a scientific challenge in which participants used Sentinel-3 data to identify a swirling turquoise bloom.

Closing slide with a teal background featuring a subtle leaf pattern. Text reads: "Read the full article and discover how Sentinel satellites are transforming the way we understand and protect our planet. Visit SENTINELS.COPERNICUS.EU to explore real-world success stories of Sentinel data in action." The URL is displayed in a dark navy button. Logos of the European Union, Copernicus, ESA, and Sentinel Online appear at the top.

Sentinel Online @sentinelonline.bsky.social · 3mo ago

The #SpaceEconomy isn't just about data, it's about what we do with it. At the #SpaceEconomySummitEurope2026 in Lisbon, the conversation kept coming back to one thing: turning #SpaceData into real-world impact: in agriculture, water, cities, and beyond. 🔗 sentinels.copernicus.eu/web/success-...

Sentinel Online @sentinelonline.bsky.social · 3mo ago

"Knowledge is power, and if we don't have access to data, we don't have access to knowledge." 🎬 Watch the full interview for more insights on how #Sentinel data is shaping the future of #EarthObservation and share your thoughts in the comments #SentinelOnline #ESA #VoiceOfSentinel #CopernicusEU

Sentinel Online @sentinelonline.bsky.social · 3mo ago

Scientists from Kunming University of Science and Technology in China used #Sentinel1 to monitor waste slopes in Yunnan. Using radar, they were able to identify ground movements at a millimeter scale to find instability hotspots before they fail. 🔗 sentinels.copernicus.eu/web/success-...

A graphic with a teal headline box reading "Sentinel-1 helps keep watch over mining waste slopes in China" overlaid on an aerial view of a terraced open-pit mine. The text below describes the dangers of landslides in mining and the limitations of traditional ground monitoring. Logos for the EU, Copernicus, ESA, and Sentinel Online are in the corners.

A digital illustration of the Sentinel-1 satellite orbiting Earth against a dark blue space background. Text overlaid on the image explains how the satellite uses radar technology to detect millimetre-scale ground movements from 700km above, providing 24/7 monitoring regardless of weather.

A slide on a dark blue background featuring a paragraph of text. It highlights that a research team from Kunming University of Science and Technology used multi-temporal InSAR techniques at a tailings facility in Tengchong, Yunnan province. The text notes that the project serves as a global blueprint for safety and sustainability.

A concluding slide on a dark blue background with a prominent teal button in the center displaying the URL "sentinels.copernicus.eu." Above and below the button, text invites readers to explore more real-world success stories of Sentinel data in action.

Sentinel Online @sentinelonline.bsky.social · 3mo ago

New #Sentinel-3 Altimetry demonstration data products added to #CopernicusDataSpaceEcosystem 🔗 dataspace.copernicus.eu/news/2026-4-... #ESA #SentinelOnline #CDSE #CopernicusEU

New Sentinel-3 altimetry non-operational demonstration data products for Land Ice and Lakes & Reservoirs

Copernicus Data Space Ecosystem - Europe's eyes on Earth

dataspace.copernicus.eu