#ESA#SLSTR
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bigearthdata.ai
'It makes me feel that we can do a lot about it': ESA official shares striking satellite snap of Europe's record-breaking summer heat waves
->Live Science | More on "European heat waves and satellite data" at BigEarthData.ai | #heat wave #climate
'It makes me feel that we can do a lot about it': ESA official shares striking satellite snap of Europe's record-breaking summer heat waves
This striking satellite snap shows the scorching land and sea surface temperatures that hit Southern Europe during one of the continent's record-breaking heat waves this summer. The image was created using data from the Sea and Land Surface Temperature Radiometer (SLSTR) on board the European Space Agency's (ESA) Sentinel-3B satellite. It was selected for this week's edition of Earth from space by Simonetta Cheli, director of Earth observation programs at ESA and head of the European Space Research Institute (ESRIN) in Frascati, Italy. Live Science recently visited Frascati to see ESRIN's newly operational Space HPC supercomputer and sat down with Cheli for an in-depth discussion about Earth observation. When asked about her favorite satellite image, Cheli highlighted this photo as one that caught her eye this year. In the thermal image, dark reds highlight terrestrial temperatures in excess of 95 degrees Fahrenheit (35 degrees Celsius) across most of Spain and parts of France and Italy, while dark purple spots show highs above 104 F (40 C) across patches of Spain and North Africa. The image also reveals sea surface temperatures spiking across the Mediterranean Sea. (The colors in the image do not represent the same temperatures on land and sea...
www.livescience.com
October 20, 2026 at 1:47 PM
sentinelonline.bsky.social
#Sentinel3 Level-2 Land Surface Temperature NTC (non-time critical) products are now available in #CopernicusEU Browser and the Sentinel Hub API.

Read the full article: sentinels.copernicus.eu/web/sentinel...

#ESA#SLSTR #SentinelOnline
Sentinel-3 Level-2 Land Surface Temperature now available in Copernicus Browser - Sentinel Online
sentinels.copernicus.eu
October 9, 2026 at 7:26 AM
chrononaut.bsky.social
ooooof

(more intel from @CRUDEOIL231 on the bad place, comment in alt)
I looked up Sentinel-3 satellite imagery for cross-validation. ESA also runs the Sentinel-3. While Sentinel-2 is essentially just a single high-res multispectral optical payload (MSI), Sentinel-3 packs a whole suite of sensors; optical (OLCI), precision thermal radiometry (SLSTR), and radar altimetry (SRAL). The spatial resolution gets chopped hard versus Sentinel-2 and the swath is huge, but it's more than sharp enough to flag severe thermal anomalies across open desert scrub. Breaking down the frames. OLCI is the familiar optical sensor. Pulled the OLCI L1B baseline imagery and ran the Highlight Optimized Natural Color processing layer to keep the blown out white pixels from clipping over high-albedo terrain. Then you have SLSTR L1B—provides the baseline thermal infrared and optical observations. It is used to verify sea/land surface radiant temperatures and active fire pixels. I selected the F1 Brightness Temperature layer, a dedicated mid-wave/thermal infrared band designed specifically for active fires (such as wildfires and gas flares). The delta between yesterday's pass and today is night and day. Again: zero interest in feeding the toxic bull/bear crossfire. Just sharing OSINT observations through open source feeds.
September 10, 2026 at 10:05 PM
58deg.bsky.social
It's not presented in a war that's so useful for OSINT, but ESA provides fire detection data from Sentinel 3A.
s3wfa.esa.int
Sentinel-3 World Fire Atlas
The Sentinel-3 World Fire Atlas has been developed by the European Space Agency processing the Sentinel-3A SLSTR Level 1b data from May 2016 to identify and generate statistics of fire and high temper...
s3wfa.esa.int
October 1, 2025 at 7:29 PM
snowman4.bsky.social
Not really an alert or firefighting system, but ESA uses the Sentinel 3 satellite for global wild fire detection and monitoring: s3wfa.esa.int
Sentinel-3 World Fire Atlas
The Sentinel-3 World Fire Atlas has been developed by the European Space Agency processing the Sentinel-3A SLSTR Level 1b data from May 2016 to identify and generate statistics of fire and high temper...
s3wfa.esa.int
January 13, 2025 at 3:56 PM
esa-snap.bsky.social
🚀SNAP 12 is here! 🌍
Marking 10 years of ESA's Sentinel App Platform with powerful new features:
🛰️Sentinel-1C support
⚙️JDK 21
🌐ETAD: smarter SLCs, interferograms & auto-download
🌍REACTIV, InSAR, OLCI/SLSTR
📦New vector tools
👉 step.esa.int/main/snap-12...
#EO #RemoteSensing #SentinelData #ESA #SNAP
May 8, 2025 at 12:14 PM
esaclimate.bsky.social
Combine climate data sources like never before to gain deeper insights! New example applications show how Climate Change Initiative data integrates with data from the Copernicus Dataspace Ecosystem. Find out more: github.com/esa-cci/ect-...
Four-panel visual: top row Sentinel‑3 SLSTR surface directional reflectances in blue; bottom row derived land surface temperatures in yellow–green.
March 9, 2026 at 8:42 AM
sentinelonline.bsky.social
The #Sentinel3 constellation orbits Earth at 814.5 km, monitoring oceans, land, ice and atmosphere on behalf of the EU #Copernicus programme.

🔗 sentinels.copernicus.eu/web/success-stories/-/the-earth-s-high-altitude-health-monitor-understanding-the-sentinel-3-mission

#EarthObservation #OpenData
Infographic showing a close-up of the Sentinel-3 satellite body with solar panels visible against a dark background. Text provides a mission overview: Sentinel-3 is a European multi-instrument mission developed for the Copernicus Programme to systematically monitor the oceans, land, ice and atmosphere, operated by ESA and EUMETSAT. Main mission objectives and applications listed include ocean forecasting, sea-surface topography, ocean colour, sea and land surface temperature, marine ecosystems, inland waters, land monitoring, sea ice monitoring, wildfire and thermal anomaly detection, and climate monitoring. Infographic showing two Sentinel-3 satellites during separation against a dark background, with an Earth observation image strip visible below. Text presents the Sentinel-3 launch timeline: Sentinel-3A launched 16 February 2016, Sentinel-3B launched 25 April 2018, Sentinel-3C scheduled for 2026, and Sentinel-3D planned. Infographic showing the Sentinel-3 satellite and a rocket stage against a dark background with Earth visible below. Text lists orbital parameters: sun-synchronous, near-polar orbit at 814.5 km altitude, inclination of 98.65 degrees, 27-day repeat cycle, 385 orbits per cycle, and a revisit time of less than two days for OLCI and less than one day for SLSTR at the equator using the two-satellite constellation. Infographic showing the Sentinel-3 satellite against a dark background with Earth visible at the bottom left. Text lists three onboard instruments: OLCI (Ocean and Land Colour Instrument), an imaging spectrometer with 21 spectral bands, 300 m resolution and 1270 km swath; SLSTR (Sea and Land Surface Temperature Radiometer), a dual-view scanning radiometer measuring sea and land surface temperature with a 740 km dual-view swath and 1400 km single-view swath; and SRAL (Synthetic Aperture Radar Altimeter), a radar altimeter measuring sea-surface height, waves and topography, operating in 100% SAR mode.
April 15, 2026 at 10:49 AM