Ragnar Heiðar Þrastarson
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ragnarheidar.bsky.social
Ragnar Heiðar Þrastarson
@ragnarheidar.bsky.social
Mapmaker, mountaineer and GIS Coordinator of the Icelandic Met Office. Open Source Geospatial all the way!

Currently sponsoring:
QGIS | OSGeo | Even Rouault
Before and after #flood
A pair of #Sentinel2 satellite images acquired on the 20th of August and 8th of September showing the lake where a glacial outburst flood aka #GLOF aka #Jökulhlaup occurred at the margin of #Langjökull glacier.
Check previous post for a short video from the field.
September 13, 2025 at 3:58 PM
Throughout #Iceland the Icelandic Met Office operates small web cameras. These are co-located with other equipment like #GNSS and #Seismic stations. They are our eyes in the field. Some capture stunning #nofilter 24h time-lapse like this one looking West towards our old friend #Eyjafjallajokull
September 5, 2025 at 7:42 PM
In May #Iceland was hit by a significant #heatwave

Several stations exceeded 20°C for 10 consecutive days 🔥

New record for maximum May temperature was set on the 15th, 26.6°C 🌡️

This is #EUMETSAT #MTG satellite images for those 10 days at 10 min interval (geo color image) 🛰️

More info in comment👇🏻
May 29, 2025 at 10:04 PM
Very excited to announce early public beta of our new website at The Icelandic Met Office. @maptiler.bsky.social plays a key role in delivering maps for the new site. The weather charts use their Engine + Cloud + Weather SDK with the front-end handled by our friends at #Origo -> gottvedur.is
February 8, 2025 at 3:45 PM
May annual earthquake map 🎆

Iceland is situated on the Mid Atlantic Ridge making it a very volcanically active. The ridge cuts the island in half from SW to the NE, slowly spreading it a part. Here are all the ~30000 earthquakes that have been verified and checked by the Icelandic Met Office staff
December 31, 2024 at 2:17 PM