Every September, I test my 2021 statistical prediction against summer temperatures at De Bilt. Since 1976, the station shows a tight trend of +0.034°C/year. In terms of equivalent geographical displacement, the Dutch summer has effectively migrated south to Central France over this period. 🇳🇱➡️🇫🇷 #KNMI

Picture on the left (Credit: 📷 Guoxiong Zheng) taken onsite. The image on the right shows a Copernicus Sentinel-1 (Radar) difference before and after the Central Nepal flood, draped over Shuttle Radar Tomography Mission (SRTM) topography and rendered as a 3D map in QGIS.

This comparison of today's Sentinel-1 satellite data with data recorded before the dramatic Tibet-Nepal flood shows the changes in the likely source area. In the coming days, we can expect InSAR-based estimates of the volumes of displaced rock and ice.

This is an excellent podcast series where often multiple scientists are interviewed on a topic 🧪 www.pnas.org/about/scienc...

Dr Vanessa@hpsvanessa.bsky.social · 3mo ago

It's #DigitalFriday ! This is my routine appeal to #skystorians and all other academics prepping for teaching to share any software, hardware, online resources (primary, secondary, teaching tools, blogs) tips and tricks that they've found useful this week! #AcademicSky 🗃️(pls boost to relevant feeds)

Insects highlight atmospheric patterns on the KNMI weather radar during last Saturday’s spring day.

Maarten Reyniers@mrtnrey.bsky.social · 4mo ago

Vandaag speelt regen de hoofdrol op de radarbeelden, maar zaterdag waren insecten heer en meester! 🦟 Op warme, rustige lentedagen vullen ze de onderste luchtlagen massaal, en worden ze zichtbaar op de ongefilterde radarbeelden. Daarbij onthullen ze de atmosfeerstructuur! 📡 Radar Herwijnen, KNMI. 🧵

Wait for it .... 11 seconds and BOOM! Some breathtaking footage from Fuego 🇬🇹 and @boisestate.bsky.social scientists in this great science update on infrasound sensors. eos.org/science-upda...

According to the UNESCO Tsunami Programme there is a 100% chance of a tsunami of at least 1 meter in height occurring in the Mediterranean in the next 30-50 years [1]. The French centre for tsunami alerts (CENALT) has a 15 minute warning window to send an alert message to the authorities [2]. 1/4

Realising that naming geological entities after countries can cause territorial disputes it is proposed to rename the North American plate “Drakonia” after the explorer of the North West Pacific, Francis Drake.

🌋 Éruption au Piton de la Fournaise Prise de vue du site éruptif ce matin à 9h10, heure locale. On y observe un lac de lave toujours actif, au sein d’un cône désormais bien refermé (© OSUL – Lyon 1 Université)

Earlier today a moderate size earthquake (M 5.0) has been recorded by the seismometer at Saba airport (Northern Leeward islands at 2 deg. distance). Within a radius of 15 km 6 smaller quakes occurred of which 2 M4.0 preceeded the M5.0 quake. earthquake.usgs.gov/earthquakes/...

Is global warming accelerating? A paper in this months Geophysical Research Letters hit the headlines. The authors observe through detailed statistical analysis and adjustments for known effects (e.g. El Niño, volcanism) a statistically significant acceleration of global warming. 1/4

The European Directive on the geological storage of carbon dioxide states that "Monitoring is essential to assess whether injected CO2 is behaving as expected, whether any migration or leakage occurs, and whether any identified leakage is damaging the environment or human health." 1/5

Record low sea levels in the Baltic Sea – Will there be a major inflow of saltwater from the North Sea? - IOW www.iow.de/message/item...

Record low sea levels in the Baltic Sea – Will there be a major inflow of saltwater from the North Sea?

Photo of turbulent waves on the Baltic Sea during stormy weather.

iow.de

Runaway isostasy: what happens when you expose the mantle at the Earth's surface? Not due to tectonic thrust sheets clipping a bit and forcing it up a thrust fault or the like, but the crust eroding through? You get the Cyprus's Troodos Mountains:

Uplift and Exposure of Serpentinized Massifs: Modeling Differential Serpentinite Diapirism and Exhumation of the Troodos Mantle Sequence, Cyprus

Coupled isostatic uplift-erosion modeling explains the outcrop pattern of the Troodos mountains Contrasting extents of serpentinization within the Mantle Sequence induced differential exhumation ...

agupubs.onlinelibrary.wiley.com

On the 15th of January at 15:28 local time (UTC time +1) a likely gas explosion caused several buildings to collapse in the historic centre of Utrecht. Luckily only 4 persons suffered minor injuries. It was clear though that people were shocked and didn't not now the best respond.

The perimeter ABCD on REM data near Ermelo is interpreted as a Roman camp [1] although its dimensions are suspiciously close to metric (AB=201m, BC=299m). On the original data it is hard to see if 1930s forest roads cut the ditch and bank. Optical dating results are expected early this year. #Roman

For #hillfortsWednesday another item related to the Counts of Hamaland. The 10th century Uplathe castle. At the location of the nearby St Vitus the counts had a castle and founded an abbey ('Stift Elten'). This area straddles the border between Germany and the Netherlands.

A narco-state is a country where legitimate institutions become penetrated by the power and wealth of the illegal drug trade. President Franklin Delano Roosevelt inherited from his opium trading grandparents (Mary Aspinwall Roosevelt and Warren Delano II) smuggling opium using fast "tea" clippers[1]

In 1614 the later governor-general of the Dutch East Indies, Jan Pieterszoon Coen, is famously to have uttered the words: "There can be no trade without war, and no war without trade." [1,2] Out of context this words are easily misinterpreted as a general reflection on global trade.

For #Hillfortswednesday the enigmatic Eelde Waterburcht, showing many concentric ramparts. Transport in mediaval times along the low lying areas around the North Sea and Wadden islands was mainly over water, so its topographic position might be relevant. www.academia.edu/attachments/...

During the Quasi-war (1797-1801) French privateers took American vessels. The disputed legality of this privateering resulted in court cases running well into the 20th century. Similarly, the U.S.A. may be in morally and legally troubled waters due to strikes against vessels in international waters.

For #hillfortswednesday a rampart hiding in plane sight: The Appelse Walburg dates from +/-11th century AD in an area ruled by the counts of Hamaland. It was only discovered in 2006 by a local teacher. Quite a surprise as a railway line was constructed right through the rampart! tinyurl.com/rs89zarz

The "Hunneschans" (Gelderland) is thought to be linked to 10th century AD iron production under control of the counts of Hamaland. Archaeological finds (flint tools and burial mounts) are mainly from the Late Mesolithic and Mid-Neolithic, with limited finds from later periods. #hillfortswednesday

On this #HillfortsWednesday not a hillfort sensu stricto, but a site that shows the ritual landscape of an Norwegian ironage burial site. At the Hå site a slope runs up a slope from the paleo-shoreline (indicated by red line) to a series of boat- or star shaped burial mounds. snl.no/H%C3%A5_-_ar...

#Oops: The seminal paper that has been used for 25 years to justify that the use of #Glyphosate is safe has been retracted. ▶️ www.sciencedirect.com/science/arti... "Concerns were raised regarding the authorship of this paper, validity of the research findings…"

We have upgraded our geomagnetic forecast today (12 November 2025) to the highest intensity level amid an ongoing solar storm. Current predictions suggest that the activity will result in potentially the largest solar storm to hit our planet in over two decades.

In the Netherlands when people contemplate climate impact they tend to look out to the sea, or over their shoulders to the rivers. It may be prudent though to start looking at the sky!

In 1976 Courtillot and Le Mouël [1] noted the occurrence of geomagnetic jerks. A jerk is a relative sudden change in the 2nd derivative of the geomagnetic field with respect to time. If such a behaviour would occur in a time series, what would be an appropriate statistical method to detect it?

Amazing that this became so relevant 2 months later!

Floris Strijbos@efpeel.bsky.social · last yr.

(Left) Illustration from The Ladies' home journal (1948) by Albert Dorne. (Middle) Still from  "Real Snow White" a short video by the award winning Finnish performance artist Pilve Takala (Right) Television series "The Handmaid's Tale" pilvitakala.com/real-snow-wh... tinyurl.com/pilviRSW

In the June New Scientist (https://tinyurl.com/botanyone), paleobiologist Colin Barras reports that there's growing evidence that the big five mass extinctions may, for plants at least, never have happened. This would put us in unchartered territory with the current biodiversity loss. (1/4)