Last week, we were lucky to have great weather (no heatwave yet) for infiltration tests in Brussels.

The Comité Départemental de Spéléologie de l'Ardèche (CDS07) has launched a fluorescent dye tracing campaign in the Saint-André-de-Cruzières basin.

Americans, the richest people in the world, no longer care about anything except their own economy www.economist.com/interactive/...

We're proud to have provided our compact STREAM fluorometers for this project. Having a compact autonomous instrument is an advantage when you have to crawl through narrow passages as a speleologist. france3-regions.franceinfo.fr/auvergne-rho...

Once in a blue moon, a dye tracing restitution curve in karst behaves exactly as predicted. Textbook-worthy!. Our tracer testing for www.epukarst.be on transfer and storage of nitrates in karst continues. Colleague Amaël was quite enamored 🤩 with this graph. Hydrogeologists are a bit peculiar 😅.

𝗔𝗻𝗰𝗶𝗲𝗻𝘁 𝘄𝗮𝘁𝗲𝗿 𝘄𝗶𝘀𝗱𝗼𝗺: 𝗕𝗲𝗹𝗴𝗶𝘂𝗺 𝗮𝗻𝗱 𝘁𝗵𝗲 𝗼𝗿𝗶𝗴𝗶𝗻𝗮𝗹 𝗦𝗽𝗮 ⛲🛁 Spa is a town in Belgium and the origin of the concept of thermal baths. Spa has attracted visitors for centuries, from the Romans, who called it "Sparsa" or "to gush," to St. Remacle, who performed miracles with its mineral-rich springs in 641.

Wonderful weather for some infiltration tests today. As a good oiled machine our dream team finished 8 infiltration tests and 2 soil profiles in 6 hours.

If you attend a hydrogeological conference, you may hear the terms 𝗗𝗮𝗿𝗰𝘆 𝗳𝗹𝘂𝘅 𝗮𝗻𝗱 𝗻𝗼𝗻-𝗗𝗮𝗿𝗰𝘆 𝗳𝗹𝘂𝘅, 𝗼𝗿 𝘁𝘂𝗿𝗯𝘂𝗹𝗲𝗻𝘁 𝗳𝗹𝗼𝘄. In hydrogeology, we often assume that the flow of groundwater follows Darcy's law, which assumes that the flow rate is directly proportional to the hydraulic gradient.

I'm leaving soon for a week-long hike in the Cotswolds! As usual, whenever I travel somewhere new, I look for unique water features, whether natural or man-made.

www.theguardian.com/commentisfre... We are raising the alarm because continuing observations of one of our most important components in the climate system are becoming unsustainable.

Unfortunately, my apartment building is suffering from water ingress, which is probably related to a faulty rainwater drainage system. However, groundwater infiltration is also a possibility.

Jumping on the #grwm trend to reveal the truth about earthquake prediction.

Water challenges related to climate change are not limited to droughts, floods, or pollution. Subsidence of urban areas is another threat already present in large metropolis such as Mexico City, Shanghai, Bangkok, or Tokyo. Will London be added to the list? www.theguardian.com/environment/...

Pokémon Go data trained AI that could assist military drones in war zones

We now get regular sustained periods of rain every winter. And floods. Because we don't have a national plan allow rainwater to penetrate our soils to a greater depth. This is one result. Losing land to rmore reservoirs another. #bluegreenuk #rehydrateoursoils www.theguardian.com/environment/...

I don't think we should talk about climate change anymore, we should talk about kitchen-table issues. Like how climate change will destroy your kitchen table and everything else you have

Wonderful news for karst enthusiasts! The @iahgroundwater.bsky.social Karst Commission 🪨💧now has a LinkedIn page which you can follow easily. They page will inform you about karst news, events, and more. Don't forget to ring the "bell" 🔔! Follow here 👉 www.linkedin.com/company/iah-...

A popup bookshop with second hand English books recently opened in my neighbourhood. Obviously I had to go check it out. The rest is history 😏📚...

A FIFA referee has spent more time in federal custody for being Somali than anybody on epstein's list for raping kids.

The 4th ed. of the GEM Magazine by The Dewatering Institute is out! I was surprised about how packed to the brim this magazine is with technical insights, case studies, and interesting interviews. As if a foreword by industry legend Martin Preene isn't enough 👉 dewateringinst.com/the-gem-maga...

‘I’m hoping to meet a river goddess’: a wild journey through Britain’s mythic waterways

A groundwater tracing operation The Comité Départemental de Spéléologie de l'Ardèche (CDS07) has just launched a fluorescent dye tracing campaign in the Saint-André-de-Cruzières basin.

Rehydrate our land. Make urban ground more permeable. Mitigate flood damage and make groundwater our primary water store. #bluegreen www.theguardian.com/environment/...

War crime.

𝗔𝗻𝗰𝗶𝗲𝗻𝘁 𝘄𝗮𝘁𝗲𝗿 𝘄𝗶𝘀𝗱𝗼𝗺: 𝘁𝗵𝗲 𝗧𝗮𝗺𝗮𝗴𝗮𝘄𝗮 𝗔𝗾𝘂𝗲𝗱𝘂𝗰𝘁, 𝘄𝗮𝘁𝗲𝗿 𝗳𝗼𝗿 𝗧𝗼𝗸𝘆𝗼 💧🏯 The Tamagawa Aqueduct, built in 1653 was incredibly important for Tokyo (then Edo) during the Edo-period in Japan and supported the growth and further development of the city.

A wonderful project by the 𝗖𝗼𝗺𝗶𝘁𝗲́ 𝗱𝗲́𝗽𝗮𝗿𝘁𝗲𝗺𝗲𝗻𝘁𝗮𝗹 𝗱𝗲 𝘀𝗽𝗲́𝗹𝗲́𝗼𝗹𝗼𝗴𝗶𝗲 𝗱𝗲 𝗹’𝗔𝗿𝗱𝗲̀𝗰𝗵𝗲. The caving club is performing dye tracer tests to better understand groundwater flows in the karst systems of the Ardèche region. www.ici.fr/auvergne-rho... 𝘐𝘮𝘢𝘨𝘦 𝘤𝘳𝘦𝘥𝘪𝘵: 𝘊𝘩𝘳𝘪𝘴𝘵𝘪𝘢𝘯 𝘙𝘖𝘜𝘚𝘛𝘈𝘕

𝗗𝗮𝗿𝗰𝘆’𝘀 𝗟𝗮𝘄 💧 Darcy’s Law is fundamental to modern hydrogeology. Formulated by French engineer Henry Darcy in 1856, it explains how groundwater moves through porous media by linking hydraulic conductivity, hydraulic gradient, and flow rate in a single equation.

Pleased to share that our paper, "Evident Dependence of Dynamics of Baseflow on Groundwater Across the Contiguous United States, "is now online! - Wiley Online Library agupubs.onlinelibrary.wiley.com/doi/10.1029/... Many thanks to my prof. Wang Lichun, Di Gao, and @hylke_beck.

We're happy to announce that TRAQUA's Sofie de Volder was voted in as a member of the board of the Belgian Chapter of the @iahgroundwater.bsky.social during the GA last Friday. belgium.iah.org

Crazy that this is getting barely any coverage. This year’s European Press Prize was just awarded to an investigative report by the Dutch newspaper De Volkskrant. Almost all of them died or were left severely disabled. share.google/mbOrgZ69hd87...

Just launched at Public Spaces in Amsterdam, The European Social Stack Open Declaration! A set of common principles agreed by complementary technology leaders 🫶 Read the declaration, add your signature, and share: european.social #EUSocialStack #Europe

Over my dead body 🧪 www.nature.com/articles/s41...

𝗔𝗻𝗰𝗶𝗲𝗻𝘁 𝘄𝗮𝘁𝗲𝗿 𝘄𝗶𝘀𝗱𝗼𝗺: 𝗥𝗮𝗶𝗻𝘄𝗮𝘁𝗲𝗿 𝗺𝗮𝘀𝘁𝗲𝗿𝘆 𝗯𝘆 𝘁𝗵𝗲 𝗭𝗮𝗽𝗼𝘁𝗲𝗰 𝗶𝗻 𝗠𝗼𝗻𝘁𝗲 𝗔𝗹𝗯𝗮́𝗻, 𝗠𝗲𝘅𝗶𝗰𝗼 🌧️⚡ Monte Albán showcases some of the finest hydraulic engineering. The capital of the Zapotec civilisation (500 BCE–800 CE) thrived in a semi-arid region thanks to its excellent rainwater management system.

We mixed things up a bit... Over the last weeks, we had the opportunity to test some non-fluorescent, food-grade tracers from FLUOTECHNIK in order to characterise a drainage network on an industrial site.

Prepare for imminent return of El Niño, UN warns

Rainwater management, flood risk assessments, and NBS* are not frivolous. They are meant to address increasingly common rainstorm events. Sponge cities, or "slow water", as described in @ericagies.bsky.social 's 𝗪𝗮𝘁𝗲𝗿 𝗔𝗹𝘄𝗮𝘆𝘀 𝗪𝗶𝗻𝘀, are the only way forward. www.brusselstimes.com/belgium/2166...

A few months ago we performed a 𝗱𝘆𝗲 𝘁𝗿𝗮𝗰𝗶𝗻𝗴 𝗰𝗮𝗺𝗽𝗮𝗶𝗴𝗻 🧪 for a research project on 𝗔𝗾𝘂𝗶𝗳𝗲𝗿 𝗦𝘁𝗼𝗿𝗮𝗴𝗲 𝗮𝗻𝗱 𝗥𝗲𝗰𝗼𝘃𝗲𝗿𝘆. This is part of the @natalieproject.bsky.social, a EU-funded initiative that promotes 𝗻𝗮𝘁𝘂𝗿𝗲-𝗯𝗮𝘀𝗲𝗱 𝘀𝗼𝗹𝘂𝘁𝗶𝗼𝗻𝘀 (𝗡𝗕𝗦) to address the challenges of climate change across Europe.

Vanaf 2028 wordt de rivier de Woluwe in de Brusselse gemeente Watermaal-Bosvoorde opnieuw opgengelegd aan het Royale Belge-gebouw langs de Vorstlaan.

Interesting to play around with this water security atlas and get all depressed before the start of the weekend. The pollution map is the result of research carried out by three organisations: @theguardian.com, @watershed-i.bsky.social, and @investigate-europe.eu. Enjoy! felt.com/embed/map/WA...

La nappe phréatique transfrontalière du fossé rhénan supérieur, qui s'étend de Francfort à Bâle en passant par l'Alsace, est la plus grande réserve d'eau souterraine d'Europe. Elle alimente en eau potable plus de cinq millions de personnes. fr.euronews.com/2026/05/25/t...

🐶🐱☠️ Vlooien- en tekenmiddelen voor huisdieren blijken extreem schadelijk voor insecten en waterleven. Stoffen als fipronil en imidacloprid komen via honden en katten in het milieu terecht — terwijl ze in de landbouw deels verboden zijn. Tijd voor veilige alternatieven. 🌿 https://ow.ly/z5gr50Z5hWr

Et vous nous connaissez. Quand on se pose une question, on ne la laisse pas sans réponse. On vous en parle dans ce nouvel article écrit par nos équipes sur @france.theconversation.com theconversation.com/refuges-ther...

In our continuous effort to prioritise European-based products (just like our STREAM fluorometers 🔦, which are 95% made in Belgium 🖤💛❤️), we switched to the @eurosky.social data servers for our Bluesky 🦋 social media. The transfer was surprisingly straightforward!

Postpone your holiday, because there are plenty of groundwater events taking place in June! This month in TRAQUA News 👉 Characterising drainage systems through dye tracing. 👉 Ancient water wisdom. 👉 Upcoming events. 👉 New research articles. www.linkedin.com/pulse/traqua...

Groundwater salinization is basically a problem right about everywhere water is pumped from the ground. Seawater intrusion is a primary source of the salt, but ancient brines and salt deposits are also in play. 🧪⚒️ Link: https://www.science.org/doi/full/10.1126/sciadv.ady2322​

𝗔𝗻𝗰𝗶𝗲𝗻𝘁 𝘄𝗮𝘁𝗲𝗿 𝘄𝗶𝘀𝗱𝗼𝗺: 𝗧𝗵𝗲 𝗙𝗼𝘂𝗻𝘁𝗮𝗶𝗻 𝗼𝗳 𝗞𝗶𝗯𝘆𝗿𝗮, 𝗧𝘂̈𝗿𝗸𝗶𝘆𝗲 ⛲ The ancient city of Kibyra is located in SW Türkiye. Once known as the 'city of gladiators', it showcases many remnants of civilisation. One that stands out is the fountain, built in 23 BC, which still provides drinkable water today!

My safety coordinator at work shared this with me today. youtu.be/3qiI1P1rP6E?...

Wonderful news, especially with 'controversial' US companies such as Palantir infiltrating UK health services and personal data. TRAQUA's data are stored on a private NAS and on OVHcloud servers in Strasbourg. I'm happy to see local alternatives for critical sectors such as healthcare and defense.

Belgian IT firms team up to offer sovereign cloud storage for critical sectors