José Luis Casamor

El problema del aterramiento de embalses y el cálculo de las reservas hidráulicas - Tierra y Tecnología Averiguar el grado real de aterramiento de nuestros embalses resulta crucial para calcular correctamente las reservas hidráulicas disponibles en el país.

Hace años que venimos avisando: www.icog.es/TyT/index.ph...

Se agota la vida útil de los embalses españoles Greenpeace alerta de que la vida útil de los embalses españoles se está agotando

Greenpeace alerta de que la vida útil de los embalses españoles se está agotando es.greenpeace.org/es/sala-de-p...

Stockholm University has launched a new interdisciplinary marine research network that brings together researchers across natural sciences, social sciences, law & humanities to spark new ideas and advance marine knowledge.

👉 Read more: buff.ly/Whgx018

Projections of 21st-century sea-level fall along coastal Greenland Nature Communications - Melting from the Greenland Ice Sheet triggers land uplift beneath the ice sheet and changes to Earth’s gravitational field and rotation axis, a process called Glacial...

rdcu.be/e0vKT

Synchronous mid-Holocene marine and terrestrial deglaciation in the Ross Sea, Antarctica - Nature Communications Methods used to date a network of marine sediment cores reveal that rapid retreat of the Ross Ice Shelf was contemporaneous with the lowering of nearby outlet glaciers, implicating warm ocean waters a...

New insights into the timing of the retreat of the Ross Ice Shelf during the Holocene. 🌊🧊❄️🇦🇶

Avalanches are becoming more common, thanks to climate change, researchers say Was the Italian ski resort disaster the result of weak snow packs?

Anthropogenic Global Warming, Landslides, & Avalanches 🧵

“The Intergovernmental Panel on Climate Change warned that warming temperatures have destabilised mountain climates, leading to more avalanches, melting glaciers and more intense storms.”

www.washingtonpost.com/news/worldvi...

There are 211,500 glaciers on this planet and we'll lose most of them this century because of human emissions! 🧊🔥

The peak of glacier extinction will occur 2040 to 2055! 📈

But each fraction of degree matters! 🌡️

Some of them can be saved! 🙏

@landervt.bsky.social
www.nature.com/articles/s41...

❄ November 2025: Arctic sea ice extent ranked second-lowest for November in the 47-year satellite record at 12% below average. Antarctic extent was the fourth-lowest for the month, 7% below average.

Find out more ⬇️

Day 8 of #BODCDataAdvent🎅🎄
Ever wondered what's on the seabed beneath the Arctic Circle? Check out #IBCAO gridded bathymetry data☃️❄️
Download subset regions of the IBCAO grid on our new beta data download service: betadownload.gebco.net, or download the whole grid: data.ceda.ac.uk/bodc/gebco/i...

El Fangar is the northern spit of the Ebro Delta. This map composition shows the awesome evolution of the zone since 1945.🌊⚒️

@cienciesterraub.bsky.social @defensaebre.bsky.social @igeociencias.bsky.social @elda-miramontes.bsky.social

Expansion of Antarctic Bottom Water driven by Antarctic warming in the last deglaciation - Nature Geoscience Antarctic Bottom Water progressively filled more of the deep Southern Ocean through the last deglaciation, potentially contributing to the increase in atmospheric CO2, according to neodymium isotope r...

⚒️ Article: Antarctic Bottom Water progressively filled more of the deep Southern Ocean through the last deglaciation, potentially contributing to the increase in atmospheric CO2

www.nature.com/articles/s41...

Sea level doesn’t rise at the same rate everywhere – we mapped where Antarctica’s ice melt would have the biggest impact Understanding what happens to Antarctica’s ice matters, because as it melts, sea levels rise, affecting lives and economies around the world.

Antarctica’s melt affects everybody but won’t hit every coastline the same.

New maps show where seas could rise the fastest, and why millions of coastal residents should pay attention now 🌊

Embassaments amb menys aigua de la que consta per l'acumulació de fang: mapa pantà a pantà - 3CatInfo L'ACA ha actualitzat els valors de referència i la Confederació Hidrogràfica de l'Ebre utilitza encara les originals, algunes de fa 100 anys

Avui #3cat emet aquesta noticía sobre els embassaments catalans a la que he pogut participar. Recordeu que la terra no es veu (millor dir, no es vol veure), però sobre tot no es beu!
@cienciesterraub.bsky.social @ub.edu #embalses

www.3cat.cat/3catinfo/emb...

🌊 Beneath the ocean surface, there's a hidden world of trenches, seamounts, and even volcanoes! So, how deep is the ocean on average?


Leave your best guess in the comments 👇

🏄🏻Explore more wonders of our ocean planet through our new web interactive: go.whoi.edu/ocean-world

#ItsAnOceanWorld

Seashells from centuries ago show that seagrass meadows on Florida’s Nature Coast are thriving Scientists are using mollusk shells to evaluate the health of Florida’s seagrass ecosystems.

🌊

🐚What can seashells tell us?

A new article in The Conversation co-authored by Tom Frazer, professor and dean of the College of Marine Science, explores how seashells can act as a historical record of seagrass health.

theconversation.com/seashells-fr...

Rapid transformation of biogenic silica to authigenic clay: Mechanisms and geochemical constraints Biogenic silica transforms to authigenic clay within 40 days, which is more responsive reverse weathering than previously assumed.

🌊 ‘Reverse weathering’, authigenic clay formation in marine sediments, may be far faster than thought

Fe(II)-bearing smectite and mica formed in just 40 days from diatom silica, showing rapid feedbacks on ocean chemistry

www.science.org/doi/10.1126/...

Aquesta setmana l'alumnat de l’assignatura “Ambients i Processos Sedimentaris Marinas” de 3r del Grau de Ciències del Mar està de sortida a la zona de Sant Jaume de Frontanyà.

#earths-science #geoscience #geology ⚒️

@cienciesterraub.bsky.social

My contribution to Day 6 - Dimensions of #30DayMapChallenge.

#3D model of the top surface of a reach of the Columbretes Grande turbidite channel sedimentary fill, my last paper published in @mdpiopenaccess.bsky.social (mdpi.com/3449880).

@cienciesterraub.bsky.social

⚒️ 🌊 🌍 🧪

PROTECTION OF SEABED CARBON IN SHELF SEDIMENT

🌊 New PhD opportunity!
Protection of Seabed Carbon in Shelf Sediment

Supervised by @marijasciberras.bsky.social and @coastalcarbon.bsky.social and hosted by The Lyell Centre.

More information:
iapetus.ac.uk/studentships...

Please share!

Portes Obertes ICM 2025 Vine a conèixer la recerca que fem! Enguany, et trobaràs un format híbrid de ciència i art.

🌊 Vols descobrir com investiguem el mar?

El 15/11 t’esperem a la Jornada de Portes Obertes de l’@ICMCSIC!
🔬 Visites, ciència, dansa i col·loqui art-ciència.

🎟️ Gratuït amb inscripció: https://ja.cat/5j2v5

#PortesObertesICM #CiènciaMarina #ArtISciència

Green line graph time series of average sea surface temperature anomalies for each January to September period from 1900 through 2025. There is large interannual variability, but an overall long-term increasing trend. Anomalies are computed relative to a 1981-2010 baseline.

Global mean sea surface temperature anomalies (departure from average) so far this year ➡️ 2nd highest on record 🌊

Data from NOAA ERSSTv5 averaged over January to September.

Ocean warming threatens the viability of 60% of Antarctic ice shelves - Nature The viability of Antarctic ice shelves under low rates and high rates of global warming is modelled to estimate when it will become unfeasible for the ice shelves to maintain their present-day shape.

🌊 Ocean warming threatens the viability of 60% of Antarctic ice shelves

If global temps stay <2 °C, nearly all 64 ice shelves survive by 2300. But above ~4.5 °C, ocean melt causes 38 shelves to collapse by 2300, risking up to 10 m sea level rise.

www.nature.com/articles/s41...

This is figure 1, which is a schematic of the processes that contribute to the Antarctic ice-shelf mass balance.

Up to 59% of Antarctic ice shelves may be at risk of disappearing under high-emission scenarios by 2300, according to an analysis of the effect of ocean warming in Nature. This could result in up to 10 m of global sea-level rise. go.nature.com/47Ag4k1 🌊 🧪

Related to my recent paper about #3D morphology of #turbidite channels published in @mdpiopenaccess.bsky.social (www.mdpi.com/3449880), I just edited this walking down the Columbretes Grande channel (Ebro Margin) highlighting the main #submarine relief elements.

@cienciesterraub.bsky.social ⚒️ 🌊 🧪

Descobreixen un sistema de falles incipient al Mar d’Alborán amb certs riscos sísmics amagats: Un equip de l’Institut de Ciències del Mar (ICM-CSIC) ha liderat un estudi pioner publicat a la revista Tectonics que identifica i descriu per primer cop amb gran detall un sistema de falles incipient al Mar d’Alborán, situat entre el sud de la península Ibèrica i el nord d’Àfrica. La troballa aporta noves claus per entendre com neixen i evolucionen les falles actives i té implicacions rellevants per a la comprensió dels riscos sísmics amagats en aquesta regió del Mediterrani occidental. L’article, titulat “Characterizing an Incipient Fault System: Insights From the Morphometric Analysis of the North‐South Faults (Alboran Sea)”, analitza l’estructura i la morfologia d’un conjunt d’escarpaments submarins a uns 60 km al sud-oest d’Almeria i relacionats amb el sistema de falles Nord-Sud, un sistema en les primeres etapes del seu desenvolupament. A partir de dades batimètriques d’alta resolució adquirides amb un vehicle submarí autònom (AUV) i la seva anàlisi geomorfològica i estructural, l’equip ha pogut reconstruir les primeres fases del seu creixement, un procés que fins ara s’havia observat molt poques vegades en entorns marins ...

🌊 NEREUS is out! with ocean sciences news shared by @batidivulga.bsky.social @bas.ac.uk @miquelortega.bsky.social @icman-csic.bsky.social Nº 310 - 22 October 2025

💻 Read here:
preview.mailerlite.io/preview/3647...

✍️ Free Subscription:
nereus.ub.edu#PfhDSLJfZriv...

Inevitable global coral reef decline under climate change-induced thermal stresses - Communications Earth & Environment Coral reef ecosystems will undergo significant degradation if annual bleaching rate exceeds 7.9%, according to combined historical field observations and future climate simulations.

🌊 Inevitable global coral reef decline under climate change-induced thermal stresses

New study identifies a critical threshold: 7.9% annual bleaching triggers major reef degradation.
Even best-case climate scenarios show widespread losses by 2100.

www.nature.com/articles/s43...

100 years of September sea surface temperature departures through this year. Check out how quickly some of the midlatitudes are warming! 🌊

Data from NOAA ERSSTv5 at doi.org/10.7289/V5T7...

Model overview: (a) preferential orientation of spheroids with various aspect ratios in wave and shear flow, (b) optical parameters for light attenuation by a particle, (c) change in light attenuation due to preferential particle orientation.

The way light reflects and refracts from water, esp. near the coast, has a lot to do with the sediment ( and other) particles suspended in them. What I didn't realize was that the waves can orient the particles, and thus how light behaves. 🧪🌊

Link: aslopubs.onlinelibrary.wiley.com/doi/10.1002/...

Global soil pollution by toxic metals threatens agriculture and human health Toxic metal pollution is ubiquitous in soils, yet its worldwide distribution is unknown. We analyzed a global database of soil pollution by arsenic, cadmium, cobalt, chromium, copper, nickel, and lead...

Global soil pollution by toxic metals threatens agriculture and human health | Science www.science.org/doi/10.1126/...

Aquests dies parlem a classe de la capacitat dels humans per modificar algunes de les variables que controlen l’evolució dels deltes, com és el cas del retrocés del #DeltadelEbre des del 1945. #DeltadelEbro

@cienciesterraub.bsky.social @ub.edu