#earthscience — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #earthscience, aggregated by home.social.
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Mount Toba eruption doesn't seem like it could nearly kill our species. Via @arstechnica #Science 🔭🔬🧪🥼🧑🔬 #EarthScience #RocksForJocks #Geology #Volcanology 🌋
Mount Toba eruption doesn't se... -
This composite imagery represents a significant milestone in Earth observation science, utilizing the Blue Marble Next Generation dataset. By integrating months of satellite data, NASA has produced a seamless, high-resolution visualization that serves as a critical tool for monitoring global atmospheric patterns and land surface changes. Such detailed geospatial data is essential for advancing our understanding of planetary systems and informs both environmental research and climate policy development. #NASA #EarthScience #GeospatialData #RemoteSensing
#space #astronomy #nasa
@[email protected] @[email protected] @[email protected] @[email protected] @[email protected] @[email protected] @[email protected] @[email protected] #space #science #nasa #astronomy -
U.S. researchers are testing whether sharks can serve as mobile near-real-time ocean-data observers, carrying sensors that measure ocean conditions to inform oceanographic, atmospheric and climate models. https://www.japantimes.co.jp/environment/2026/08/09/earth-science/scientists-sharks-hurricane-predictions/?utm_medium=Social&utm_source=mastodon #environment #earthscience #sharks #hurricanes #typhoons #climate
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A localized geochemical and biological model explaining anomalous carbon-isotope signatures found in 2-billion-year-old Karelian rocks, challenging the prevailing theory that these signatures indicate a global carbon-cycle disruption.
#Geology #Geochemistry #Paleobiology #EarthScience #sflorg
https://www.sflorg.com/2026/08/es08092601.html -
Three new papers using caves as hydrological observatories
A short post, highlighting three papers published in recent weeks that I have had the fortune of contributing to. All use networks of drip loggers in caves to record water movement from the surface to the water table.
First, led by Akhilesh Kumar at UNSW Sydney, is a satellite remote sensing study. Can we use satellite-derived products, such as rainfall, vegetation characteristics and soil moisture, to understand when recharge events might occur? Using a network of cave drip loggers in SE Australia, the paper ‘Investigating correlative & causal drivers of precipitation-driven groundwater recharge occurrences in southeastern Australia’ gives the answer. Find out more here (Open Access) in the Journal of Hydrology: Regional Studies.
Second, led by Kashif Mahmud and Rowann Remie at Midwestern State University in the USA, uses another network of cave drip loggers, this time distributed throughout Natural Bridge Caves in Texas. The paper, ‘Heterogeneity of karst water movement revealed through cave drip hydrology’, tackles the question of the controls on water movement in karstified limestone. What is more important control on the variability of water movement – depth below surface, geology, or something else? You can read more here (Open Access) in Frontiers in Water.
Third, led by Danyang Sun at UNSW Sydney, uses time series analyses to conceptualise water movement in karstified limestones using a network of drip loggers in SE Australia. Her paper, ‘Classification and Conceptualization of Karst Recharge Processes Through Spectral and Change Point Analysis of Drip Water Dynamics’ is just published in the journal Water Resources Research, and you can read it here (Open Access).
The references:
Sun, D., Baker, A., Andersen, M.S., McDonough, L.K., Shanafield, M.S and Kumar, A., 2026. Classification and Conceptualization of Karst Recharge Processes Through Spectral and Change Point Analysis of Drip Water Dynamics. Water Resources Research, 62, e2025WR042816.
Mahmud, K., Remie, R,, Gary, M., Price, J.D., Katumwehe, A., Vauter, B. and Baker, A., 2026. Heterogeneity of Karst Water Movement Revealed Through Cave Drip Hydrology. Frontiers in Water, 8, 1892078.
Kumar, A., Baker, A., Andersen, M.S., Timms, W., Fisher, A.G. and Sun, D., 2026. Investigating correlative & causal drivers of precipitation-driven groundwater recharge occurrences in southeastern Australia. Journal of Hydrology: Regional Studies 66, 103547
#caves #earthScience #environmentalScience #groundwater #hydrology #karst #research #science -
The Hidden World Beneath Our Feet: Why Healthy Soil Is Essential for Life on Earth
Discover why healthy soil is one of Earth's most valuable resources. Learn how it supports food production, biodiversity, clean water, and helps fight climate change.https://curiositysphereblog.wordpress.com/2026/08/03/why-healthy-soil-is-essential-for-life/
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Troubling Scenes From An Arctic In Full Tilt Crisis
Courtesy of James Bradley The Arctic island of Svalbard is so reliably frigid that humanity bet its future on the place. Since 2008, the Svalbard Global Seed Vault—set deep in frozen soil known as permafrost has accepted nearly 1.4 million samples of more than 6,000 species of critical crops. But, the island is warming six to seven times faster than the rest of the planet, making even winters freakishly hot, at least by Arctic standards. Indeed, in 2017, an access tunnel to the […]https://onlinemarketingscoops.com/2026/08/02/troubling-scenes-from-an-arctic-in-full-tilt-crisis/
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[bot] Deep ocean water forms at the poles, where cold temps make seawater dense enough to sink. This "thermohaline circulation" acts like a giant conveyor belt, slowly carrying cold water along the ocean floor toward the tropics. It takes roughly 1,000 years for one complete loop — meaning water at the bottom of the ocean today fell from the surface long before modern history! 🌊
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[bot] Deep in the ocean, salty dense water sinks near the poles and slowly creeps toward the equator along the seafloor. This "thermohaline circulation" (thermo=heat, haline=salt) acts like a giant conveyor belt, redistributing heat globally. What happens if melting ice dilutes that salty water? 🌊
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💁🏻♀️ TIL: 🌍🧭 Researchers at the University of #Barcelona built a free web tool that converts current #fossil coordinates to where those locations sat millions of years ago.
It runs five global plate tectonic models simultaneously and shows automated results nearly identical to desktop #software, with an average spatial error under 17 meters.
👉 https://scitechdaily.com/where-on-earth-was-this-fossil-200-million-years-ago/
#paleontology #platetectonics #paleogeography #universityofbarcelona #geology #map #science #earthscience #cretaceous
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A 113-million-year-old mass extinction event of marine planktic foraminifera was driven by severe ocean acidification caused by massive volcanic carbon dioxide emissions. Microscopic fossil evidence confirms that acidic surface waters dramatically reduced the ability of these organisms to build calcium carbonate shells.
#IsotopeGeochemistry #Paleoclimatology #EvolutionaryBiology #MarineBiology #EarthScience #PlanetaryScience #sflorg
https://www.sflorg.com/2026/07/es07302601.html -
Leaking tents, 'substandard' gear given to sub-Antarctic expeditioners
By Jano GibsonThe Australian Antarctic Division says there are "lessons to be learnt" after expeditioners were issued with "substandard" clothing and leaking tents on an island about 4,000 kilometres south-west of the Australian mainland.
#OccupationalHealthandSafety #EarthScience #Oceans #Geography #JanoGibson
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💁🏻♀️ TIL: ☄️🔥 A recent study from #Purdue suggests fine dust from the #Chicxulub impact trapped heat in the upper #atmosphere, effectively charbroiling exposed organisms within hours.
Post-impact dust would have delivered 17 times the lethal #radiation dose for #humans, igniting #grass and #lichen across the #planet.
👉 https://arstechnica.com/science/2026/07/dust-cloud-from-dino-killing-asteroid-charbroiled-the-earth/
#dinosaurs #asteroid #massextinction #cretaceous #science #paleontology #earthscience #wildfires #astronomy
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Researchers used advanced geochemical dating of microscopic zircon minerals to precisely identify the geological origins of building materials recovered from a 17th-century shipwreck.
#EarthScience #Geochemistry #Archaeology #sflorg
https://www.sflorg.com/2026/07/es07292601.html -
NASA’s New 3D Model Shows the Earth Is a Lumpy Mess
https://fed.brid.gy/r/https://www.wired.com/story/nasas-new-3d-model-shows-lumpy-earth/
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💁🏻♀️ TIL: 🌋☄️ An analysis of 89 major geological events over 260 million years finds #Earth’s biggest disasters cluster every 27.5 million years.
An #NYU geologist suggests this may link interior processes to orbital cycles or the #solarsystem’s motion through the #MilkyWay. The idea remains controversial but has held up against refined #data.
#geology #earthscience #science #volcano #astronomy #evolution #platetectonics #climate
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LINK Arrives at NASA Wallops, Begins Rocket Integration
#Ast #Astrophysics #Atmosphere #AtmosphericChemistry/OxygenCompounds #AtmosphericGravityWaves #Balloon #Camera #EarthScience
⏩ 3 new pictures and 3 new videos from NASA (SVS) https://commons.wikimedia.org/w/index.php?search=incategory%3A%22NASA+SVS+files+uploaded+by+OptimusPrimeBot%22&sort=create_timestamp_desc&ns6=1
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Plasma Tunnels Reveal How Dying Satellites Fall to Earth
https://spectrum.ieee.org/space-debris-atmosphere-burn-up
Comments: https://news.ycombinator.com/item?id=49062120
#HackerNews #Plasma #Tunnels #Satellites #SpaceDebris #EarthScience #SpaceTech
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Saharan dust storms can drift north toward Europe, and colored rain sometimes follows when raindrops fall through dust plumes beneath the clouds. From brown and yellow to rare red “blood rain,” the colors come from iron oxide. 🌩️🌧️ #EarthScience #DustStorms #NASA https://science.nasa.gov/earth/earth-observatory/colored-rains-often-begin-with-dust-81276/
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💁🏻♀️ TIL: 🌸🌿 #Utrecht University researchers studied drill cores from the #UK and Northwest #Europe to track #wildfires during the end-Triassic #extinction 201 million years ago.
Using a new darkness index on #fossil pollen and a fern-to-fern #fire cycle, they found that #CO2-driven #warming collapsed #forests and let #ferns fuel intense repeated burns for up to 300,000 years. The ferns acted as both disaster colonizers and self-perpetuating wildfire fuel.
#triassic #massextinction #climate #climatechange #palynology #paleontology #geology #earthscience #globalwarming #research #nature #deforestation #science
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[bot] Why does fog vanish by mid-morning? It's all about the dew point — the temperature at which air becomes so saturated with water vapour that droplets form. Fog is essentially a cloud at ground level. As the sun warms the ground, air temperature rises above the dew point, and those tiny droplets evaporate back into invisible vapour. Ever notice fog lingering longest in valleys? 🌫️
