14,000 Years Ago, The Most Powerful Solar Storm Ever Recorded Hit Earth - This Event Establishes A New Worst-Case Scenario
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https://www.space.com/astronomy/sun/14-000-years-ago-the-most-powerful-solar-storm-ever-recorded-hit-earth-this-event-establishes-a-new-worst-case-scenario <-- shared technical article
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https://doi.org/10.1016/j.epsl.2025.119383 <-- shared paper
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“A storm as ferocious as the one of 12,350 BC would likely cause complete mayhem if it were to strike Earth and its surrounding space today..."
#spaceweather #prehistoric #extremesolarparticleevents #CCMSOCOL #14CEx #Radiocarbon #GlacialEpoch #solarstorm #infrastructure #risk #hazard #radiocarbon #IceAge #model #modeling #glacial #climate #geomagnetism #magnetic #protons #carbon14 #Quaternary #geology #treerings
#radiocarbon
https://www.alojapan.com/1231185/groundwater-anomaly-related-to-ccs-co2-injection-and-the-2018-hokkaido-eastern-iburi-earthquake-in-japan/ Groundwater Anomaly Related to CCS-CO2 Injection and the 2018 Hokkaido Eastern Iburi Earthquake in Japan #CarbonIsotopes #CCSCO2Injection #Groundwater #Hokkaido #HokkaidoEarthquake #HokkaidoNews #news #radiocarbon #北海道 Introduction There is a global consensus that some form of carbon capture and storage (CCS) technology is necessary to reduce CO2 emission associated with fossil fuel combustion into the atmosphere (IPCC Special Report, 2005). …
@whatkatiedigs.bsky.social has a funded PhD opportunity @uniofaberdeen.bsky.social
Using #ZooMS and #sedaDNA #ancientDNA, #radiocarbon dating and #geoarchaeology to find Scotland's lost Ice Age animals 🦣❄️
#PhDposition #archaeology #paleontology #biomolecular
Finding Scotland’s Lost Ice Ag...
20 years of AMS 14C dating using the Artemis facility at the LMC14 national laboratory: review of service and research activities
#Radiocarbon #Statistics Starting From The Year Interval
I have a #statistics question with regard to #radiocarbon calibration. Simply this: why should calibrated dates be reported with only two hard-coded percentages of the full probability distribution, one and two standard deviations respectively? It is pointless for archaeological purposes because it often creates discontinuous dating intervals.
We don't care that there may be an 11-year gap somewhere in the middle of a 120-year 1-sigma probability. We only look at the end dates.
#KnowledgeByte: #Radiocarbon #Dating is a powerful tool that allows scientists to determine the age of organic materials by measuring the decay of carbon-14.
It has provided invaluable insights into the past and continues to be an essential technique in various scientific disciplines.
Attention-Worthy Links for December 13th, 2024
#synchronous #memories #electroencephalogram #neocortex #long-term #Jezero #rim #anorthosite #superflares #magnetic #Ionizing #UV #X-rays #century #radiocarbon #Carrington #Peanuts #CBS #commercialism #Guaraldi #Linus #Luke #Geodesy #warped #terrestrial #water #storag
New evidence for #Viking Period activity on Riddarholmen Island in #Stockholm, plus some technical discussion of #radiocarbon #statistics
https://aardvarchaeology.wordpress.com/2024/11/20/radiocarbon-in-the-ad-900s-on-riddarholmen/
#Radiocarbon insight: OxCal makes the hard-coded assumption that you want 1 sigma or 2 sigma. It offers no provision for those who want the calculate the percentage of a probability distribution that lies between year1 and year2.
Are termite mounds a kind of civilization?
"Recent radiocarbon dating has revealed that these mounds are far older than any previously known, with some dating as far back as 34,000 years — that's older than the iconic cave paintings in Europe and even older than the Last Glacial Maximum, when vast ice sheets covered much of the northern hemisphere," Michele Francis.
Marking time: #CosmicRay storms can pin precise dates on #history from ancient Egypt to the Vikings | #Science | AAAS https://www.science.org/content/article/marking-time-cosmic-ray-storms-can-pin-precise-dates-history-ancient-egypt-vikings #archaeology #archeology #radiocarbon #dendrochronology
#UNSW #CHRONOS 14C facility is hiring a technician. Based at UNSW Kensington, working with their MICADAS AMS.
https://external-careers.jobs.unsw.edu.au/en/job/523062/technical-officer-radiocarbon
Closes TODAY.
C'mon @nytimes, that wasn't a "challenge" to scientific orthodoxy (whatever that means) - it's been clear from the very beginning that none of the #radiocarbon samples presented for an extremely old #pyramid at #GunungPadang came from archaeological contexts.
https://www.nytimes.com/2024/03/20/science/indonesia-oldest-pyramid-gunung-padang.html
The oldest pyramids in the world? Or maybe not, if the authors radiocarbon dated unrelated soil organic matter?
The story of this scientific retraction is here:
https://retractionwatch.com/2024/03/20/controversial-pyramid-paper-retracted-when-authors-turn-out-to-have-radiocarbon-dated-nearby-dirt/
#science #research #retraction #archaeology #pyramids #academia #radiocarbon
tl;dr: #Radiocarbon samples didn't come from archaeological context, still no #pyramid at #GunungPadang.
As already noted: https://mastodon.social/@jens2go/111381363335200820
Starting today, you can install iosacal with conda. This adds to the existing installation procedure with pip. Conda is a good fit for complex projects and has better tooling for reproducibility.
Installing iosacal can be achieved by adding conda-forge to your channels with:
conda config --add channels conda-forge conda config --set channel_priority strictOnce the conda-forge channel has been enabled, iosacal can be installed with conda:
conda install iosacalor with mamba:
mamba install iosacalGoogle Colab is a popular notebook service that you can run directly from your browser. Python is natively supported and it’s fairly easy to run a Jupyter notebook, even with custom dependencies like Numpy and Matplotlib.
You can run IOSACal in Google Colab! I have added a new short how-to guide in the official documentation. Find the how-to at https://iosacal.readthedocs.io/en/latest/google_colab.html.
This takes advantage of a demo notebook that was contributed by Jelmer Wind.
A screenshot of the demo notebook running IOSACal in Google Colab. Even with a plot!#KnowledgeByte: What is #Radiocarbon #Dating? What is it used for?
I have updated the documentation of iosacal with a new page that lists all research papers and case studies where the software gets a mention for being used.
A collage of figures from the papers using iosacalThe list is at https://iosacal.readthedocs.io/en/latest/literature.html and it’s longer than I thought, with 6 papers ranging from Norway to Antarctica, from the Last Glacial Maximum to the European Middle Ages.
It’s humbling to see this small piece of software find its way in so many research projects and I’m learning a lot by studying these publications.
Some authors contributed to iosacal with new features and bug fixes, and that is the most accurate metric of a healthy project that I can think of.
I’m going to add more useful content to the documentation as the main focus of the 0.7 release. In the meantime, you can continue using iosacal 0.6 in your research projects.
https://steko.iosa.it/2023/10/research-papers-and-case-studies-using-iosacal/