The self promotion continues - Voting is open for the DH Awards 2024, and "Lines of Flight" is in the category of "Best Use of DH for Fun". If you have played or enjoyed Lines of Flight, I'd love for you to give it a vote!
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#visualisation
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#NeuroScience #EEG #LSL #Spectrum #FrequencyBands #Visualisation #Samadhi
Samadhi EEG 2025.2 Release
• User changeable colours and frequencies in Dancing Dots display.
• Fixed black screen error on Windows devices.
• Dedicated executables (no installation necessary) for Linux and Windows
Download: https://github.com/jkanev/samadhi/releases/tag/2025.2
Project page: http://samadhi-eeg.info
Source code: https://github.com/jkanev/samadhi
Greg Cocks Five Droughts That Changed History [visualisations]
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https://www.informationisbeautifulawards.com/showcase/7611-five-droughts-that-changed-history <-- shared article
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https://labs.waterdata.usgs.gov/visualizations/drought-timeline/index.html#/ <-- USGS visualization page
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https://doi.org/10.1002/joc.7904 <-- shared paper
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#USGS #Vizlab #droughts #water #hydrology #visualisation #award #stripswarm #chart #temporal #streamgage #opendata #onset #duration #swarmlayout #timeline #GIS #spatial #mapping #spatiotemporal
@USGS
Example Of Maps Used Well In A Media Article About Greenland
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https://www.reuters.com/graphics/GREENLAND-ELECTION/MAPS/zjvqaeledvx/ <-- shared media article
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[this post is NOT about geopolitics, rather the excellent use of multiple maps to illustrate the story / situation… so no text from the article itself...]
#GIS #spatial #mapping #cartography #media #reuters #greenland #projection #visualisation #education #presentation #NorthwestPassage #NorthernSeaRoute #ice #climatechange #seaice #thaw #melting #navigation #routing #shipping #transportation #geopolitics #strategic #military #NORAD #monitoring #naturalresources #mineral #oilandgas #rareearth #indigeneous #FirstNation #size #population #area #mapprojection #marine #glacier #ocean
I really like earth.nullschool.net and refer to it often, it's such an amazing visualisation of the planet and extreme weather events. Here we see #TropicalCycloneAlfred bearing down on Brisbane, but an ominous pop-up when opening the site: I really hate that #Trump may cause it to become non-functional at any moment. Fuck this timeline.
"Witchcraft, Visualisation and Aphantasia"
by Kelly-Ann Maddox
You want to do guided meditations or visualisations, or astral travelling or hedge riding, but you cannot see images in your mind or have serious trouble with this? You may have aphantasia. But don't worry, there are alternatives for visualisation and Kelly-Ann talks about these in her video.
#NeuroScience #EEG #LSL #Spectrum #FrequencyBands #Visualisation
Do you like pretty pictures?
This is the start of a project to implement unusal, useful, interesting, fun ways to display EEG and spectrum data in realtime.
For the moment there's one view ("Dancing Dots"), more are going to follow. Implementation is in Python/Qt/OpenGL, idea is to have the whole thing modular so additional views can be integrated easily.
I've you've any ideas, or have come across interesting ways to display EEG (or generally multi-channel topological time-series data), I'd be eager to hear them.
Project page: http://samadhi-eeg.info
Source code: https://github.com/jkanev/samadhi
Had someone made a real-time #visualisation of all #GitHub or #GitLab commits? I remember seeing a #heatmap visualisation of the number of all global commits or something similar.
Thinking of something to put up on one of the monitors in the coffee room.
Inching closer to finalising a long running story / chasing a dragon about scales and resolutions of observation - especially on sea ice. AKA why we can't see all of the things from space and need to do fieldwork - which could apply to any landscape.
Upper part is a sea ice floe at 5cm resolution coloured by the variability of elevation in 10m cells of the same site (blue less, red more). Lower is the same site, with 10m elevation cells.
How accurate is this you think? I asked AI "What will New Zealand will look like in 2025..."
"Here’s a visualization of New Zealand in 2025, blending its stunning natural landscapes with advancements in sustainability and a deep respect for cultural heritage."
Le tour du monde de visionscarto.net (10)
Cette année, pour passer de 2024 à 2025, nous vous emmenons dans un voyage virtuel autour du monde, en puisant dans nos archives, un jour un lieu, un jour une histoire.
Jour 10 : Île-de-France
« La cartographie collaborative pour lutter contre l’artificialisation des terres en Île-de-France » - 2021
https://www.visionscarto.net/lutter-contre-l-artificialisation-des-terres
Par Aude Vidal
Magic in Your Mind
No tools. No ingredients. Just your mind. Here is a personal experience and also some suggestions how to do this:
Le tour du monde de visionscarto.net (08)
Un voyage virtuel autour du monde, un jour un lieu, un jour une histoire
Jour 8 : Monde arctique
« Concurrences frontalières et partage de l’#Arctique »
> La délimitation des zones de souveraineté en Arctique font l’objet d’intenses discussions. Les revendications des États qui l'ont conquis se superposent dans un espace où le #DroitInternational est encore embryonnaire.
https://www.visionscarto.net/concurrences-frontalieres-partage-arctique
[#commemorations] Mise à jour du #dataset en #opendata des célébrations et commémorations nationales en #France depuis 1970 : https://www.data.gouv.fr/fr/datasets/celebrations-et-commemorations-nationales-en-france-depuis-1970
L'occasion de tester un petit peu la nouvelle interface utilisateur de @datagouvfr 
Voir aussi mon pouet de janvier 2024 sur la 1ère version du #jeudedonnées et billet de #visualisation : https://framapiaf.org/@daieuxetdailleurs/111799605957328836
#histoire #memoire #patrimoine #histoirenationale #histodons
@archivistodon
Qlq éléments rapides sur les 59 événements de 2025 
www.data.gouv.frCélébrations et commémorations nationales en France depuis 1970 - data.gouv.frA partir des années 1970, le ministère des affaires…
Given their wide use and proneness to misinterpretation, #barcharts are probably the worst data #visualisation https://www.nature.com/articles/d41586-024-03996-w
www.nature.comBad bar charts are pervasive across biologyScientific ‘shorthand’ could be introducing data distortions into published papers.
Exploring BlueSky's Domain Handles
Hot new social networking site BlueSky has an interesting approach to usernames. Rather than just being @example you can verify your domain name and be @example.com! Isn't that exciting?
Some people are @whatever.tld and others are @cool.subdomain.funny.lol.fwd.boring.tld
I wanted to know what the distribution is of these domain names. For example, are there more .uk users than .org users?
Shut up and show me the results
You can play with the interactive data
Oh, and the large number of .gy domains is due to The Fediverse Bridge.
Getting the data
BlueSky has an open "firehose" of the data passing through it. Following the sample code I listened for public interactions - people posting, liking, or follows.
From there, I grabbed every username which wasn't on the default .bsky.social domain. I left the code running for a few days until I had over 22,000 usernames.
Note, these data are all public - although I'm not sure if users necessarily realise that. It doesn't include lurkers (people who don't interact). Some of the accounts may have been moved, banned, or deleted.
Drawing a TreeMap
I used Plotly's TreeMap library to draw a static map of all the Top Level Domains (TLD).
As you can see, .com dominates the landscape - but there are quite a few country code TLDs in there as well.
Public Suffixes
Domain names have the concepts of Public Suffixes. For example, users can register domains at .co.uk and .org.uk as well as just plain .uk. The Python tldextract library allowed me to see which domains were public suffixes, so I could attach them to their parent TLD.
I then drew a TreeMap showing this.
Note! You'll need to hack your Plotly installation to allow empty leaf nodes to get in the same style as the first map.
So what? What next?
- Not everyone from, say, Brazil will have a .br domain name - but it is fascinating to see which countries dominate.
- It might be fun to go full "Information Is Beautiful" and turn each ccTLD into its country's flag.
- Are there ethical implications of recording the fact that an account has publicly shared themselves on a social network?
- What percentage of all users have a domain name handle?
Get the code
Everything is open source on GitHub.
Sometimes we wonder about how time flies, how just again a year has passed, but really, is a year that much? Not really. It is not really understandable how old our universe is, but trying to comprehend, I've spontaneously built the following webpage:
https://timeline.wolkenheim.eu
I just used HTML and CSS for it and think it looks great for about an hour worth of work.
timeline.wolkenheim.euTimeline
Rivers In The Sky – 6 Facts You Should Know About Atmospheric Rivers
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https://www.usgs.gov/news/featured-story/rivers-sky-6-facts-you-should-know-about-atmospheric-rivers <-- shared technical article
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[for those of you on the US West Coast especially]
#GIS #spatial #mapping #AR #AtmosphericRivers #climatechange #extremeweather #risk #hazard #rainfall #precipitation #water #hydrology #forecast #weather #mitigation #planning #coast #storm #ocean #marine #massmovement #engineeringgeology #PNW #California #model #modeling #spatialanalysis #remotesensing #visualisation
@USGS
GIF
[new]
"Cartographier l’#empilement : le cas des aires protégées sur les #îles en #Mediterranée"
> Les quelques 15 000 îles de la Méditerranée, reconnues pour la richesse de leur #biodiversité, bénéficient d’une pléthore de statuts de protection environnementale terrestre et marine. Mais les statuts de protection s’accumulent, les aires protégées se multiplient. Comment cartographier cette #complexité ?
