Callum Rollo
callumrollo.com
Callum Rollo
@callumrollo.com
Recovering oceanographer
Submitting new terms to the BODC vocabulary server feels like the one kid asking for more homework. Does anyone actually use these? I feel like controlled vocabularies are a nebulously good idea, but find it hard to articulate a real life use case.

github.com/nvs-vocabs/L...
New Term: Neil Brown Ocean Sensors Inc. (NBOSI) · Issue #8 · nvs-vocabs/L35
Hi vocab team, I'd like to request Neil Brown Ocean Sensors Inc. (NBOSI) be added to the L35 vocab. They make CTDs, inlcuding a couple on our sailbouys https://www.nbosi.com/ From their linkedin ov...
github.com
October 23, 2025 at 10:35 PM
coding so hard I might put it on strava. The logical endpoint of the standing desk
April 22, 2025 at 5:03 PM
A github issue I filed over 2 years ago just got resolved 🥳 never give up hope
January 30, 2025 at 7:40 PM
Reposted by Callum Rollo
🎉 argopy turns 5! 🎉
Join us as we celebrate this milestone with exciting activities:
🚀 Coding Challenges
🎮 Online Game Contest
📋 User Survey
📚 Free Training Camp
Get involved and help shape the future of Argo data! 🌊
👉 euroargodev.github.io/argopy-5years #argopy #argofloat #oneargo
1/5
Celebrating argopy 5 years anniversary ! — Celebrating argopy 5 years anniversary !
euroargodev.github.io
November 27, 2024 at 9:16 AM
A complete stranger just dropped into an Issue on a package I created. He offered a far superior and more elegant solution to a user's problem than I had given. Open source is the best!

github.com/callumrollo/...
Python discrete colormap use · Issue #49 · callumrollo/cmcrameri
Hello, I am trying to use the discrete version of the colourmaps but it just throws errors. fig,ax = plt.subplots() cax = ax.pcolormesh(x, y, data.T, norm=cm.LogNorm(), cmap=cmaps.batlow20) cbar = ...
github.com
January 27, 2025 at 2:08 PM
Inspired by @molly.wiki I finally signed up to wikipedia to correct an out-of-date oceanographic research vessel's page.

It amazes me that one of the greatest repositories of human knowledge is an open collaborative project.
Have you ever wanted to start editing Wikipedia, but got overwhelmed or felt like you didn't know where to start? Every time I encourage people to start editing, I hear that, so I'm trying to help.

www.youtube.com/watch?v=bRRH...
Become a Wikipedian in 30 minutes
Have you ever wanted to learn to edit Wikipedia, but got overwhelmed? This video will help you get started contributing to one of the best projects on the we...
www.youtube.com
January 23, 2025 at 12:36 PM
Last Monday I gave myself an hour to spin up a demo meteorological data display/download app with #python and @streamlit.bsky.social. Pretty happy with it! aws-demo.streamlit.app

This Monday I took an hour to realise I was debugging the wrong server 🫠

Win some you lose some. 🌊
aws-demo.streamlit.app
January 20, 2025 at 12:40 PM