Jan Zika
@janzika.bsky.social
710 followers 270 following 13 posts
Associate Professor at UNSW (Maths and Stats), Sydney. Our team aims to understand the role of the ocean and water in the climate system using innovative data science and modelling techniques. https://climate-data-dynamics.github.io
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janzika.bsky.social
Interesting thought @germac.bsky.social, I have often thought I could identify signatures of the Med in various diagrams but never go answering this exact question. Conveniently the med contribution is pretty easy to identify by its salinity. I have thoughts on how to do it (in a gcm at least)
janzika.bsky.social
Plugging my new course: Rage Against the Machine - Learning
janzika.bsky.social
Paper just out in AI4Earth led by the incredible @eveapiedagnel.bsky.social. We show how to exploit the ocean’s tight T-S relationship at constant pressure to map trends in salinity from sparse data doi.org/10.1175/AIES.... GMM works well because the relationships are so linear, but why are they?
doi.org
janzika.bsky.social
If anyone is at BACO25 looking for the room where a certain someone might be talking this morning 👀…it’s M211 - go right at the top of the escalator as you reach level 2. 🙂
janzika.bsky.social
Very proud of our student Josef (Joey) Bisits. My first time in JFM. It turns out you can have a stratified water column, mix it a little, and it becomes unstable. Fluid dynamics is fun!!!
taimoorsohail.bsky.social
🚨New Paper!

Led by Joey Bisits, with @janzika.bsky.social, we explore the drivers of cabelling instability in the ocean using a first-of-its-kind turbulence-resolving simulation. See here for energy budgets, diffusion calcs and pretty pictures using Oceananigans: doi.org/10.1017/jfm....
Cabbeling as a catalyst and driver of turbulent mixing | Journal of Fluid Mechanics | Cambridge Core
Cabbeling as a catalyst and driver of turbulent mixing - Volume 1011
doi.org
janzika.bsky.social
I was going over a digital version of a paper from the 80s with my student yesterday and the scan was so bad we could distinguish some of the labels in a figure. I said he should ask the author (Trevor McDougall) for a preprint as I know he has kept them, at least until recently.
janzika.bsky.social
Seems everyone has arrived at BlueSky! I am taking some holidays till January but looking forward to communicating with you all more on the platform about climate/ocean/fluids/data in the NY! 🥳😎🎄
janzika.bsky.social
Mine is on indefinite loan from Alex Brearly…is he on here?
janzika.bsky.social
As far as I know this isn’t an early April fools joke. I’m excited to try to get back to Scotland - though less excited to be there in February
janzika.bsky.social
Just submitted an ARC DP EoI. 2 improvements in addition to 2 stages imho: 1. CV section is shorter (in one bit 5pages is swapped with 1500chars!) 2. Project partners only need to prepare a 1 page CV. I am now no longer embarrassed to ask international partners to do the paperwork for a full ‘ROPE’.
janzika.bsky.social
What is your niceness limit? I just got requests from a PhD program to give a reference for a student who took a graduate class of mine 2 years ago. No warning from them. I only have their old student email which bounces. I’d like to think I’m a nice guy but…
janzika.bsky.social
This is cleverly done
Reposted by Jan Zika
taimoorsohail.bsky.social
Happy to have been asked to provide comments on a new and critical piece of work about Antarctic ice shelf melting for Nature Climate Change. Free link 👇

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