Daniel Williams

PhD Student @ UoE | Modelling the climates of other planets because Earth’s not cool enough🪐☀️🌡️ | (he/him) |

[Daniel Williams @meteo_dan]

@RestIsPolitics #triplive Is Elon Musk a net positive or negative for the world?

[Daniel Williams @meteo_dan]

@DismalChips Why have @dcsandbrook and @holland_tom not yet covered this significant event in @TheRestHistory ?

[Daniel Williams @meteo_dan]

Great to be able to present my research at the @MetOffice_Sci as part of the @RMetS #RMetSEarlyCareers conference. 🌍

[BBC Weather @bbcweather]

Forecasters at NOAA have issued a rare Severe Geomagnetic Storm Watch for the first time since 2005.

A spectacular aurora is likely Friday night and into the weekend.

It's possible that satellite communications and power systems could be affected.

[Daniel Williams @meteo_dan]

@neiltlewis Great minds think alike. You win by having no light pollution though.

[Daniel Williams @meteo_dan]

For once the weather has played ball in Exeter; the first time I have ever seen the #Auroraborealis . I have of course my phone’s night mode to thank! @metoffice @bbcweather @aurorawatchuk

[Pedram Hassanzadeh @turbulentjet]

Students/postdocs: Join us @GeoSci_UChicago for the Rossbypalooza 2-week summer school on "Climate and Extreme Events" this July https://t.co/5hyOcINQaP. Visiting faculty: Paul O'Gorman (MIT, keynote), @BillBoos (Berkeley), @profadamsobel (Columbia), Yi Zhang & Jon Weare (NYU)

[Toby P Jones @tobyp_jones]

Abstract submissions close tomorrow... This was my favourite conference last year so don't miss out!

[Daniel Williams @meteo_dan]

@ExeterUniMaths @STFC_Matters @IscaModel

[Daniel Williams @meteo_dan]

...and is something we can measure on other planets. It turns out that when clouds are present on these planets, the albedo varies greatly both by season and whether you are in the summer or winter hemisphere. 🌼🌳🍂❄️

[Daniel Williams @meteo_dan]

Finally a big thanks to my co-authors Xuan, Paul and Juan for helping to turn what started as a one-week experiment into a fully-fledged paper!

[Daniel Williams @meteo_dan]

Why is this interesting I hear you ask? It comes down to something called albedo, which is simply a measure of how good something is at reflecting light🔦: snow has a high albedo☃️ and coal has a low albedo🪵. It affects how climates respond to radiation...

[Daniel Williams @meteo_dan]

Clouds like to interact with their surroundings—notice how the coldest nights are the ones without clouds—we find that clouds modify the seasonal behaviour in a feedback loop, changing the circulation and the timings of the seasons. 🌡️📅

[Daniel Williams @meteo_dan]

We find that seasons change massively with rotation rate; as you slow down, clouds drift significantly north/south with the seasons. We can link this with the large-scale circulation of the atmosphere, where regions of ascending air are more likely to form clouds. ☁️

[Daniel Williams @meteo_dan]

Absolutely thrilled to announce that my first paper has just been published online! 🍾

If you’re looking to procrastinate this afternoon then do take a look: https://t.co/5TOqtpAGkL 🌦️🌍💨

But if you’d rather not scroll through the entire article, here’s a quick explainer 🧵

[Daniel Williams @meteo_dan]

Thanks to the magic of climate models, we can test just that! Take an Earth-like planet with a global ocean (think Kamino you Star Wars fans), and spin it at different rates: from 128x slower than Earth🐢 to 4x faster than Earth (good luck sleeping when the day is 6hrs!). 🐇

[Daniel Williams @meteo_dan]

We’ve all seen the iconic Blue Marble image of Earth, covered in swirling bands of clouds. Clouds seem to form in specific areas, which ultimately is an effect of Earth's rotation. What if someone changed this rotation, would the clouds move? ⏱️

[Daniel Williams @meteo_dan]

Interested in climate or weather and looking for a friendly, welcoming conference in which to present your work, look no further! The RMetS annual Early Career and Student Conference is now open for abstract submissions (until 29th February).

👇For more details 🌦️

[Daniel Williams @meteo_dan]

Final reminder (before today’s deadline at 12pm GMT/1pm CET) to submit an abstract for our session on the Comparative Planetology of Atmospheres!

[Dr Stephen Thomson @StephenIThomson]

Please do consider submitting to our new #EGU24 session on 'Comparative Planetology of Atmospheres' convened by the brilliant @meteo_dan, @EmilyRBall, Mark Hammond and @neiltlewis (and me). #planets #atmospheres

[Daniel Williams @meteo_dan]

Submitted an abstract yet for our session #EGU24 yet? We've got an exciting session on the Comparative Planetology of Atmospheres we'd love to see contributions to. Don't let my graphic design skills go to waste!

https://t.co/6dDYtwc0Jc

@EuroGeosciences