John Ashcroft

PhD Student, CDT Fluid Dynamics, Leeds. Occasionally run in circles.

[John Ashcroft @JohnAsh92]

@CrossCountryUK And now we're delayed because there's no driver...

[John Ashcroft @JohnAsh92]

@CrossCountryUK 6.01 train to Leeds. The overcrowding is a joke. I can't even get to my seat even if I wanted to ask the people there to move. A few seats near me have been double booked. I chose this service as it was cheaper, why make the busier trains cheaper?

[John Ashcroft @JohnAsh92]

3. Using @MetOffice_Sci's unified model, analysis of Hagupit shows the uncertainty to be linked with the storm moving into a saddle point in the environment. Even with a perfect model, one small difference in initial position can lead to a completely different track. #CDTTweCon

[John Ashcroft @JohnAsh92]

2. Mathematical models generally do a good job at predicting a TC's motion… But not always. Hagupit was one such case where the track was poorly predicted. Ensemble forecasts showed large uncertainty in where the storm would go. Across the Philippines or turn north? #CDTTweCon

[John Ashcroft @JohnAsh92]

1. 'The Uncertainty of Typhoon Hagupit (2014)'. Tropical cyclones (TCs) are amongst the deadliest natural phenomena in the world. Accurately predicting these storms is vital for the communities they affect. However, to predict them we must also understand them. #CDTTweCon

[PubhD Leeds @PubhD_Leeds]

Next up John talking about the fluid dynamics of cyclones #HurricaneIrma #HurricaneHarvey

[EPSRC CDT Future Fluid Dynamics @CDTFluidsLeeds]

2. best poster prize in @CDTFluidsLeeds went to @JohnAsh92, best in @ITCDT went to Pravin, William, Matthew and Tomos

[England Athletics @EnglandAthletic]

It's been a busy weekend of #EAChamps and international racing for our road runners. Congrats to all involved. See our website for details

[Andrew Henderson @Henders78]

Good win for @philsesemann & 2nd for @JohnAsh92 in Bratislava! A very good weekends racing in Europe for the boys. Learnt a lot for sure 💪

[Phil Sesemann @philsesemann]

Solid run @CorkCitySports Mile. Apparently I, @JohnAsh92 & @FearTheWeir have found some Greek ancestry #teamhendo

[John Ashcroft @JohnAsh92]

@r_t_rory "I love selfies"

[John Ashcroft @JohnAsh92]

Leeds away, Hull in the cup, magic weekend and now Wire at home. I've chose some shite games to watch this season. Cunningham needs to go.

[Leeds Uni XC @LeedsUniXC]

Class runs by @JohnAsh92 and @philsesemann in the #BMCGP, impressive stuff

[Phil Sesemann @philsesemann]

Taking on the Irish in Dublin Road Mile with @JohnAsh92 this Sunday. Great support from @MPEndurance. Preview from: https://t.co/G7jIIPI8tH

[Bristol Uni Athletics @UniOfBristolACC]

@JoeThornton400 breaks the WORLD RECORD in the 60m Santa Dash for @BristolUni in 7.27!

[John Ashcroft @JohnAsh92]

@crosscountryuk will I be able to claim some of my ticket price back due to today's delays? (I was supposed to be on the 1pm bris-man)

[RedVee @RedVeeDotNet]

TRY TIME!! Whitehead scores, 26-6!! Shield is coming home! 👍👍👍

[RedVee @RedVeeDotNet]

28-6 SAINTS WIN! SAINTS WIN! SAINTS WIN! SAINTS WIN! SAINTS WIN! SAINTS WIN! SAINTS WIN! SAINTS WIN! SAINTS WIN! SAINTS WIN! #SLPLAYOFFS

[UberFacts @UberFacts]

96 years ago on this day, Mary (an elephant) was executed by public hanging in the U.S. for killing her trainer.