John Ashcroft (@johnash92) 's Twitter Profile
John Ashcroft

@johnash92

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

ID: 765498980

calendar_today18-08-2012 10:50:47

23 Tweet

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Grand Old Team (@grandoldteam) 's Twitter Profile Photo

"Manchester United are strong but we killed them. David de Gea saved them. We could have really destroyed them." - Nikica Jelavic.

RedVee.Net 🌹 (@redveedotnet) 's Twitter Profile Photo

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

John Ashcroft (@johnash92) 's Twitter Profile Photo

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.

England Athletics (@englandathletic) 's Twitter Profile Photo

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

It's been a busy weekend of #EAChamps and international racing for our road runners. Congrats to all involved. See our website for details
John Ashcroft (@johnash92) 's Twitter Profile Photo

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

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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

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) 's Twitter Profile Photo

3. Using Met Office Science'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

3. Using <a href="/MetOffice_Sci/">Met Office Science</a>'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