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Archive for the 'Clouds' Category

Gary Llyod reports on the INUPIAQ (Ice NUcleation ProcessInvestigation And Quantification) Project, which is based in the Swiss Alps, at the Jungfraujoch (3571m), Shilthorn (2970m) and Kleine Scheidegg (2061m) sites.

In this episode Gary talks to Dr Keith Bower from the Centre for Atmospheric Science at the University of Manchester about his role in the INUPIAQ campaign, James Bond, and the importance of upwind and downwind measurements. 

George Lazenby clearly isn't impressed by Gary's carrier bag.

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That's right, its all in that thin blue line.

Hold on, wait, what's is connected to again? And what is a "troposphere" while we are at it. How far away is space, also, what is space...This time we have a look at the structure of our atmosphere.

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Join us as we take to the skies in our first episode of 2011, exploring the aircraft scientists use to study the atmosphere. Dr. Keith Bower regales us with tales of his adventures in the high clouds, looking back at his 12 years of science flying. Will and Jen take us on board the UK research aircraft, the Facility for Atmospheric Airborne Measurements BAe-146, and as always, we cover the recent weather and climate news.Featuring: Grant Allen, Gavin McMeeking, Will Morgan, Jennifer Muller and Niall RobinsonInterviewee: Dr. Keith BowerProduction: Gavin McMeekingMore info:Check out these links for pictures and to learn more about some of the aircraft we discuss in this episode: Dournier 228, C-130 (US), G-V, WB-57, ER-2, Geophysica, NASA Global Hawk, and the NASA Proteus .And here's our very own picture of a US Forest Service Twin Otter used to study smoke from prescribed and wild fires:USFS_TwinOtter.jpg

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Wave clouds over the UK

For those of you who like a good cloud, today we had some rather impressive wave clouds over the UK. Click here to see some satellite images and plots. The wind pushes air over the hills and as it drops down the other side it starts to oscillate forming a wave pattern.

To make a wave cloud you need three things: a strong inversion, some wind and a hill or two. The radiosonde ascent shows that there is indeed a very strong inversion over the UK which is due to high pressure shown in the synoptic chart. The high pressure system is centred over the UK and as air rotates clockwise around a high pressure system in the Northern hemisphere this leads to Easterly winds over England and Wales. The Western boundary of the hills can be seen clearly in the satellite images.

This isn't a particularly rare occurrence, but the conditions have to be just right. If you have seen some wave clouds let us know.

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Snow Business

This episode there's no business like Snow Business as we discuss the winter weather with Prof. Geraint Vaughan. Find out what causes snow, why we have got so much the last couple of years and if we can expect more of the same in the future. We also talk to Dr. Paul Connolly who makes it snow indoors at Manchester University.

Merry Christmas and we'll be back in the new year with another fascinating episode of The Barometer.

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