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Transcript of Http:// The Year of the Block Geraint Vaughan 1 This is the footer.
http://www.ncas.ac.uk
The Year of the Block
Geraint Vaughan
1 This is the footer
http://www.ncas.ac.uk
This time last year...........
http://www.ncas.ac.uk
15 Jan2010
http://www.ncas.ac.uk
10 February 2010
http://www.ncas.ac.uk
8 March 2010
http://www.ncas.ac.uk
2 May 2010: volcanic aerosol
http://www.ncas.ac.uk
July 2010 – Russian heatwave: mean 500 mb height Jul 2010
NCEP reanalysis - ESRL
http://www.ncas.ac.uk
Here we go again………
http://www.ncas.ac.uk
Motivation for workshop
● Blocking is an important (and long-established) problem for both weather and climate
● The impacts of blocking for human activities can be far-reaching
● The dissipation of blocks has been notoriously difficult for NWP models to forecast – but is this still true?
● Climate models tend to have too little blocking – why? Is this a problem with blocking or another problem showing up as no-blocking – i.e. symptom or cause?
Is it time to re-examine the dynamics of blocking? Can we advance the subject?
http://www.ncas.ac.uk
Outcome of workshop
● Helps NCAS develop its research programme across Weather and Climate
● Inform NERC theme leaders – is this an area that needs a directed programme?
● Consortium?● International links