SACRUS Posted December 30, 2012 Share Posted December 30, 2012 http://arstechnica.com/science/2012/12/why-european-forecasters-saw-sandys-path-first/ Link to comment Share on other sites More sharing options...
PB GFI Posted December 30, 2012 Share Posted December 30, 2012 http://arstechnica.c...dys-path-first/ Sweet Thank you , from those of us who bow to the Euro and its better resolution ."This computational bottleneck limits the US model in two key ways. First, it runs at a coarser spatial resolution (about 25 kilometers, as opposed to 15 in the ECMWF model). Anything in the atmosphere that takes place at a smaller scale has to be approximated. In general, finer resolution models can directly simulate more processes, especially once you reach the scale of an individual storm cell. Second, the way in which measurements are fed into the models differs. The US model takes “snapshots” of data, builds a global picture (the initial conditions), and then begins the forecast simulation. The ECMWF model, on the other hand, takes continuous observations spanning half a day, runs the model with that real data, and then sets it loose on the future. While computationally expensive, this can result in more realistic initial conditions, and is part of the reason why the ECMWF model is usually reliable a couple days further into the future then the US model." Link to comment Share on other sites More sharing options...
Saturn510 Posted December 31, 2012 Share Posted December 31, 2012 Very interesting Link to comment Share on other sites More sharing options...
Brian5671 Posted December 31, 2012 Share Posted December 31, 2012 excellent article. Link to comment Share on other sites More sharing options...
ChineseFood4Snow Posted January 1, 2013 Share Posted January 1, 2013 Thanks for posting that...really interesting. Link to comment Share on other sites More sharing options...
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