CMC model information request

Posted by: nitso

CMC model information request - 19/10/2010 21:41

Hi WZ,

Can you please link or explain what the new CMC model is? who owns/runs it? when does it run, and approx when is it updated on WZ? what resolution/domain it has etc etc.

Thanks, Nitso
Posted by: nitso

Re: CMC model information request - 19/10/2010 21:54

O a couple more Q's if I may

Could someone please advise re. accuracy of forecast charts using this model as opposed to or in comparison to the others in the ensemble i.e. EC, GFS, ACCESS, UKMET?? and final Q, what made WZ decide to add the CMC model as opposed to say for example the UKMET model.

Lots of questions I know, but I am intrigued as it gives us another toy to play with during the upcoming cyclone season smile
Posted by: Mega

Re: CMC model information request - 19/10/2010 22:28

CMC = Canadian Meteorological Centre

http://www.msc-smc.ec.gc.ca/cmc/index_e.html
http://www.weatheroffice.gc.ca/charts/index_e.html
http://www.weatheroffice.gc.ca/model_forecast/about_these_products_e.html
http://en.wikipedia.org/wiki/Canadian_Meteorological_Centre

Look forward to hearing from a WZ rep regarding the rest of those questions though!
Posted by: Dave-Wx

Re: CMC model information request - 20/10/2010 00:19

I think I heard somewhere that the models are considered in this order by the Bureau...

UKMET, EC, JMA (all pretty close)

Then GFS and the higher res ACCESS's (R, A etc)

And then ACCESS G.

I may have forgotten one or two, and may have an improved list tomorrow as well poke
Posted by: Willoughby

Re: CMC model information request - 20/10/2010 05:56

CMC is an excellent model for cyclone forecasting. smile
Posted by: KevD

Re: CMC model information request - 20/10/2010 09:55

Yep. spotted this one as well. Would love some more info smile
Posted by: Mega

Re: CMC model information request - 20/10/2010 10:12

Originally Posted By: Willoughby
CMC is an excellent model for cyclone forecasting. smile

I've heard the same thing from one of the US hurricane forums I visit during their season, although not too sure how well it performs for us in the southern hemisphere. This coming season will be a good test for it.
Posted by: Matt Pearce

Re: CMC model information request - 20/10/2010 10:31

The links that Mega posted earlier (particularly http://www.weatheroffice.gc.ca/charts/index_e.html) have quite a lot of information, including verification data for the CMC model compared to other models.

As to why we have chosen this model over others, the main reason is accessibility of the raw data (GRIB files). CMC is also now an input into the Weatherzone Opticast data, along with GFS, EC, ACCESS and TWC-Mesocast.

In terms of how well it performs in the Australian domain, I guess we'll all just have to find out! However, our preliminary verification suggests that it is on a par, if not slightly better than GFS across the Australian domain.
Posted by: nitso

Re: CMC model information request - 20/10/2010 14:47

Thanks everyone for the info. Those links are awesome thanks Mega.

Can't wait to see its first real test wink