WRF Weather Modellin’ Cluster

Another computer, another node added to my Basement Super Computer Cluster. I am up to 3 computers in my weather model cluster. Added another 6 core Phenom II to the mess. This computer seems to be unstable, so I should be careful not to overhype this. Your cluster is only as good as your weakest computer. It has been up for 24 hours straight now, so hopes are higher.

What these 6 additional cores have afforded me is to convert my nearly continental US covering model run from 25 km to 20 km grid spacing. I then expanded my 4 km grid spaced “meso” run from covering  just southern Minnesota, to nearly the 5 state area.

Took the opportunity to update the web page. The old page is still up and running, so feel free to use it. Some of you like legacy HTML with 15 year old javascript … I fully understand.

The new pages use OpenLayers and some HTML5/CSS3/Javascript to work their magic. Still not that pretty, but I am an engineer not a designer, so stop complaining.  The course grained run that covers the CONUS can be found here. The finer resolution meso run can be found here. I tried to make these pages work with mobile devices. I succeeded somewhat. They work OK with tablets, not so good with the smaller screens. OpenLayers added pinch and touch natively to their libraries, so that is kind of slick.

The other thing I tinkered with is the Turbulence maps. Some comrades over at Chicago are doing a study and they shipped over some preliminary results. They are comparing speed shear with pilot reported clear air turbulence. The results were quite promising, so I am going to see if I can use it operationally. The Turb 500 mb through the Turb 200 mb charts on the CONUS model run now show speed shear between 50 mb layers. These maps still highlight in thick red contours where the WRF thinks mod-sev Turb will be… so we have that for comparison. As  far as the shading… blue = 25-35 kts shear (lgt-mod turb) | yellow = 35-50 kts shear (mod turb) | red = >50 kt shear (sev turb). It will be interesting to see how this verifies.

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