09-11-2018, 03:10 PM
quote:You really are a silly fellow aren't you? So committed to your (and yes you own it) not affected by the mountains.. line that you can't help but post anything.. Anything I Tell Ya! to refute...
Originally posted by TomK
"I'm wondering if the presence of the mountains can have an effect on the atmospheric ridges/troughs plus wind shear in the area?"
Ridges and troughs are extremely large atmospheric regions of high and low pressure respectively. The location and the pressure difference between high and low-pressure systems are what create the steering winds for tropical cyclones and are not affected by the mountains. Wind shear, one of the main things that destroy hurricanes, essentially by decapitating them, generally occurs above 20,000-feet and is not affected by the mountains.
Ok.. so I will stand up to your wrath one more time. It's a whole lot easier than standing up to a hurricane and since we dodged this one.. well whatevers...
So.. I am poking around looking at the different models and their projected paths and all those spaghetti lines and discussions of troughs and shear and oh my you know all sorts of folks acknowledge.. except for that silly little "astronomer" on Puna Web.. that the mountains, especially the composite of the ones that comprise the Big Island.. do impact any weather system.. including hurricane.. including Olivia specifically... that happen to come their way.
Magic? Nah I wouldn't call it that.. except if you want to Tom, feel free to continue. But, for us more rooted in the sciences, and who like to watch and learn from any dynamic expression of Mother Nature, I think the data streaming in will do splendidly.
For instance, the nullschool.net site...
https://earth.nullschool.net/#current/wi...16.27,3000
Allows one to see the atmosphere at many levels. With slices from the surface up through the atmosphere all the way to a point where it is as thin, as rarefied I would imagine, as being practically none at all. Interestingly, if you happen to go there now, or any time as Olivia meanders her way through the islands, but right now she is beginning to get pretty graphic, you can see how the winds are being dissected, and channeled, and otherwise disturbed substantially, and being disturbed as high as 700hPa, which, is a bit more than your not affected by the mountains..
And, I know, its a model, right? Not real data.. Fake News! Or whatevers..
But, ok, what if it is modeled.. ie somebody who knows more than most actually programmed for it? Yes? No? And if so, is there a real data verses modeled data line.. past to future.. in that site's data set? Or by chance is this site now like the NYTimes is to Trump.. he don't like it so its fake? Is the null school site fake Tom?
Oh I love picking on that guy. Now he can spend the evening telling you all how bad I am... the uneducated unwashed masses rising up.. or whatevers..
And still.. watching Olivia is fun.. especially since nobody is going to get slammed all that bad..
