• After witnessing the continued decrease of involvement in the SpotterNetwork staff in serving SN members with troubleshooting issues recently, I have unilaterally decided to terminate the relationship between SpotterNetwork's support and Stormtrack. I have witnessed multiple users unable to receive support weeks after initiating help threads on the forum. I find this lack of response from SpotterNetwork officials disappointing and a failure to hold up their end of the agreement that was made years ago, before I took over management of this site. In my opinion, having Stormtrack users sit and wait for so long to receive help on SpotterNetwork issues on the Stormtrack forums reflects poorly not only on SpotterNetwork, but on Stormtrack and (by association) me as well. Since the issue has not been satisfactorily addressed, I no longer wish for the Stormtrack forum to be associated with SpotterNetwork.

    I apologize to those who continue to have issues with the service and continue to see their issues left unaddressed. Please understand that the connection between ST and SN was put in place long before I had any say over it. But now that I am the "captain of this ship," it is within my right (nay, duty) to make adjustments as I see necessary. Ending this relationship is such an adjustment.

    For those who continue to need help, I recommend navigating a web browswer to SpotterNetwork's About page, and seeking the individuals listed on that page for all further inquiries about SpotterNetwork.

    From this moment forward, the SpotterNetwork sub-forum has been hidden/deleted and there will be no assurance that any SpotterNetwork issues brought up in any of Stormtrack's other sub-forums will be addressed. Do not rely on Stormtrack for help with SpotterNetwork issues.

    Sincerely, Jeff D.

Spatial Discretization and Leap Frogging

Joined
Jan 12, 2009
Messages
40
Location
Southbury, Connecticut
Recently through my Mesoscale class, I have become interested in this category concerning the use of nested grids to analyze and forecast mesoscale phenomena. I know a bit about it, being just a beginner on the subject I lack what others know. Fellow classmates and myself are engaging in a research project concerning the use of the Taylor series and hydrostatic equilibrium for the momentum equation, using it to solve leap frog and the Courant Friedrich Lewy scheme and to model out a forecast zone for temperatures one hour in advanced. (Big deal)

In any regard, if anyone has knowledge on this subject please submit whatever you can. I, as I'm sure anyone else interested, would appreciate reading what YOU have got to say! I'll submit what I can myself over time.

(Thanks to Donald J. Perkey for making it comprehensible in my Mesoscale Meteorology and Forecasting text.)
 
Agreed that this would probably be best in the advanced category.

While, I am relatively new to modeling I can share some of what I have stumbled across while modeling. While higher order schemes can help with stability and accuracy, this is not always the case. With the density current model (discussed in the advanced catagory), when I was having problems with it about a half a year ago, I tried applying higher and higher order methods. While in time it seemed to help, in space it seemed to create more issues than it solved. Remember with higher order methods in space, you are sampling cells farther out, so far out that in real life the information may not be able to travel to the box you're doing the derivative for. I think though it is largely dependent on what your trying to solve. Best of luck...

Again, I'm new to this too. So, there are probably others who might be able to shed more light on this.
 
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