The Weather Forecasting Forum

Michael, Thanks for the bump! Again my apologies, got busy and completly forgot! Anyway, looked into it this morning and the best guess I can figure out is that there is a file in DA (digatmos.rad) that has the URL links to the radara data. When DA goes out to get the radar data, it creates a file (...

Complete MADIS: https://madis-data.noaa.gov/cgi-bin/textXmlRqt?rdr=https%3A%2F%2Fpublic_madis_public%3A0823p%21nIaB%40madis-data.noaa.gov%2FmadisPublic1%2Fcgi-bin%2FmadisXmlPublicDir%3F&time=0&minbck=-60&minfwd=0&recwin=3&dfltrsel=1&state=AK&latll=25&lonll=-130&la...

My apologies, I haven't had time to look at this yet. I should have some free time next week.

Greg

The forum does not allow attachments, you'll have to cut and paste some of the data into a message or provide a link.

What data is in those files (nids)?

You might also change your domain sizes back down closer to 30 x 30. Tim has an "Analysis" paper he wrote (its on the website) that discusses the domain size; bigger is not always better!

texsky wrote: perhaps the upper radius slider doesn't go high enough?

You can go into the Registry (use Regedit) and change the setting for the upper radius and see if that helps.

Greg

Going back and checking the Analysis tab under prefences shows the following: Analysis type: Nearest Neighbor - Only the Smoothing Coefficient and Smoothing passes can be edited; all others greyed out, INCLUDING Automatic Smoothing. Weighted - Gamma and Reduction are greyed out; all others can be ed...

The Barnes method does not allow you to change the "Reduction", that is ONLY for Cressman and is greyed out the rest of the time. From the DA Manual (page 89): "Reduction - Determines a reduction value used in the Cressman analysis method for upper air data."

Peter,
You are obviously using Cressman for your analysis since that is the only method that allows you to "tune" the reduction setting. That is why I was asking for "Barnes" settings. Thanks for the information.