Hi HP,
Thanks for following up on this. It's still a work in progress on getting my code changes into the nightly. For the time being, if you would like, you could give a plugin I created a try. If you are interested, you can pick it up from our anonymous ftp server using the following commands from a terminal/command prompt window:
ftp ftp.ssec.wisc.edu user: anonymous password: your email address binary cd pub/incoming get tempRh.jar bye
This will remain on ftp for about a week before it is automatically removed. If you want the plugin but don't get a chance to grab it before it's removed, let me know and I can re-post it. Once you install this plugin and restart McV, add your GFS data source. I'm not exactly sure of what your setup looks like, but after I install this plugin and add a data source there are 2 "Sounding Data (with true winds)" derived fields listed. The first one plots everything correctly, with the full T, Td, and wind profiles. The second one gives an error and then only plots windbarbs at the two lowest levels.
This plugin added a parameter group for "Temperature and Relative Humidity". The plugin also modified a few of the derived formulas to use the parameter group, including Dewpoint, Mixing Ratio, and Equivalent Potential Temperature. Since the formula now derives Dewpoint correctly, the sounding works better. The reason that this isn't in the actual nightly yet is that the edited formulas from the plugin as well as the the IDV's version of the formulas are both being used. This means that several derived fields will be listed multiple times, where some work and some don't. We will implement a fix so that only these new formulas using the parameter groups will be used which should remove any of the derived fields that currently error.
When these code changes are added you can uninstall the plugin. Hopefully this can at least get you up and running in the nightly for now. Please let me know if you have any problems/questions related to the plugin. I'll keep you updated on when this code gets added to the nightly.
Thanks, Bob
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