[gradsusr] New meteogram with 0.25-degree GFS data

[Jennifer Adams]

On Jan 20, 2015, at 12:48 PM, Jeff Duda <jeffduda319 at gmail.com> wrote:

> Jennifer,
> It certainly shows the utility of Grads for the purposes of making meteograms. I assume to make the colored shading below the lines in 2-m temperature, dewpoint, and RH maps you used gxout bar with different barbase values?
No, I use ‘gxout linefill’ and a series of display commands for each color interval, each with its own ’set lfcols’ command. 
> 
> One suggestion: keep the time ticks every day. I know the GFS isn't heavily used for nowcasting or high resolution events, but one can get lost interpolating between two-day ticks.
Yes, I’d prefer that too, but the GrADS doesn’t have that level of control over time axis labeling. 

> 
> Also: the values for CAPE look weird. Is the vertical axis really that small for this meteogram (8 J/kg of CAPE...since it's January I wouldn't expect to see high CAPE in DC) or is there some implicit scaling?
With a few exceptions, the vertical axes are based on the range of values in the data. I may be using the wrong CAPE variable though — there was a new one introduced with the new GFS, I will check on that. 
—Jennifer

> 
> Looks great, though!
> 
> Jeff Duda
> 
> On Tue, Jan 20, 2015 at 10:24 AM, Vadlamani Kumar - NOAA Affiliate <vadlamani.kumar at noaa.gov> wrote:
> Jennifer,
> 
> I would appreciate if you can send the script so that I can test it for some specific locations of (our) interest.
> 
> Many thanks.
> 
> Kumar
> 
> On Fri, Jan 16, 2015 at 5:09 PM, Jennifer Adams <jma at cola.iges.org> wrote:
> Dear Users,
> I am working on transitioning my wxmaps.org scripts to use the 0.25-degree GFS output. The first script to test was the meteogram, below is a sample based on today’s 12Z forecast. I thought I would share it here and see if any of you want to give me some feedback while it is sitting on the top of my to-do list. I don’t modify these scripts all that often, so now is the time to express yourself, if you have an opinion. 
> 
> The 3-hourly output goes out to hour 240, so now it’s a 10-day meteogram. That forced me to draw it in an 11x11 page to keep it readable. The image size will be bigger, too. The increased vertical resolution makes the top panel a bit crowded, even though I expanded its vertical real estate by merging the SLP and 1000-500mb thickness panels. I know the cloud cover variables are not of great interest, but please don’t vote to have them removed, I really like the way it appears that the bars in the precip panel are falling out of the clouds. For comparison, here is the link to the 0.5-degree meteogram: http://wxmaps.org/pix2/dcagfs.png. 
> 
> If you are kind and helpful, I will package up the new script with a wrapper to get the needed data from our GDS to make it easier to draw a high-res meteogram for any location. 
> —Jennifer
> 
> 
> <Screen Shot 2015-01-16 at 4.38.11 PM.png>
> --
> Jennifer M. Adams
> Center for Ocean-Land-Atmosphere Studies (COLA)
> 111 Research Hall, Mail Stop 2B3
> George Mason University
> 4400 University Drive
> Fairfax, VA 22030 
> 
> 
> 
> 
> 
> 
> _______________________________________________
> gradsusr mailing list
> gradsusr at gradsusr.org
> http://gradsusr.org/mailman/listinfo/gradsusr
> 
> 
> 
> 
> -- 
> Vadlamani B. Kumar, Ph.D.
> Contract Scientist
> INNOVIM, LLC & NOAA/NWS/NCEP/CPC
> Room# 3158 
> NOAA Center for Weather and Climate Prediction
> 5830 University Research Ct, College Park MD 20740
> Phone: 301-683-3462
> email: vadlamani.kumar at noaa.gov
> 
> _______________________________________________
> gradsusr mailing list
> gradsusr at gradsusr.org
> http://gradsusr.org/mailman/listinfo/gradsusr
> 
> 
> 
> 
> -- 
> Jeff Duda
> Graduate research assistant
> University of Oklahoma School of Meteorology
> Center for Analysis and Prediction of Storms
> _______________________________________________
> gradsusr mailing list
> gradsusr at gradsusr.org
> http://gradsusr.org/mailman/listinfo/gradsusr

--
Jennifer M. Adams
Center for Ocean-Land-Atmosphere Studies (COLA)
111 Research Hall, Mail Stop 2B3
George Mason University
4400 University Drive
Fairfax, VA 22030 





-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://gradsusr.org/pipermail/gradsusr/attachments/20150120/dd056d53/attachment.html