Re: [gembud] virtual potential temperature (theta_v) from surface observations

• To: "Market, Patrick S." <MarketP@xxxxxxxxxxxx>
• Subject: Re: [gembud] virtual potential temperature (theta_v) from surface observations
• From: Russ Schumacher <russ.schumacher@xxxxxxxxxxxxx>
• Date: Fri, 24 Jul 2015 15:30:12 -0600

Pat,

Yeah, seems like one of those questions that as soon as you call tech support, 
suddenly it works. :)  THTV itself works fine now (though I’m certain it didn’t 
when I tried it yesterday), but subtracting 273.15 does not ("Parameter SUB( is 
not calculable.”)  Nonetheless, having it in Kelvin works just fine for what I 
want, so I can roll with that.  Thanks for the help! 

Russ


> On Jul 24, 2015, at 3:17 PM, Market, Patrick S. <MarketP@xxxxxxxxxxxx> wrote:
> 
> Russ,
>  
> Won’t THTV work, less 273.15?
>  
> Pat
> =====================================
> Dr. Patrick S. Market
> Professor of Meteorology and Chair
> Dept. of Soil, Env. & Atmospheric Sciences
> University of Missouri
> 302 ABNR, Columbia, MO  65211
> Voice:  573-882-1496  /  Fax:  573-884-5070
>  
> From: gembud-bounces@xxxxxxxxxxxxxxxx 
> [mailto:gembud-bounces@xxxxxxxxxxxxxxxx] On Behalf Of Russ Schumacher
> Sent: Friday, July 24, 2015 4:08 PM
> To: gembud@xxxxxxxxxxxxxxxx
> Subject: [gembud] virtual potential temperature (theta_v) from surface 
> observations
>  
> Hello gembuds,
>  
> I’m sure there’s an easy solution to this, but I can’t seem to figure it out: 
> is there a way to plot virtual potential temperature from surface 
> observations using sfmap? Virtual temperature, or potential temperature, no 
> problem, but I haven’t been able to get theta_v to work.  I tried using 
> sthc(tvrc,pres) in the call to sfparm, but it doesn’t look right (I think 
> it’s still just plotting theta).  Thanks for any help you can provide!
>  
> Russ
>  
>  
>  
> 
> --
> Russ S. Schumacher
> Assistant Professor
> Department of Atmospheric Science
> Colorado State University
> e-mail: russ.schumacher@xxxxxxxxxxxxx <mailto:russ.schumacher@xxxxxxxxxxxxx>
> phone: 970.491.8084
> web: http://www.atmos.colostate.edu/faculty/schumacher.php 
> <http://www.atmos.colostate.edu/faculty/schumacher.php>

--
Russ S. Schumacher
Assistant Professor
Department of Atmospheric Science
Colorado State University
e-mail: russ.schumacher@xxxxxxxxxxxxx
phone: 970.491.8084
web: http://www.atmos.colostate.edu/faculty/schumacher.php

• References:
  • [gembud] virtual potential temperature (theta_v) from surface observations
    • From: Russ Schumacher
  • Re: [gembud] virtual potential temperature (theta_v) from surface observations
    • From: Market, Patrick S.