zyGrib

zyGrib's forum
Nous sommes actuellement le 14 Nov 2018 04:39

Le fuseau horaire est UTC [Heure d’été]




Publier un nouveau sujet Répondre au sujet  [ 6 message(s) ] 
Auteur Message
 Sujet du message : Stability indices
Message Publié : 14 Août 2012 12:39 
Hors-ligne

Inscription : 06 Mars 2009 17:47
Message(s) : 34
Good afternoon,

I have been using the new version 6.0 and I must say that the new thermodynamic diagrams are fantastic and very useful. I am very happy with them, particularly because including this was my suggestion long time ago. So, thank you very much!

It is nice to read that the inclusion of wind forecast at different hights is planned for future work: wind shear with height is a very important variable to take into account in weather forecasting. My suggestion is to include also the computation of different stability indices (not only CAPE and CIN). These should not be too difficult once we have the thermodynamic diagram. The definition of different stability indices can be found here, for example:

http://weather.uwyo.edu/upperair/indices.html

So including the values of these indices together with the thermodynamic diagram and, of course, the wind forecast at different levels would make this a very valuable tool.

Thanks a lot for your continuos work with this fantastic program. I shall send you an updated Spanish translation in September.

Kind regards,
Tropelio.


Haut
 Profil  
 
 Sujet du message : Re: Stability indices
Message Publié : 16 Août 2012 23:47 
Hors-ligne
Site Admin

Inscription : 19 Jan 2009 00:22
Message(s) : 579
Hi,
For you, what are the most important indices ?

_________________
A+
Jacques


Haut
 Profil  
 
 Sujet du message : Re: Stability indices
Message Publié : 05 Sep 2012 11:45 
Hors-ligne

Inscription : 06 Mars 2009 17:47
Message(s) : 34
Hi,

Sorry for the delay in answering your question. I have been disconected for a while.

Well, I would say that since stability indeces are mostly empirical indices developed based upon experience, all of then are useful when analysing the atmospheric stability conditions in a particular location. But to give yoy a concrete answer, I would say that the set included in the link I mentioned before,

http://weather.uwyo.edu/upperair/indices.html

would make a perfect set.

Thanks again for the effort.

Kind regards,
Tropelio


Haut
 Profil  
 
 Sujet du message : Re: Stability indices
Message Publié : 06 Sep 2012 07:44 
Hors-ligne
Site Admin

Inscription : 19 Jan 2009 00:22
Message(s) : 579
Hi,
I know that, but my question was: "For you, what are the most important indices ?"

I do not have time to do everything at once.

_________________
A+
Jacques


Haut
 Profil  
 
 Sujet du message : Re: Stability indices
Message Publié : 06 Sep 2012 10:43 
Hors-ligne

Inscription : 06 Mars 2009 17:47
Message(s) : 34
Hi,

I see. Well, appart from CAPE and CIN that are already included in zyGrib, I would choose the following:

Lifted Index
Showalter Index
K index
SWEAT (Severe Weather Threat).

Kind regards,
Tropelio


Haut
 Profil  
 
 Sujet du message : Re: Stability indices
Message Publié : 06 Sep 2012 14:14 
Hors-ligne
Site Admin

Inscription : 19 Jan 2009 00:22
Message(s) : 579
Hi,
Tropelio a écrit :
Lifted Index
Showalter Index
K index
SWEAT (Severe Weather Threat)

Ok, I will begin with these four there.

_________________
A+
Jacques


Haut
 Profil  
 
Afficher les messages publiés depuis :  Trier par  
Publier un nouveau sujet Répondre au sujet  [ 6 message(s) ] 

Le fuseau horaire est UTC [Heure d’été]


Qui est en ligne ?

Utilisateur(s) parcourant ce forum : Aucun utilisateur inscrit et 1 invité


Vous ne pouvez pas publier de nouveaux sujets dans ce forum
Vous ne pouvez pas répondre aux sujets dans ce forum
Vous ne pouvez pas éditer vos messages dans ce forum
Vous ne pouvez pas supprimer vos messages dans ce forum
Vous ne pouvez pas insérer de pièces jointes dans ce forum

Aller vers :  
cron
Powered by phpBB © 2000, 2002, 2005, 2007 phpBB Group
Traduit en français par Maël Soucaze.