Good morning,
After using zyGrib for some time after the last version appeared, I would like to thank the authors for their work. The program is spectacular.
I would like to suggest now some new features that I think would significantly improve the program, particularly for those using it to learn and/or teach Meteorology. Since you have wind vectors at any level it should be possible to compute and plot maps of convergence, divergence and relative and absolute vorticity at every atmospheric level using finite differencing of u and v (the horizontal wind components) and adding the planetary vorticityy to the relative vorticity computed in that way to obtain the absolute one. That would be very hepful to complete the picture of the atmosphere that zyGrib already provides.
Thanks again for your continuos work with this wonderful program.
Tropelio
Convergence, divergence, and vorticity
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Il ne faut surtout pas oublier les mots magiques: bonjour, salut, merci, etc.
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Here we speak french or english, as we want, as we can, but we never forget that we discuss between humans.
Do not forget the magic words: hello, hi, thank you, etc.
Rude messages are rejected and remain unanswered.
It is often necessary to be patient because there are many other activities even more exciting in our life.
![Image](https://zygrib.org/img/fr.png)
Il ne faut surtout pas oublier les mots magiques: bonjour, salut, merci, etc.
Les messages impolis sont rejetés et restent sans réponse.
Il faut souvent être patient, car il y a plein d'autres activités encore plus passionantes dans notre vie.
![Image](https://zygrib.org/img/uk.png)
Do not forget the magic words: hello, hi, thank you, etc.
Rude messages are rejected and remain unanswered.
It is often necessary to be patient because there are many other activities even more exciting in our life.
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Re: Convergence, divergence, and vorticity
Hi,
Very good idea, but it would be a very heavy job to do it.
Perhaps in the future...
Very good idea, but it would be a very heavy job to do it.
Perhaps in the future...
A+
Jacques
Jacques
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