Dynamique 1 - Laboratoire de Météorologie Dynamique

Dynamique Atmosphérique 1
Vent à l’équilibre
1 Introduction
 


   

 

  

 



 








 

 



 


  



       
1.1 Système de coordonnées, repère local
 

 
 
 



 




   

  
















 

 
 


 



 
 


#






 
  

  


 

 

 

 
 
 
 
 


   
 
 


 
  
 
 

 





 
 #
  􀐞#

         




fix
e






 
 



 




 

 abso
l
ue 




 
 
 

 


 








  

 


 






 
 

 




t
ou
r
nan
t  



 



  

 


 



 

 


r
e
l
a
tiv
e


 
 


     

 
 



 

  
 

 


 







  

 



 


 



 
 

             


 
 



 



 




 

       
 
 
 



  


 




 
 



 





 


 
#
􀐔
 

 
H
C
M
k
i
j
r
a
Pôle
nord
équateur
           
2 Équation du mouvement horizontal
              


#
#


 

 

  






 
 
 
 


 

 
 

  
 

 





 



  


    

 





 



 









 
 





        massiques   
2.1 Forces apparentes
 

 


 



 



 


 





               
2.1.1 Dérivation mathématique
        #
    absolue
      relative 
#
|􀐍 #
|􀐞 #
#

    #
  #
 􀎛
#
􀎀􀎊
􀎛􀐠   
#
􀐍#
􀐞#
#


#
#


 

 
 
 
 
 


 
 
#
􀐞
#
 



vitesse d’entrainement #
􀐑     #
􀐍    
#
􀐍#
􀐞
|􀐞 #
#
􀐞#
#
􀐞#
#

     #
#
#
􀍯#

#
􀐍#
#
􀐞#
#
􀐞􀍯#
 
 

 
 
 
acc
élér
a
ti
on
r
e
l
a
tiv
e
 
 



acc
élér
a
ti
on de Co
ri
o
li
s
 




 
acc
élér
a
ti
on d
en
tr
a
i
nemen
t
#
􀐑
 



  

 


             
2.1.2 Pesanteur et équilibre d’un point posé sur le sol
 

  


 
 

  
 

 

 



        
#
        
#
          




 
 



   


  




 


#
􀐍#
􀐑􀍯􀐞
       
#
􀐑􀍯􀐞#
#

 

 
 

 




 

 
  


 
 

#

#
      
#
􀐑
         
      #
   #
#
#
􀐑  
#
#
#
    



#



 
 


#





 
 



  


 
 

 

 
 

 #
     
Equateur
Pôle
H
C
M
G
g
ae
er
  


 
 

 
 



 







      
2.1.3 Force de Coriolis : mouvement vers l’est
 

 

 
  


 

  
 

 



  
 




 


 


 



   􀍯     
  




 



 
 
 
  
 
  #
#
#
#
􀐑

 

 
 


 

 

􀐍




  
 
           
 
􀍯
􀐍
              
       
                
#


    
        
􀐍   #
 #
     􀐞
􀍯
 􀐑􀍯
   
  


 
 


 






  



 

 

 


 
 

 



 



 
 
 

 
 
 

 
 

 


 



 



 

 
  

                

 

 





 
 



 

 
􀐞


               
2.1.4 Force de Coriolis : mouvement vers le nord
              


 

  

 

 



 
  




            􀐍
     
􀐍
􀐑
       

  


 



 
 




  
   
􀐍
       
  
􀐑
          
 
 
 


 


 


 


 



􀍯

 



#
                   
         
1 / 14 100%
La catégorie de ce document est-elle correcte?
Merci pour votre participation!

Faire une suggestion

Avez-vous trouvé des erreurs dans linterface ou les textes ? Ou savez-vous comment améliorer linterface utilisateur de StudyLib ? Nhésitez pas à envoyer vos suggestions. Cest très important pour nous !