[ncl-talk] zonal_mpsi

[Chathurika]

Many many thanks for the reply.




How can I get the surface pressure if I was given meridional wind velocity.  Surface pressure is not always 10,000pa. 

So how can I get this ps which is mentioned in  http://www.ncl.ucar.edu/Document/Functions/Built-in/zonal_mpsi.shtml




Thanks again 

-----Original Messages-----
From:"Soma Roy" <somaroy892 at gmail.com>
Sent Time:2021-05-21 03:21:15 (Friday)
To: Chathurika <chatu at scsio.ac.cn>
Cc: ncl-talk <ncl-talk at ucar.edu>
Subject: Re: [ncl-talk] zonal_mpsi


You can mean along longitude or latitude.


Your aim is to reduce 1 dimension from the dataset you are using.


Hope this helps.


Cheers!!
Soma


On Fri, May 21, 2021, 00:48 Chathurika via ncl-talk <ncl-talk at mailman.ucar.edu> wrote:


Dear all,




I want to calculate zonal mean meridional stream function using "zonal_mpsi" function. I have a dataset which is meridional velocity (time, plev, lat, lon). 




I am little bit confused about what is 'ps' (surface pressures).  Same dimensions as velocity but the level and unit must be pa. Could you please tell me what should I use for the ps?




I am sorry about the silly question but please help me.




Many many thanks 

and best regards,

Chathu



WCH_______________________________________________
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Wickramage Chathurika Hemamali
Msc in Physical Oceanography
State Key Laboratory of Tropical Oceanography
South China Sea Institute of Oceanology
University of Chinese Academy of Science
China


Specialized in Oceanography and Marine Geology (Bachelor)
University of Ruhuna
Matara
Sri Lanka


Email : wickramagechathurika at rocketmail.com
chatu at scsio.ac.cn
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