<p style="font-family:Arial;">
Many many thanks for the reply.
</p>
<p style="font-family:Arial;">
<br>
</p>
<p style="font-family:Arial;">
How can I get the surface pressure if I was given meridional wind velocity. Surface pressure is not always 10,000pa.
</p>
<p style="font-family:Arial;">
So how can I get this ps which is mentioned in <span style="font-family:Arial;">http://www.ncl.ucar.edu/Document/Functions/Built-in/zonal_mpsi.shtml</span>
</p>
<p>
<br>
</p>
<p>
Thanks again
</p>
<blockquote name="replyContent" class="ReferenceQuote" style="font-family:Arial;padding-left:5px;margin-left:5px;border-left:2px solid #B6B6B6;margin-right:0px;">
-----Original Messages-----<br>
<b>From:</b><span id="rc_from">"Soma Roy" <somaroy892@gmail.com></span><br>
<b>Sent Time:</b><span id="rc_senttime">2021-05-21 03:21:15 (Friday)</span><br>
<b>To:</b> Chathurika <chatu@scsio.ac.cn><br>
<b>Cc:</b> ncl-talk <ncl-talk@ucar.edu><br>
<b>Subject:</b> Re: [ncl-talk] zonal_mpsi<br>
<br>
<div dir="auto">
You can mean along longitude or latitude.
<div dir="auto">
<br>
</div>
<div dir="auto">
Your aim is to reduce 1 dimension from the dataset you are using.
<div dir="auto">
<br>
</div>
<div dir="auto">
Hope this helps.
</div>
<div dir="auto">
<br>
</div>
<div dir="auto">
Cheers!!
</div>
<div dir="auto">
Soma
</div>
</div>
</div>
<br>
<div class="gmail_quote">
<div dir="ltr" class="gmail_attr">
On Fri, May 21, 2021, 00:48 Chathurika via ncl-talk <<a href="mailto:ncl-talk@mailman.ucar.edu">ncl-talk@mailman.ucar.edu</a>> wrote:<br>
</div>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex;">
<p style="font-family:Arial;">
<span style="font-family:Georgia;font-size:16px;">Dear all,</span>
</p>
<p style="font-family:Arial;">
<span style="font-family:Georgia;font-size:16px;"><br>
</span>
</p>
<p style="font-family:Arial;">
<span style="font-family:Georgia;font-size:16px;">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). </span>
</p>
<p>
<span style="font-family:Georgia;"><span style="font-size:16px;"><br>
</span></span>
</p>
<p>
<span style="font-family:Georgia;"><span style="font-size:16px;">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?</span></span>
</p>
<p>
<span style="font-family:Georgia;"><span style="font-size:16px;"><br>
</span></span>
</p>
<p>
<span style="font-family:Georgia;"><span style="font-size:16px;">I am sorry about the silly question but please help me.</span></span>
</p>
<p>
<span style="font-family:Georgia;"><span style="font-size:16px;"><br>
</span></span>
</p>
<p>
<span style="font-family:Georgia;"><span style="font-size:16px;">Many many thanks </span></span>
</p>
<p>
<span style="font-family:Georgia;"><span style="font-size:16px;">and best regards,</span></span>
</p>
Chathu<br>
<br>
<span style="font-family:Arial;">
<hr align="left" style="margin:0.5em 0;width:10em;height:1px;background-color:#999;border:none;">
<blockquote style="margin:0px 0px 0px 40px;padding:0px;font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;font-size:small;font-variant-ligatures:normal;border:none;">
<span style="font-style:italic;font-size:medium;"><br>
</span>
</blockquote>
<blockquote style="margin:0px 0px 0px 40px;padding:0px;font-family:"Helvetica Neue",Helvetica,Arial,sans-serif;font-size:small;font-variant-ligatures:normal;border:none;">
<strong>WCH</strong>
</blockquote>
</span>_______________________________________________<br>
ncl-talk mailing list<br>
<a href="mailto:ncl-talk@mailman.ucar.edu" target="_blank" rel="noreferrer">ncl-talk@mailman.ucar.edu</a><br>
List instructions, subscriber options, unsubscribe:<br>
<a href="https://mailman.ucar.edu/mailman/listinfo/ncl-talk" rel="noreferrer noreferrer" target="_blank">https://mailman.ucar.edu/mailman/listinfo/ncl-talk</a>
</blockquote>
</div>
</blockquote>
<br>
<br>
<br>
<span style="font-family:Arial;" class="spnEditorSign">
<hr class="signature-separator" align="left" style="margin:0.5em 0;width:10em;height:1px;background-color:#999;border:none;">
<blockquote style="margin:0px 0px 0px 40px;padding:0px;font-family:"Helvetica Neue", Helvetica, Arial, sans-serif;font-size:small;font-variant-ligatures:normal;orphans:2;widows:2;border:none;">
<span style="font-style:italic;font-size:medium;"><br>
</span>
</blockquote>
<blockquote style="margin:0px 0px 0px 40px;padding:0px;font-family:"Helvetica Neue", Helvetica, Arial, sans-serif;font-size:small;font-variant-ligatures:normal;orphans:2;widows:2;border:none;">
<span style="font-style:italic;font-size:medium;"><br>
</span>
</blockquote>
<blockquote style="margin:0px 0px 0px 40px;padding:0px;font-family:"Helvetica Neue", Helvetica, Arial, sans-serif;font-variant-ligatures:normal;orphans:2;widows:2;border:none;">
<span style="font-style:italic;"><span style="font-size:x-small;">Wickramage Chathurika Hemamali</span></span>
<div>
<span style="font-style:italic;"><span style="font-size:x-small;">Msc in Physical Oceanography</span></span>
</div>
<div>
<div id="ydpc6aa4ef1yui_3_16_0_ym19_1_1496286059659_2251">
<span style="font-style:italic;"><span style="font-size:x-small;">State Key Laboratory of Tropical Oceanography</span></span>
</div>
</div>
<div>
<div id="ydpc6aa4ef1yui_3_16_0_ym19_1_1496286059659_2252">
<span style="font-style:italic;"><span style="font-size:x-small;">South China Sea Institute of Oceanology</span></span>
</div>
<div id="ydpc6aa4ef1yui_3_16_0_ym19_1_1496286059659_2252">
<span style="font-style:italic;"><span style="font-size:x-small;">University of Chinese Academy of Science</span></span>
</div>
</div>
<div>
<div id="ydpc6aa4ef1yui_3_16_0_ym19_1_1496286059659_2264">
<span style="font-style:italic;"><span style="font-size:x-small;">China</span></span>
</div>
</div>
<div id="ydpc6aa4ef1yui_3_16_0_ym19_1_1496286059659_2264" style="font-size:small;">
<span style="font-style:italic;font-size:medium;"><br>
</span>
</div>
<div id="ydpc6aa4ef1yui_3_16_0_ym19_1_1496286059659_2264" style="font-size:small;">
<i><span style="font-size:xx-small;">Specialized in Oceanography and Marine Geology (Bachelor)</span></i>
</div>
<div id="ydpc6aa4ef1yui_3_16_0_ym19_1_1496286059659_2264" style="font-size:small;">
<i><span style="font-size:xx-small;">University of Ruhuna</span></i>
</div>
<div id="ydpc6aa4ef1yui_3_16_0_ym19_1_1496286059659_2264" style="font-size:small;">
<i><span style="font-size:xx-small;">Matara</span></i>
</div>
<div id="ydpc6aa4ef1yui_3_16_0_ym19_1_1496286059659_2264" style="font-size:small;">
<i><span style="font-size:xx-small;">Sri Lanka</span></i>
</div>
<div id="ydpc6aa4ef1yui_3_16_0_ym19_1_1496286059659_2264" style="font-size:small;">
<span style="font-style:italic;font-size:medium;"><br>
</span>
</div>
<div id="ydpc6aa4ef1yui_3_16_0_ym19_1_1496286059659_2264" style="font-size:small;">
<span style="font-style:italic;font-size:medium;">Email : <a target="_blank">wickramagechathurika@rocketmail.com</a></span>
</div>
<div id="ydpc6aa4ef1yui_3_16_0_ym19_1_1496286059659_2264" style="font-size:small;">
<span style="font-style:italic;font-size:medium;"><a target="_blank">chatu@scsio.ac.cn</a></span>
</div>
</blockquote>
</span>