<div dir="ltr">This issue of calling the sst_update and oml at the same time was discussed in my Journal of Climate article:<div><span style="color:rgb(0,0,0);font-family:'Times New Roman',Times,serif;font-size:12px">Mallard, Megan S., Gary M. Lackmann, Anantha Aiyyer, Kevin Hill, 2013: Atlantic Hurricanes and Climate Change. Part I: Experimental Design and Isolation of Thermodynamic Effects. </span><i style="color:rgb(0,0,0);font-family:'Times New Roman',Times,serif;font-size:12px">J. Climate</i><span style="color:rgb(0,0,0);font-family:'Times New Roman',Times,serif;font-size:12px">, </span><b style="color:rgb(0,0,0);font-family:'Times New Roman',Times,serif;font-size:12px">26</b><span style="color:rgb(0,0,0);font-family:'Times New Roman',Times,serif;font-size:12px">, 4876–4893.</span><br>
<div class="gmail_extra"><br></div><div class="gmail_extra">At least in version 3.0.1.1, these two parts of the model code would overwrite each other's SST fields, so I would not recommend turning them on at the same time. The OML is initialized with the first skin temperature it reads in which is from wrfinput_d01, not wrflowinp_d01. The OML code refers to this field as TML0 and it calculates a new field (TML) as a function of the mechanical mixing of TML0. Later, a new SST is read in from wrflowinp_d01 and this new SST and TML both set the skin temperature over water grid cells at different points in the same timestep. Of coarse, this might have changed in subsequent releases, but I believe this description is still current.</div>
<div class="gmail_extra"><br></div><div class="gmail_extra">A described in article above, I was able to combine the two features by modifying the source code so that every time there was an SST update, I added the OML anomaly from the last 24 to the SST field that had just been read in from wrflowinp and then restarted the OML this new SST. So you can successfully combine them if you do something similar</div>
<div class="gmail_extra"><br></div><div class="gmail_extra">Megan</div><div class="gmail_extra"><br><div class="gmail_quote">On Fri, Mar 14, 2014 at 2:00 PM, <span dir="ltr"><<a href="mailto:wrf-users-request@ucar.edu" target="_blank">wrf-users-request@ucar.edu</a>></span> wrote:<br>
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Today's Topics:<br>
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1. omlcall & sst_update options (Gino Passalacqua)<br>
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Message: 1<br>
Date: Fri, 14 Mar 2014 10:22:11 -0700<br>
From: Gino Passalacqua <<a href="mailto:gpassala@ucsd.edu">gpassala@ucsd.edu</a>><br>
Subject: [Wrf-users] omlcall & sst_update options<br>
To: <a href="mailto:wrf-users@ucar.edu">wrf-users@ucar.edu</a><br>
Message-ID: <<a href="mailto:53233AC3.2030007@ucsd.edu">53233AC3.2030007@ucsd.edu</a>><br>
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<br>
Dear WRF Users,<br>
<br>
I'm trying to understand what exactly happens with the omlcall =1<br>
(Pollard, Rhines and Thompson 1D Ocean Mixed-Layer Model) and<br>
sst_update=1 options for WRF V 3.4.1 .<br>
<br>
From the following tutorial (slide 4):<br>
<br>
<a href="http://www.mmm.ucar.edu/wrf/users/tutor" target="_blank">http://www.mmm.ucar.edu/wrf/users/tutor</a> ... hysics.pdf<br>
<<a href="http://www.mmm.ucar.edu/wrf/users/tutorial/hurricanes/AHW_physics.pdf" target="_blank">http://www.mmm.ucar.edu/wrf/users/tutorial/hurricanes/AHW_physics.pdf</a>><br>
<br>
I understand that the initial temperature the slab mix layer model comes<br>
from SST. So if I have sst_update = 1 as well as omlcall=1 on the same<br>
namelist, I'm assuming that the initial SST comes from the prescribed<br>
SST given by the file and wrflowinp_d0* . Am I right? What happens if<br>
there is not a wrflowinp_d0*? Which initial SST the 1D Ocean Mixed-Layer<br>
Model uses without a wrflowinp_d0* file?<br>
<br>
What happens then (let's say on day # 2 of the simulation) with the SST<br>
that WRF is using as boundary conditions?Is it provided by the 1D Ocean<br>
Mixed-Layer Model and WRF ignores the wrflowinp_d0* files? A combination<br>
of both?<br>
<br>
I have look for information online and manuals but I have not found<br>
anything that is that specific.<br>
<br>
I would really appreciate if somebody could help me understand what is<br>
exactly is happening with this two options as I'm trying to design some<br>
experiments and both options are a key components for them.<br>
<br>
Thank you very much,<br>
<br>
Gino<br>
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End of Wrf-users Digest, Vol 115, Issue 17<br>
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</blockquote></div><br><br clear="all"><div><br></div>-- <br>--------------------------------------------------------------------
<div>Megan S. Mallard, Ph.D.</div>
<div>ORISE Postdoc</div>
<div>US EPA | Office of Research and Development</div>
<div>National Exposure Research Laboratory </div>
<div>Atmospheric Modeling and Analysis Division</div>
<div>Former university email: <a href="mailto:msgentry@ncsu.edu" target="_blank">msgentry@ncsu.edu</a></div>
</div></div></div>