Question on model output on z-levels – in #9: CCLM
in #9: CCLM
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<p>
Hello,
</p>
<p>
I have a small question on
<span class="caps">
CCLM
</span>
model output on z-levels (with namelist parameters yvarzl + zlev):
</p>
<p>
I wonder whether these z-levels are specified with respect to
<span class="caps">
MSL
</span>
or with respect to the topography (I suspect these are just flat, so
<span class="caps">
MSL
</span>
?).
</p>
<p>
Follow-up question: If one would desire output at 90m above the surface of a region, then the z-level approach would not be fit for this if these z-levels are with respect to
<span class="caps">
MSL
</span>
(because of the relief). What would be the best alternative to achieve this then instead? When using the height-based hybrid µ coordinate, I would think that specifying the half level heights in such a way that model output is given at about 90m on a model level, could work.
</p>
<p>
Already a big thank you in advance!
<br/>
Best,
<br/>
Ruben
</p>
<p>
Hello,
</p>
<p>
I have a small question on
<span class="caps">
CCLM
</span>
model output on z-levels (with namelist parameters yvarzl + zlev):
</p>
<p>
I wonder whether these z-levels are specified with respect to
<span class="caps">
MSL
</span>
or with respect to the topography (I suspect these are just flat, so
<span class="caps">
MSL
</span>
?).
</p>
<p>
Follow-up question: If one would desire output at 90m above the surface of a region, then the z-level approach would not be fit for this if these z-levels are with respect to
<span class="caps">
MSL
</span>
(because of the relief). What would be the best alternative to achieve this then instead? When using the height-based hybrid µ coordinate, I would think that specifying the half level heights in such a way that model output is given at about 90m on a model level, could work.
</p>
<p>
Already a big thank you in advance!
<br/>
Best,
<br/>
Ruben
</p>
I have a small question on
CCLM
model output on z-levels (with namelist parameters yvarzl + zlev):
I wonder whether these z-levels are specified with respect to
MSL
or with respect to the topography (I suspect these are just flat, so
MSL
?).
Follow-up question: If one would desire output at 90m above the surface of a region, then the z-level approach would not be fit for this if these z-levels are with respect to
MSL
(because of the relief). What would be the best alternative to achieve this then instead? When using the height-based hybrid µ coordinate, I would think that specifying the half level heights in such a way that model output is given at about 90m on a model level, could work.
<p>
Dear Burkhardt,
</p>
<p>
I was not aware of this parameter yet, thanks.
</p>
<p>
And with this parameter equal to .TRUE., I suppose that over sea the ground is just equal to
<span class="caps">
MSL
</span>
then?
</p>
<p>
Best regards,
<br/>
Ruben
</p>
<p>
Dear Burkhardt,
</p>
<p>
I was not aware of this parameter yet, thanks.
</p>
<p>
And with this parameter equal to .TRUE., I suppose that over sea the ground is just equal to
<span class="caps">
MSL
</span>
then?
</p>
<p>
Best regards,
<br/>
Ruben
</p>
Question on model output on z-levels
Hello,
I have a small question on CCLM model output on z-levels (with namelist parameters yvarzl + zlev):
I wonder whether these z-levels are specified with respect to MSL or with respect to the topography (I suspect these are just flat, so MSL ?).
Follow-up question: If one would desire output at 90m above the surface of a region, then the z-level approach would not be fit for this if these z-levels are with respect to MSL (because of the relief). What would be the best alternative to achieve this then instead? When using the height-based hybrid µ coordinate, I would think that specifying the half level heights in such a way that model output is given at about 90m on a model level, could work.
Already a big thank you in advance!
Best,
Ruben
Use
in the gribout.
Dear Burkhardt,
I was not aware of this parameter yet, thanks.
And with this parameter equal to .TRUE., I suppose that over sea the ground is just equal to MSL then?
Best regards,
Ruben
Yes
Ok, thanks a lot!