No subject


Mon Jun 29 05:15:58 EDT 2015 

an equilibrium comparable to
observations.
However, for some reasons, after few decades of SPIN-UP runs, the DIC field=
s disappeared leaving all NaNs.
Thinking that this could be related to the salinity relaxation time, I have=
 doubled this parameter with a very
little variation in the final outputs.
Any additional suggestions?
Thanks in advance
Tobia
Tobia Tudino
tt282 at exeter.ac.uk<mailto:tt282 at exeter.ac.uk>
PhD Student
Geography
College of Life and Environmental Science
Skype: tobia.tudino
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Hi Steph,&nbsp;
<div class=3D""><br class=3D"">
</div>
<div class=3D"">thanks for the suggestions. I have checked at the other out=
puts and the salinity seems the only one that reaches unexpected low values=
 in winter, but with a slower time scale in respect to the DIC disappearanc=
e.&nbsp;</div>
<div class=3D"">However, I have checked the input and they seem fine.</div>
<div class=3D""><br class=3D"">
</div>
<div class=3D"">Regards,</div>
<div class=3D""><br class=3D"">
</div>
<div class=3D"">Tobia</div>
<div class=3D""><br class=3D"">
<div apple-content-edited=3D"true" class=3D"">
<div style=3D"color: rgb(0, 0, 0);  font-style: normal; font-variant: norma=
l; font-weight: normal; letter-spacing: normal; line-height: normal; orphan=
s: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; whi=
te-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: =
0px;" class=3D"">
<div style=3D"word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line=
-break: after-white-space;" class=3D"">
<font face=3D"BankGothic-Light" class=3D"">Tobia Tudino</font></div>
<font face=3D"BankGothic-Light" style=3D"font-family: Helvetica;" class=3D"=
"><a href=3D"mailto:tt282 at exeter.ac.uk" class=3D"">tt282 at exeter.ac.uk</a><b=
r class=3D"">
</font>
<div style=3D"word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line=
-break: after-white-space;" class=3D"">
<div class=3D""><font face=3D"BankGothic-Light" class=3D"">PhD Student</fon=
t></div>
<div class=3D""><font face=3D"BankGothic-Light" class=3D"">Geography</font>=
</div>
<div class=3D""><font face=3D"BankGothic-Light" class=3D"">College of Life =
and Environmental Science</font></div>
<div class=3D""><font face=3D"BankGothic-Light" class=3D"">Skype: tobia.tud=
ino</font></div>
</div>
</div>
<div style=3D"color: rgb(0, 0, 0); font-family: Helvetica; font-style: norm=
al; font-variant: normal; font-weight: normal; letter-spacing: normal; line=
-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; te=
xt-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -web=
kit-text-stroke-width: 0px;" class=3D"">
<span style=3D"color: rgb(0, 0, 0); font-family: Helvetica; font-style: nor=
mal; font-variant: normal; font-weight: normal; letter-spacing: normal; lin=
e-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; t=
ext-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -we=
bkit-text-stroke-width: 0px;"><br class=3D"Apple-interchange-newline" style=
=3D"color: rgb(0, 0, 0); font-family: Helvetica; font-style: normal; font-v=
ariant: normal; font-weight: normal; letter-spacing: normal; line-height: n=
ormal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transfo=
rm: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-s=
troke-width: 0px;">
<br class=3D"Apple-interchange-newline" style=3D"color: rgb(0, 0, 0); font-=
family: Helvetica; font-style: normal; font-variant: normal; font-weight: n=
ormal; letter-spacing: normal; line-height: normal; orphans: 2; text-align:=
 -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal;=
 widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px;">
</span></div>
</div>
<br class=3D"">
<div>
<blockquote type=3D"cite" class=3D"">
<div class=3D"">On 25 Aug 2015, at 19:46, Stephanie Dutkiewicz &lt;<a href=
=3D"mailto:stephd at ocean.mit.edu" class=3D"">stephd at ocean.mit.edu</a>&gt; wr=
ote:</div>
<br class=3D"Apple-interchange-newline">
<div class=3D""><br class=3D"">
Hi Tobia -<br class=3D"">
Usually NaN in the DIC fields comes from the pH solver struggling with T or=
 S reaching strange values -- so worth check both those fields to see if th=
ere is something wrong there.<br class=3D"">
<br class=3D"">
You can try defining DIC_BOUNDS in DIC_OPTIONS.h -- this is a hack to try a=
nd make sure that the values going into the pH solver are within &quot;reas=
onable bounds&quot; -- but it is a hack -- it is worth checking why the fie=
lds (T,S or any of the DIC, ALK etc) are going
 out of bound as this might suggest other problems in the simulation.<br cl=
ass=3D"">
<br class=3D"">
steph<br class=3D"">
<br class=3D"">
On Tue, 25 Aug 2015, Tudino, Tobia wrote:<br class=3D"">
<br class=3D"">
<blockquote type=3D"cite" class=3D"">Dear all,<br class=3D"">
I am currently run the MITgcm at a 2.8 resolution with the GCHEM package in=
cluded. This run is based on a<br class=3D"">
previous setting constructed on an idealised forcing field.&nbsp;<br class=
=3D"">

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