<div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr">Hello,<div><br></div><div>    We conduct idealized simulations to study atmospheric convection near the north pole.  To avoid the singularity problem in spherical coordinates, we are interested in curvilinear orthogonal coordinates in MITgcm.  I don't need blank tile and do not include exch2 in cope/packages.conf.  I use MPI to expedite running processes.  If I didn't specify <span style="font-size:small;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline">delX and

<span style="text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline">delY<span> or</span></span>
</span>gave the delX and delY below in the data file, I got normal end after execution the mitgcmuv.  When giving <span style="font-size:small;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline">delX=360*0.25,</span>


<span style="font-size:small;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline">delY=360*0.25,</span> I got the error message looking for <span style="font-size:small;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline">tile002.mitgrid as the following.</span>  How to explain these?  <span style="font-size:small;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline">In the manual it said the grid spacing can not be set via the namelist; instead, the grid descriptors are read from data files, one for each descriptor.  The forcing data is Tinit.bin so we don't need extra external forcing as exf.package.  I wonder what is the right way to give <span style="text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline">delX=360*0.25,</span><span style="text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline"><span> </span></span><span style="text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline">delY=360*0.25</span> in <span style="text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline">curvilinear coordinates in MITgcm?</span><span>  </span></span><span style="font-size:small;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline"><span style="text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline"> <span> </span></span>

</span></div><div><span style="font-size:small;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline"><span style="text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline"><span><br></span></span></span></div><div><span style="background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline"><span style="text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline">forrtl: severe (29): file not found, unit 9, file /project/6001267/MITgcm/MITgcm_c66k/verification/rotating_tank2/run_n_360/tile002.mitgrid<br></span></span></div><div><span style="font-size:small;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline"><span style="text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline"><span><br></span></span></span></div><div><span style="background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline"><span style="text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline"><div># Gridding parameters</div><div> &PARM04</div><div> usingCurvilinearGrid=.TRUE.,</div><div> deepAtmosphere=.TRUE.,</div><div> rSphere=60000.E3,</div><div> delR=50*200.E3,</div><div> delX=320*0.25,</div><div> delY=320*0.25,</div><div> ygOrigin=0.,</div><div> &</div><div style="font-size:small"><br></div><div style="font-size:small">    Thanks much,</div><div style="font-size:small"><br></div><div style="font-size:small">                         Yi-Chih</div></span></span></div></div></div></div></div></div></div></div></div>