<div dir="ltr"><div><div><div><div><div><div><div>I think you would have to ask <a href="mailto:wrf-help@ucar.edu">wrf-help@ucar.edu</a><br><br></div>I don't think this is an NCL-issue per-se. NCL is providing an interface to fortran subroutines provided by the WRF project. <br><br></div>You state that the "latitude off by ~1 deg" ? Not sure how you get this.<br><br>I'm not a WRF user/expert so I can not be of much further help.<br><br>==<br></div>Yes ... people have calculated gradients on curvilinear grids but they use ESMF regridding to interpolate to a rectilinear grid; perform the gradient calculations and then reinterpolate back to the original curvilinear grid. <br><br></div><div>Not gradients related per se but it give you an idea of how to proceed ...<br></div><div><br><a href="https://www.ncl.ucar.edu/Applications/ESMF.shtml">https://www.ncl.ucar.edu/Applications/ESMF.shtml</a><br></div>Example 5<br></div>Example 29<br><br></div>Example 30 is for a NARR grid (curvilinear). It illustrates that the errors of back and forth interpolation are small.: original values are 200-300 .... differeines are 0.05. That's pretty good.<br><br></div>D<br><div><div><div><div><br><br><div><br><br></div></div></div></div></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Thu, Apr 21, 2016 at 9:55 AM, Ryan Connelly <span dir="ltr"><<a href="mailto:rconne01@gmail.com" target="_blank">rconne01@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Yeah that makes sense why wrf_user_intrp3d would fail. Your second suggestion got me lat/lon minima and maxima that are close, but not close enough, to the corners of my domain (latitude off by ~1 deg).<div><br></div><div>I'm starting to think this isn't physically possible in NCL. The fact that WRF is a curvilinear grid means that I couldn't even manually code up conditionals and loops to calculate the gradient components, right? Since advancing from i=2 to i=4, e.g., isn't moving due west-east.</div><div><br></div><div><div>Has no one ever computed advections of WRF variables in NCL before?</div><div><div><br></div><div><br></div></div></div></div><div class="HOEnZb"><div class="h5"><div class="gmail_extra"><br><div class="gmail_quote">On Wed, Apr 20, 2016 at 6:30 PM, Dennis Shea <span dir="ltr"><<a href="mailto:shea@ucar.edu" target="_blank">shea@ucar.edu</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Likely, I was not clear. The following file is needed.<br><div><br>wrfout_d01_2016-02-04_12:00:00<br><br>===<br></div><div>You should look at:<br> lon_plane = wrf_user_intrp3d(lon,p,"h",pressure,0.,False)<br> lat_plane = wrf_user_intrp3d(lat,p,"h",pressure,0.,False)<br><br></div><div>printVarSummary(lon_plane)<br></div><div>printMinMax(lon_plane,0)<br><br><div>printVarSummary(lat_plane)<br></div>printMinMax(lat_plane,0)<br><br></div><div>Really, since lat/lon have no vertical extent .... how can you use wrf_user_intrp3d?<br><a href="https://www.ncl.ucar.edu/Document/Functions/WRF_arw/wrf_user_intrp3d.shtml" target="_blank">https://www.ncl.ucar.edu/Document/Functions/WRF_arw/wrf_user_intrp3d.shtml</a><br><br></div><div>The 1st arguments is:<br><br><em>var3d</em>
<p>Data on model levels that will be interpolated. The rightmost dimensions of this array is
<em>nz</em> x <em>ny</em> x <em>nx</em>.
</p><br></div><div>I am not a WRF user ... perhaps someone more knowledgeable can provide an answer? <br><br></div><div>Likely, you could 'trick' lat/lon to multiple dimensions via<br><br></div><div> lat3d = conform(p, lat, (/1,2/))<br></div><div> lon3d = conform(p, lon, (/1,2/))<br><br> lon_plane = wrf_user_intrp3d(lon3d,p,"h",pressure,0.,False)<br> lat_plane = wrf_user_intrp3d(lat3d,p,"h",pressure,0.,False)<br><br></div><div><br></div><div><br><br>===<br>re: "realistic values" for dTdx instead of inf's:<div><br></div><div><div><font face="monospace, monospace">(0)<span style="white-space:pre-wrap"> </span>min=-15.1425 max=18.5633</font></div><div><font face="monospace, monospace">(0)<span style="white-space:pre-wrap"> </span>min=-24.1597 max=15.1911<br><br>===<br></font></div><div><font face="monospace, monospace">The actual gradients will likely *not* be these nice numbers.<br><br></font></div><div><font face="monospace, monospace">The (say): (T(n+1)-T(n-1))/(LAT(n+1)-LAT(n-1))<br><br> (20-10)/(15-12.5)<br><br></font></div><div><font face="monospace, monospace">would yield 10/2.5 = 4 [degC/degLat] or degF in your case<br><br></font></div><div><font face="monospace, monospace">however, most gradients are (say) degC/m_or_km<br><br></font></div><div><font face="monospace, monospace">so that 2.5 degrees of lat would have to be converted to m or km.<br><br>===<br></font></div><div><font face="monospace, monospace">You are aware that the WRF grid is curvilinear ... not rectilinear?<br></font></div><div><font face="monospace, monospace"><br></font></div></div><br></div></div><div><div><div class="gmail_extra"><br><div class="gmail_quote">On Wed, Apr 20, 2016 at 11:49 AM, Ryan Connelly <span dir="ltr"><<a href="mailto:rconne01@gmail.com" target="_blank">rconne01@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Hi Dennis,<div><br></div><div>My file is now in ../incoming/wrf_temp_adv_rconne01.ncl.</div><div><br></div><div>It doesn't like dimension reduction because the resulting argument isn't the right size:</div><div><br></div><div><div><font face="monospace, monospace">fatal:center_finite_diff_n: r must either be a scalar, a 1D array the same length as the dim-th dimemsion of q, or the same size as q</font></div></div><div><br></div><div><br></div><div>It also throws a fatal on the declaration of lon_plane and/or lat_plane:</div><div><br></div><div><div><font face="monospace, monospace">fatal:Subscript out of range, error in subscript #0</font></div><div><font face="monospace, monospace">fatal:An error occurred reading dims</font></div><div><font face="monospace, monospace">fatal:["Execute.c":8128]:Execute: Error occurred at or near line 224 in file $NCARG_ROOT/lib/ncarg/nclscripts/wrf/WRFUserARW.ncl</font></div><div><font face="monospace, monospace"><br></font></div><div><font face="monospace, monospace">fatal:["Execute.c":8128]:Execute: Error occurred at or near line 97 in file wrf_temp_adv.ncl</font></div></div><div><br></div><div><br></div><div>My best success so far has been with your first suggestion, merely changing the last arg of the dTDx declaration from 0 to 1, which gave me realistic values for dTdx instead of inf's:</div><div><br></div><div><div><font face="monospace, monospace">(0)<span style="white-space:pre-wrap"> </span>min=-15.1425 max=18.5633</font></div><div><font face="monospace, monospace">(0)<span style="white-space:pre-wrap"> </span>min=-24.1597 max=15.1911</font></div></div><div><br></div><div>But that ultimately still hangs up, though interestingly enough, it now gets one step farther. Before, wrf_contour was where it stopped. Now, it gets past wrf_contour, but fails on plot=.</div><div><br></div><div>Thanks,</div><div>Ryan</div></div><div><div><div class="gmail_extra"><br><div class="gmail_quote">On Wed, Apr 20, 2016 at 1:19 PM, Ryan Connelly <span dir="ltr"><<a href="mailto:rconne01@gmail.com" target="_blank">rconne01@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Hi Mary,<div><br></div><div>That shows that dTdx is the problem. (dTdx is first, dTdy second:)</div><div><br></div><div><div><font face="monospace, monospace">(0)<span style="white-space:pre-wrap"> </span>min=-inf max=inf</font></div><div><font face="monospace, monospace">(0)<span style="white-space:pre-wrap"> </span>min=-24.1597 max=15.1911</font></div><br>I'll work on Dennis's suggestion now.</div><span><font color="#888888"><div><br></div><div>Ryan</div></font></span></div><div><div><div class="gmail_extra"><br><div class="gmail_quote">On Wed, Apr 20, 2016 at 11:59 AM, Dennis Shea <span dir="ltr"><<a href="mailto:shea@ucar.edu" target="_blank">shea@ucar.edu</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div><div><div><div>NOTE: I have not looked at this in detail.<br><br>[1] <br></div><div>You could not use 'advect_variable' because it requires "[t]he array <b>must be global and ordered south to north</b>." Also, this assumes a rectilinear grid (eg: fixed or gaussian)<br><br></div><div>Your data are not global :-(<br></div><div>Yourhorizontal grid is not rectilinear.<br></div><div><br></div><div>Note: I could change ''advect_variable" which uses spherical harmonics (hence, the global grid requirement) to derive the horizontal and latitudinal gradients tusing the 6.4.0<br> <a href="https://www.ncl.ucar.edu/Document/Functions/Contributed/grad_latlon_cfd.shtml" target="_blank">https://www.ncl.ucar.edu/Document/Functions/Contributed/grad_latlon_cfd.shtml</a><br></div><div>BUT that would take a day or two. <br> </div><div>[2]<br>center_finite_diff "the issue" .. yes and no<br><br></div>The error occurs in center_finite_diff but the issue is, I speculate, the arguments. Specifically, the use of lat and lon<br><br>====<span><br><div><font face="monospace, monospace"> </font><span style="font-family:monospace,monospace">lon = wrf_user_getvar(a,"lon",it) <br></span></div><div><font face="monospace, monospace"> lat = wrf_user_getvar(a,"lat",it)</font></div></span><font face="monospace, monospace"><span><div><br></div><div>;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;</div><div>; Interpolate to isobaric planes</div><div><br></div><div> pressure = 850.</div><div><br></div><div> tc_plane = wrf_user_intrp3d(tc,p,"h",pressure,0.,False)</div><div> z_plane = wrf_user_intrp3d(z_dec,p,"h",pressure,0.,False)</div><div> u_plane = wrf_user_intrp3d( u,p,"h",pressure,0.,False)</div><div> v_plane = wrf_user_intrp3d( v,p,"h",pressure,0.,False)</div><div><br></div><div><br></div><div>; Define variables needed to calculate temp advection<br></div><div><br></div><div> dTdx = center_finite_diff_n(tc_plane,lon,False,0,0)</div><div> dTdy = center_finite_diff_n(tc_plane,lat,False,0,0)</div></span><div>===<br></div></font><br></div>Maybe, <br><br><font face="monospace, monospace"><div><br></div><div> dTdx = center_finite_diff_n(tc_plane,lon,False,0,1) ; <==<br></div><div> dTdy = center_finite_diff_n(tc_plane,lat,False,0,0)<br><br></div></font>Or<font face="monospace, monospace"> [281] x [353]=>nlat,mlon<br><br></font> <font face="monospace, monospace">dTdx = center_finite_diff_n(tc_plane,lon(nlat/2,:),False,0,0)<br> </font><font face="monospace, monospace">dTdy = center_finite_diff_n(tc_plane,lat(:,mlon/2),False,0,0)<br><br></font></div><font face="monospace, monospace">Note that NCL's 'dimension reduction' (elimination of degenerate dimensions), </font><font face="monospace, monospace">lon(nlat/2,:) and </font><font face="monospace, monospace">lat(:,mlon/2) are one dimensional.<br></font></div><font face="monospace, monospace">Use printVarSummary( </font><font face="monospace, monospace">lon(nlat/2,:) ) to verify<br></font><div><div><div> <br>[3]<br><br></div><div>[2] is a thumb in the dike approach. I think it would be best (if possible) to calculate<br><br></div><div> lon_plane = <br></div><div> lat_plane =<br><br> <font face="monospace, monospace">dTdx = center_finite_diff_n(tc_plane,lon_plane,False,0,0)<br> </font><font face="monospace, monospace">dTdy = center_finite_diff_n(tc_plane,lat_plane,False,0,0)<br><br>[4]<br></font></div><div><font face="monospace, monospace">Maybe you could send a sample filw (one only) to<br><br></font></div><div><font face="monospace, monospace">ftp <a href="http://ftp.cgd.ucar.edu" target="_blank">ftp.cgd.ucar.edu</a><br></font></div><div><font face="monospace, monospace">anonymous<br></font></div><div><font face="monospace, monospace">your_email<br></font></div><div><font face="monospace, monospace">cd incoming<br></font></div><div><font face="monospace, monospace">put .....<br></font></div><div><font face="monospace, monospace">quit<br><br></font></div><div><font face="monospace, monospace">then let ncl_talk know the name of the file.<br></font></div><div><font face="monospace, monospace"></font></div></div></div></div><div><div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Apr 19, 2016 at 4:21 PM, Mary Haley <span dir="ltr"><<a href="mailto:haley@ucar.edu" target="_blank">haley@ucar.edu</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div class="gmail_default" style="font-size:small">Hi Ryan,</div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small">That makes sense why you can't upgrade.</div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small">As for the "inf", this is definitely an issue. To further determine where the problem is, I suggest doing a printMinMax on the individual variables in the calculation:</div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small"> printMinMax(dTdx,0)</div><div class="gmail_default" style="font-size:small"> printMinMax(dTdy,0)</div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small"> etc.</div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small">You may want to do this on every variable that you are getting with "wrf_user_getvar" to make sure those all look okay.</div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small">If it looks like center_finite_diff is the issue, then revisit the documentation to make sure all the input parameters are being input correctly:</div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default"><a href="http://www.ncl.ucar.edu/Document/Functions/Built-in/center_finite_diff.shtml" target="_blank">http://www.ncl.ucar.edu/Document/Functions/Built-in/center_finite_diff.shtml</a><span><font color="#888888"><br></font></span></div><span><font color="#888888"><div class="gmail_default"><br></div><div class="gmail_default">--Mary</div></font></span></div><div><div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Apr 19, 2016 at 3:53 PM, Ryan Connelly <span dir="ltr"><<a href="mailto:rconne01@gmail.com" target="_blank">rconne01@gmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr">Hi Mary,<div><br></div><div>I use NCL that's installed on a shared server where WRF is configured. I don't suspect I have permissions to remove an old version. I recently updated to 6.3.0 on my local machine, but then I have to copy the wrfout over, which is a bit time-consuming since I'm running a triple nest down to 1.333 km! :O</div><div><br></div><div>These extra commands that you suggested certainly give a clue that I'm not calculating things right:</div><div><br></div><div><div><font face="monospace, monospace">Variable: temp_adv</font></div><div><font face="monospace, monospace">Type: float</font></div><div><font face="monospace, monospace">Total Size: 396772 bytes</font></div><div><font face="monospace, monospace"> 99193 values</font></div><div><font face="monospace, monospace">Number of Dimensions: 2</font></div><div><font face="monospace, monospace">Dimensions and sizes:<span style="white-space:pre-wrap"> </span>[281] x [353]</font></div><div><font face="monospace, monospace">Coordinates: </font></div><div><font face="monospace, monospace">Number Of Attributes: 1</font></div><div><font face="monospace, monospace"> _FillValue :<span style="white-space:pre-wrap"> </span>9.96921e+36</font></div><div><font face="monospace, monospace">(0)<span style="white-space:pre-wrap"> </span>min=-inf max=inf</font></div></div><div><br></div><div><br></div><div>281x353 is my grid size, so that's good, but the infinities probably are not...</div><div><br></div><div>Thanks,</div><div>Ryan</div></div><div><div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Apr 19, 2016 at 10:38 AM, Mary Haley <span dir="ltr"><<a href="mailto:haley@ucar.edu" target="_blank">haley@ucar.edu</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div dir="ltr"><div class="gmail_default" style="font-size:small">Hi Ryan,</div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small">Is there a reason why you don't want to upgrade from V6.1.2? The version you have is over 3 years old.</div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small">I can't be sure of why your temp_adv variable is not plotting, without actually being able to run the script.</div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small">However, rather than printing the whole temp_adv array, what does the following report:</div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small">printVarSummary(temp_adv)</div><div class="gmail_default" style="font-size:small">printMinMax(temp_adv,0)</div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small">Sometimes this will give you a clue where the problem is, for example, your min/max values are off scale, or the size of the array is not what you were expecting.</div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small">You can also try plotting temp_adv with a basic contour plot call:</div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small"> plot = gsn_csm_contour(wks,temp_adv,False)</div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small">just to make sure that the problem isn't with wrf_contour itself.</div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small">--Mary</div><div class="gmail_default" style="font-size:small"><br></div></div><div class="gmail_extra"><br><div class="gmail_quote"><div><div>On Mon, Apr 18, 2016 at 12:49 PM, Ryan Connelly <span dir="ltr"><<a href="mailto:rconne01@gmail.com" target="_blank">rconne01@gmail.com</a>></span> wrote:<br></div></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div><div dir="ltr">Hi,<div><br></div><div>Running 6.1.2, so can't use advect_variable without upgrading. So instead I have...</div><div><br></div><div><div><font face="monospace, monospace">;do it = 12,30,3 ; TIME LOOP</font></div><div><font face="monospace, monospace"> do it = 12,13,1</font></div><div><font face="monospace, monospace"><br></font></div><div><font face="monospace, monospace"> print("Working on time: " + times(it) )</font></div><div><font face="monospace, monospace"> res@TimeLabel = times(it) ; Set Valid time to use on plots</font></div><div><font face="monospace, monospace"><br></font></div><div><font face="monospace, monospace"><br></font></div><div><font face="monospace, monospace">;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;</font></div><div><font face="monospace, monospace">; First get the variables we will need</font></div><div><font face="monospace, monospace"><br></font></div><div><font face="monospace, monospace"> tc = wrf_user_getvar(a,"tc",it) ; 3D tc</font></div><div><font face="monospace, monospace"> td = wrf_user_getvar(a,"td",it) ; 3D td</font></div><div><font face="monospace, monospace"> u = wrf_user_getvar(a,"ua",it) ; 3D U at mass points</font></div><div><font face="monospace, monospace"> v = wrf_user_getvar(a,"va",it) ; 3D V at mass points</font></div><div><font face="monospace, monospace"> p = wrf_user_getvar(a, "pressure",it) ; pressure is our vertical coordinate</font></div><div><font face="monospace, monospace"> z = wrf_user_getvar(a,"z",it) ; Full model height in meters</font></div><div><font face="monospace, monospace"> z_dec = z/10. ; Height in decameters</font></div><div><font face="monospace, monospace"> </font><span style="font-family:monospace,monospace">lon = wrf_user_getvar(a,"lon",it)</span></div><div><font face="monospace, monospace"> lat = wrf_user_getvar(a,"lat",it)</font></div></div><div><font face="monospace, monospace"><div><br></div><div>;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;</div><div>; Interpolate to isobaric planes</div><div><br></div><div> pressure = 850.</div><div><br></div><div> tc_plane = wrf_user_intrp3d(tc,p,"h",pressure,0.,False)</div><div> z_plane = wrf_user_intrp3d(z_dec,p,"h",pressure,0.,False)</div><div> u_plane = wrf_user_intrp3d( u,p,"h",pressure,0.,False)</div><div> v_plane = wrf_user_intrp3d( v,p,"h",pressure,0.,False)</div><div><br></div><div><br></div><div>; Define variables needed to calculate temp advection<br></div><div><br></div><div> dTdx = center_finite_diff_n(tc_plane,lon,False,0,0)</div><div> dTdy = center_finite_diff_n(tc_plane,lat,False,0,0)</div><div><br></div><div> temp_adv = u_plane*dTdx + v_plane*dTdy<br></div><div><br></div><div> print(temp_adv)</div><div><br></div><div><br></div><div>;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;</div><div><br></div><div> ; Plotting options for Tc</div><div> opts = res</div><div> print("Defined ops")</div><div> opts@cnFillOn = True</div><div> print("Turned fill on")</div><div> opts@cnLabelMasking = True</div><div> opts@cnInfoLabelOn = False</div><div> opts@cnLineLabelPerimOn = False</div><div> opts@ContourParameters = (/ -60., 60., 3./)</div><div> print("Accepted contour parameters")</div><div> ;opts@gsnSpreadColorEnd = -3 ; End third from the last color in color map</div><div> contour_tc = wrf_contour(a,wks,temp_adv,opts) ; <- Breaks right here</div><div> print("wrf_contour called")</div><div> delete(opts)</div><div> print("opts deleted")</div><div><br></div><div> print("Got past plotting options for Tc")</div><div><br></div><div><br></div><div><div>; MAKE PLOTS</div><div> ;plot = wrf_map_overlays(a,wks,(/contour_tc,contour_td,contour_z/),pltres,mpres)</div><div> plot = wrf_map_overlays(a,wks,(/contour_tc/),pltres,mpres)</div><div> ;plot = wrf_map_overlays(a,wks,(/contour_td,vector/),pltres,mpres)</div><div><br></div><div>;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;</div><div><br></div><div> end do ; END OF TIME LOOP</div></div><div><br></div><div><br></div></font></div><div>When it prints out the full grid of temp_adv, or random indexes of the array, I get reasonable values and no reason to suspect the grid is undefined anywhere. Yet as you can see from my print statements, the call to wrf_contour fails. It does not throw an error; it just hangs up. I checked with just tc_plane instead, and that completed fine, so it has to be an issue with the temp_adv grid I calculated.</div><div><br></div><div>Thanks,</div><div>Ryan<span><font color="#888888"><br clear="all"><div><br></div>-- <br><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div dir="ltr"><font size="1">Ryan Connelly</font></div><div dir="ltr"><div dir="ltr" style="font-size:12.8px"><font color="#000000"><font size="1">M.S. Student in Atmospheric Sciences, </font><span style="font-size:x-small">Stony Brook University</span><br></font></div><div dir="ltr" style="font-size:12.8px"><div><font color="#000000"><font size="1">B.S. in Meteorology with Minors in Mathematics and GIS, </font><span style="font-size:x-small">Valparaiso University</span></font></div></div><div><a href="mailto:rconne01@gmail.com" style="font-size:x-small" target="_blank">rconne01@gmail.com</a><br></div><div><font size="1"><a href="mailto:ryan.connelly@stonybrook.edu" target="_blank">ryan.connelly@stonybrook.edu</a></font></div></div></div></div></div></div></div></div></div></div>
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</blockquote></div><br><br clear="all"><div><br></div>-- <br><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div dir="ltr"><font size="1">Ryan Connelly</font></div><div dir="ltr"><div dir="ltr" style="font-size:12.8000001907349px"><font color="#000000"><font size="1">M.S. Student in Atmospheric Sciences, </font><span style="font-size:x-small">Stony Brook University</span><br></font></div><div dir="ltr" style="font-size:12.8000001907349px"><div><font color="#000000"><font size="1">B.S. in Meteorology with Minors in Mathematics and GIS, </font><span style="font-size:x-small">Valparaiso University</span></font></div></div><div><a href="mailto:rconne01@gmail.com" style="font-size:x-small" target="_blank">rconne01@gmail.com</a><br></div><div><font size="1"><a href="mailto:ryan.connelly@stonybrook.edu" target="_blank">ryan.connelly@stonybrook.edu</a></font></div></div></div></div></div></div></div></div></div></div>
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</div></div></blockquote></div><br><br clear="all"><div><br></div>-- <br><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div dir="ltr"><font size="1">Ryan Connelly</font></div><div dir="ltr"><div dir="ltr" style="font-size:12.8000001907349px"><font color="#000000"><font size="1">M.S. Student in Atmospheric Sciences, </font><span style="font-size:x-small">Stony Brook University</span><br></font></div><div dir="ltr" style="font-size:12.8000001907349px"><div><font color="#000000"><font size="1">B.S. in Meteorology with Minors in Mathematics and GIS, </font><span style="font-size:x-small">Valparaiso University</span></font></div></div><div><a href="mailto:rconne01@gmail.com" style="font-size:x-small" target="_blank">rconne01@gmail.com</a><br></div><div><font size="1"><a href="mailto:ryan.connelly@stonybrook.edu" target="_blank">ryan.connelly@stonybrook.edu</a></font></div></div></div></div></div></div></div></div></div></div>
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</div></div></blockquote></div><br><br clear="all"><div><br></div>-- <br><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div dir="ltr"><font size="1">Ryan Connelly</font></div><div dir="ltr"><div dir="ltr" style="font-size:12.8000001907349px"><font color="#000000"><font size="1">M.S. Student in Atmospheric Sciences, </font><span style="font-size:x-small">Stony Brook University</span><br></font></div><div dir="ltr" style="font-size:12.8000001907349px"><div><font color="#000000"><font size="1">B.S. in Meteorology with Minors in Mathematics and GIS, </font><span style="font-size:x-small">Valparaiso University</span></font></div></div><div><a href="mailto:rconne01@gmail.com" style="font-size:x-small" target="_blank">rconne01@gmail.com</a><br></div><div><font size="1"><a href="mailto:ryan.connelly@stonybrook.edu" target="_blank">ryan.connelly@stonybrook.edu</a></font></div></div></div></div></div></div></div></div></div></div>
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</div></div></blockquote></div><br></div>
</div></div></blockquote></div><br><br clear="all"><div><br></div>-- <br><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div dir="ltr"><font size="1">Ryan Connelly</font></div><div dir="ltr"><div dir="ltr" style="font-size:12.8000001907349px"><font color="#000000"><font size="1">M.S. Student in Atmospheric Sciences, </font><span style="font-size:x-small">Stony Brook University</span><br></font></div><div dir="ltr" style="font-size:12.8000001907349px"><div><font color="#000000"><font size="1">B.S. in Meteorology with Minors in Mathematics and GIS, </font><span style="font-size:x-small">Valparaiso University</span></font></div></div><div><a href="mailto:rconne01@gmail.com" style="font-size:x-small" target="_blank">rconne01@gmail.com</a><br></div><div><font size="1"><a href="mailto:ryan.connelly@stonybrook.edu" target="_blank">ryan.connelly@stonybrook.edu</a></font></div></div></div></div></div></div></div></div></div></div>
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