<div dir="ltr"><div>Your skew-t, while helpful, remains of limited use without information as to where it is located on your map. Can you give us more info, and are you sure you are using data for the correct location?</div><div><br></div>Have you considered these values may be different types of CAPE? (e.g. SBCAPE, MLCAPE, MUCAPE?)<div><br></div><div>From your sounding, there is zero surface-based CAPE. If you use the most unstable parcel (i.e. the one with highest CAPE), you may be able to get a small positive value of CAPE by lifting the parcel from the nose of the thermal inversion near the 950 hPa level.</div><div><br></div><div>A quick run through the data values output across the top of the sounding appear to agree nearly perfectly with your sounding data (LCL pressure, LCL temperature, etc.)</div><div><br></div><div>I'm not familiar with the particular CAPE calculation functions, but I believe the documentation or the code itself will likely help you make this determination.</div><div><br></div><div><br></div><div>Kyle</div></div><br><div class="gmail_quote"><div dir="ltr">On Wed, May 11, 2016 at 5:10 PM xiaoming Hu <<a href="mailto:yuanfangcan@hotmail.com">yuanfangcan@hotmail.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div><div dir="ltr"><div><div dir="ltr">I got 0 cape from skewT_PlotData always during nighttime. </div></div></div></div><div><div dir="ltr"><div><div dir="ltr"><div><div style="display:inline-block"> <span> </span> <div style="display:inline-block"><img src="cid:inlineImage1" height="738" width="844"></div> <span> </span></div><br></div></div></div></div></div><div><div dir="ltr"><div><div dir="ltr"><div>which is different from what I got from </div></div></div></div></div><div><div dir="ltr"><div><div dir="ltr"><div><div> cinfo = wrf_cape_2d(pres , tk, q, z, HGT, PSFC, True )</div><div> mcape = cinfo(0,:,:)</div></div></div></div></div></div><div><div dir="ltr"><div><div dir="ltr"><div><div><div style="display:inline-block"> <span> </span> </div><a href="http://www.caps.ou.edu/micronet/WRF-UCM/FocusON_OKC/WRFV3.7.1/with_rr_fixed/wrfNCEP_DOE2d_UCM_Snudge_WangRec53waveCU14YSUparameterp_1.2005060100/wrfout_d01_CAPE_1.png" style="font-size:12pt" target="_blank">http://www.caps.ou.edu/micronet/WRF-UCM/FocusON_OKC/WRFV3.7.1/with_rr_fixed/wrfNCEP_DOE2d_UCM_Snudge_WangRec53waveCU14YSUparameterp_1.2005060100/wrfout_d01_CAPE_1.png</a></div></div></div></div></div></div><div><div dir="ltr"><div><div dir="ltr"><div><div><span style="font-size:12pt">Apparently </span><span style="font-size:12pt">wrf_cape_2d gives non-zero values. </span></div><div><span style="font-size:12pt"><br></span></div><div>Anything wrong for one of them? </div><div><br></div><div>Thanks</div><div>Xiaoming </div><div><div style="display:inline-block"><span><br></span></div></div><div><br></div><br><div><hr>Date: Fri, 22 Apr 2016 14:51:24 -0600<br>Subject: Re: [ncl-talk] Where to download 6.4.0 right now?<br>From: <a href="mailto:haley@ucar.edu" target="_blank">haley@ucar.edu</a><br>To: <a href="mailto:yuanfangcan@hotmail.com" target="_blank">yuanfangcan@hotmail.com</a><br>CC: <a href="mailto:ncl-talk@ucar.edu" target="_blank">ncl-talk@ucar.edu</a><br><br><div dir="ltr"><div style="font-size:small">Xiaoming,</div><div style="font-size:small"><br></div><div style="font-size:small">We've been testing "conda" as a distribution mechanism for NCL, and we have a test version of NCL that you can try using this. Please note that this is a TEST version, as we haven't released V6.4.0 yet. This version does have the cape_2d fix.</div><div style="font-size:small"><br></div><div style="font-size:small">Here's how to get "conda"</div><div style="font-size:small"><br></div><div style="font-size:small">1) Download "miniconda" from:</div><div style="font-size:small"><br></div><div><a href="http://conda.pydata.org/miniconda.html" target="_blank">http://conda.pydata.org/miniconda.html</a><br></div><div><br></div><div>Get the Python 2.7 version and not Python 3.5.</div><div><br></div><div>2) Install from a UNIX terminal window by typing:</div><div><br></div><div><font face="monospace, monospace">conda create --name ncl_test --channel dbrown --channel khallock ncl</font></div><div><br></div><div>This creates a conda environment called "ncl_test" in which you switch in and out of from your default version of NCL</div><div><br></div><div>3) To activate the "ncl_test" environment, type (from bash/sh):</div><div><br></div><div><font face="monospace, monospace">source activate ncl_test</font></div><div><br></div><div>4) Test NCL by typing:</div><div><br></div><div><font face="monospace, monospace">ncl -V</font></div><div><font face="monospace, monospace">ng4ex xy01n -clean</font></div><div><br></div><div>If you have problems with the conda version, we would like to know about this right away, as we are still testing it out.</div><div><br></div><div>Thanks,</div><div><br></div><div>--Mary</div><div><br></div></div><div><br><div>On Fri, Apr 22, 2016 at 2:26 PM, xiaoming Hu <span dir="ltr"><<a href="mailto:yuanfangcan@hotmail.com" target="_blank">yuanfangcan@hotmail.com</a>></span> wrote:<br><blockquote style="border-left:1px #ccc solid;padding-left:1ex">
<div><div dir="ltr"><div>I noticed </div><div><table border="1"><tbody><tr><td valign="top"><em>cape_2d</em> </td><td>Returns 2D fields mcape/mcin/lcl/lfc
<b>Bug fixed in NCL V6.4.0</b><br></td></tr></tbody></table></div><div><br></div><div>Where to download 6.4.0 right now? </div><div><br></div><div>Thanks</div><span><font color="#888888"><div>Xiaoming </div> </font></span></div></div>
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