<div dir="ltr">Thanks Mary and Rick. I'll work with the examples you mentioned and see what I can do to correct it. <div><br><div>Attached is a google maps image showing the data and placement, to answer your questions.</div><div><br></div><div><br clear="all"><div><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div><font size="4"><b><span style="font-family:georgia,serif"><span></span><span></span><br>Tim Risner</span></b></font><br></div><i>Operational Meteorologist</i><br> </div><span><i>(888) 798-9955 ext 1006</i><br><br></span><div><a href="http://www.awis.com" target="_blank"><img alt="" src="https://pbs.twimg.com/profile_images/524275730171969536/n2Ev5bg8.jpeg" height="47" width="47"></a><a href="https://www.facebook.com/AWISWeatherServices/" target="_blank"><img alt="https://www.facebook.com/AWISWeatherServices/" src="https://upload.wikimedia.org/wikipedia/commons/thumb/1/1b/Facebook_icon.svg/2000px-Facebook_icon.svg.png" height="47" width="47"></a><a href="https://twitter.com/awisweather" target="_blank"><span><img src="https://lh3.ggpht.com/lSLM0xhCA1RZOwaQcjhlwmsvaIQYaP3c5qbDKCgLALhydrgExnaSKZdGa8S3YtRuVA=w300" height="48" width="48"></span></a><br></div></div></div></div></div></div></div></div></div></div></div></div><br></div></div></div><br><div class="gmail_quote"><div dir="ltr">On Thu, Jan 10, 2019 at 11:32 AM Mary Haley <<a href="mailto:haley@ucar.edu">haley@ucar.edu</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div class="gmail_default" style="font-size:small">Hi Tim,</div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small">I echo what Rick says about not being certain without seeing the data.</div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small">Is your data a set of random points, or on a gridded structure, or something else? If it's on a gridded structure, then what happens if you don't set trGridType at all?</div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small">I'm also interested to know the structure of your lat/lon data and how dense the values are. Does your data contain any missing values? I don't think this is the issue here, but it is important to be aware of this.</div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small">One thing I like to do for problem plots like this is to zoom in on the area with the problem, and then plot dots where the lat/lon locations are just to see if there's anything going on with regard to the density of the locations and/or potential missing values.</div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small">If you look at this page:</div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default"><a href="http://www.ncl.ucar.edu/Applications/datagrid.shtml" target="_blank">http://www.ncl.ucar.edu/Applications/datagrid.shtml</a></div><div class="gmail_default"><br></div><div class="gmail_default">you will see some examples of using gsn_coordinates to plot the lat/lon locations of your data, and also use different colors for where the data is missing or not. </div><div class="gmail_default"><br></div><div class="gmail_default">In particular, datagrid_6.ncl might be useful if you have curvilinear data.</div><div class="gmail_default"><br></div><div class="gmail_default"><a href="http://www.ncl.ucar.edu/Applications/datagrid.shtml#ex6" target="_blank">http://www.ncl.ucar.edu/Applications/datagrid.shtml#ex6</a><br></div><div class="gmail_default"><br></div><div class="gmail_default">If you have random data, then contour1d.ncl on the same same might be useful. <br></div><div class="gmail_default"><br></div><div class="gmail_default">--Mary</div><div class="gmail_default"><br></div></div></div></div><br><div class="gmail_quote"><div dir="ltr">On Thu, Jan 10, 2019 at 10:07 AM Rick Brownrigg <<a href="mailto:brownrig@ucar.edu" target="_blank">brownrig@ucar.edu</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr"><div>Hi Tim,</div><div><br></div><div>I don't know for certain without looking at the data, but I have to imagine its manifest in the data itself, and that in those regions you mentioned the probability is hovering right around 50%. The color contrast between 40% and 50% is rather abrupt, relative to the rest of the successive colors, which I think draws attention to the fluctuations. There also appears to be similar fluctuations going on in Montana and Minnesota, but its harder to see because those colors "closer" to each other, perceptually.</div><div><br></div><div>FWIW...</div><div>Rick</div><div><br></div></div><br><div class="gmail_quote"><div dir="ltr">On Thu, Jan 10, 2019 at 9:52 AM Tim Risner <<a href="mailto:trisner@awis.com" target="_blank">trisner@awis.com</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div dir="ltr">I'm curious as to what may be causing a grainy section in Central Mississippi and SE Ohio of the attached image. <div>I'm using "RasterFill" and cnRasterSmoothingOn is set to True. </div><div>trGridType of all types causes it. </div><div>Data is pretty uniform in those regions. </div><div><br><div><div><div dir="ltr" class="gmail-m_-2324591309427903820gmail-m_7230254210284745613gmail-m_211329666925128517gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div><font size="4"><b><span style="font-family:georgia,serif"><span></span><span></span><br>Tim Risner</span></b></font><br></div><i>Operational Meteorologist</i><br> </div><span><i>(888) 798-9955 ext 1006</i><br><br></span><div><a href="http://www.awis.com" target="_blank"><img alt="" src="https://pbs.twimg.com/profile_images/524275730171969536/n2Ev5bg8.jpeg" width="47" height="47"></a><a href="https://www.facebook.com/AWISWeatherServices/" target="_blank"><img alt="https://www.facebook.com/AWISWeatherServices/" src="https://upload.wikimedia.org/wikipedia/commons/thumb/1/1b/Facebook_icon.svg/2000px-Facebook_icon.svg.png" width="47" height="47"></a><a href="https://twitter.com/awisweather" target="_blank"><span><img src="https://lh3.ggpht.com/lSLM0xhCA1RZOwaQcjhlwmsvaIQYaP3c5qbDKCgLALhydrgExnaSKZdGa8S3YtRuVA=w300" width="48" height="48"></span></a><br></div></div></div></div></div></div></div></div></div></div></div></div></div></div></div>
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