<div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div dir="ltr"><div class="gmail_default" style="font-size:small">Dear Mario,</div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small">Welcome to ncl-talk!</div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small">First, to fill the areas in your map, you don't want to set:</div><br> res@mpFillOn = False<div><br></div><div><div class="gmail_default" style="font-size:small">because this turns *off* map fill. If you comment that line out or set it to True, then your land will be filled in gray by default. You can change the color of the land with:</div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small"> res@mpLandFillColor = "green" ; or whatever color you want</div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small">For more information on graphics in NCL, I highly recommend two things: </div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small">1. Look over the examples on the Applications page:</div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small"><a href="http://www.ncl.ucar.edu/Applications/">http://www.ncl.ucar.edu/Applications/</a></div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small">In particular, this page has lots of examples on how to control your map outlines and change the fill color:</div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default"><a href="http://www.ncl.ucar.edu/Applications/maponly.shtml">http://www.ncl.ucar.edu/Applications/maponly.shtml</a><br></div><div class="gmail_default"><br></div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small">2. Read the NCL User Guide, which has an excellent tutorial for people just starting out with NCL graphics:</div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default"><a href="http://www.ncl.ucar.edu/Document/Manuals/NCL_User_Guide/">http://www.ncl.ucar.edu/Document/Manuals/NCL_User_Guide/</a><br></div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small">The warnings you are getting likely come from your lat/lon coordinate arrays not have a units of "degrees_north" and "degrees_east". In order to correctly plot data on a map, NCL requires that the lat/lon coordinate arrays attached to your data have these units.</div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small">You can verify whether your coordinates have the correct units by adding these two lines to your script:</div><div class="gmail_default" style="font-size:small"><br></div>printVarSummary(<span style="font-size:small;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline">TDAY2013&l<span class="gmail_default" style="font-size:small">on)</span></span><span class="gmail_default" style="font-size:small"></span><br>printVarSummary(<span style="font-size:small;background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline">TDAY2013&lat</span><span class="gmail_default" style="font-size:small">)</span><br><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small">If the units don't look correct, then you can fix them with:</div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small"><span style="background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial;float:none;display:inline">TDAY2013&l</span><span class="gmail_default" style="text-decoration-style:initial;text-decoration-color:initial">on@units = "degrees_north"</span><br></div><div class="gmail_default" style="font-size:small"><span style="text-decoration-style:initial;text-decoration-color:initial;background-color:rgb(255,255,255);float:none;display:inline">TDAY2013&l</span><span class="gmail_default" style="background-color:rgb(255,255,255);text-decoration-style:initial;text-decoration-color:initial">on@units = "degrees_east"</span></div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default" style="font-size:small">BTW, If you ever get an NCL error message you don't understand, then you can go to the NCL home page:</div><div class="gmail_default" style="font-size:small"><br></div><div class="gmail_default"><a href="http://www.ncl.ucar.edu">http://www.ncl.ucar.edu</a><br></div><div class="gmail_default"><br></div><div class="gmail_default">and hover your mouse over on "Support" in the black bar. This brings up a pull-down menu that has "Error messages". On that page, you will find several common error messages, what causes them, and how to fix them.</div><div class="gmail_default"><br></div><div class="gmail_default">Lastly, we have an examples page on plotting data on a map that is useful for beginners. It is also part of the Application suite of examples:</div><div class="gmail_default"><br></div><div class="gmail_default"><a href="http://www.ncl.ucar.edu/Applications/plot_data_on_map.shtml">http://www.ncl.ucar.edu/Applications/plot_data_on_map.shtml</a><br></div><div class="gmail_default"><br></div><div class="gmail_default">Hope this helps you get started!</div><div class="gmail_default"><br></div><div class="gmail_default">--Mary</div><div class="gmail_default"><br></div><div class="gmail_default"><br></div><div class="gmail_default"><br></div><br></div></div></div></div></div></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Tue, Oct 16, 2018 at 2:37 PM, Mario Rossi <span dir="ltr"><<a href="mailto:yashi4891@hotmail.com" target="_blank">yashi4891@hotmail.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
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Hi all,</div>
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this if my first post and i'm quit new to ncl.</div>
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I'm trying to plot weather station data of my network (about 95 weather stations).</div>
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I started with this example <a href="https://www.ncl.ucar.edu/Applications/station.shtml" id="m_2444923351761732117LPNoLP991833" target="_blank">https://www.ncl.ucar.<wbr>edu/Applications/station.shtml</a><wbr> using my data (a .dat file with 4 coulumn: id,lat,lon,temperature).</div>
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I correclty plot the data and i can see the map but i still have some concerne that i do not catch very well:</div>
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-How can i "fill" the map with data till the coastline, or in general, fill an entire region of a country? (attached image)</div>
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Once i will understand how to fix the point above,i would like to make a further step, interpolating the data using natgrid, so i started from the code used above and modified it but i have the following error:</div>
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<span style="font-family:monospace"><span style="color:#000000;background-color:#ffffff">(0) check_for_lon_coord: Warning: Data either does not contain
</span><br>
(0) a valid longitude coordinate array or doesn't contain one at all. <br>
(0) A valid longitude coordinate array should have a 'units' <br>
(0) attribute equal to one of the following values: <br>
(0) 'degrees_east' 'degrees-east' 'degree_east' 'degrees east' 'degrees_E' 'Degrees_east' 'degree_E' 'degreeE' 'de<br>
greesE' 'deg east'<br>
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Attached you will find the code that return this error containing the interpolation code with natgrid (test.ncl)</div>
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Any help will be very appreciated.</div>
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Thank you guys!</div>
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