<html><head><meta http-equiv="Content-Type" content="text/html charset=utf-8"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">ignoring the initial ambiguous section in your code. <div class="">( Whats going on between lines 36 - 46. As is, it fails, and then it seems like you overwrite it anyway. )</div><div class=""> </div><div class=""><br class=""></div><div class="">Your problem is a simple lack of metadata. </div><div class=""><div class=""><br class=""></div><div class=""> <font face="InputMono-Regular" class=""> ws = sqrt(u^2 + v^2) ; Calculate Windspped</font></div></div><div class="">This doesn’t copy over any meta data so ws is a 3d array but with no coordinates. Therefore gsn_csm_pres_hgt() doesn’t know what to do it. </div><div class=""><br class=""></div><div class=""><div class=""><font face="InputMono-Regular" class=""> ws = sqrt(u^2 + v^2) ; Calculate Windspped</font></div><div class=""><font face="InputMono-Regular" class=""> copy_VarCoords(u, ws)</font></div><div class=""><font face="InputMono-Regular" class=""> var=ws</font></div><div class=""><br class=""></div></div><div class=""><br class=""></div><div class="">The printVarSummary(ws) you had commented out, should have revealed the lack of metadata on this variable. </div><div class="">Now ws and subsequently var has all the necessary metadata the gsn_csm plots can work out what they’re doing. The error text is more specific than it needs to be. Your problem is the lack of any coordinate, attaching the coordinate “lv_ISBL0” will work fine. </div><div class=""><br class=""></div><div class=""><br class=""></div><div class=""><br class=""></div><div class="">Good luck, </div><div class=""><br class=""></div><div class="">Alan </div><div class=""><br class=""></div><div class=""><br class=""></div><div class=""><br class=""></div><div class=""><br class=""></div><div class=""><br class=""></div><div class=""><br class=""><div class="">
<div style="color: rgb(0, 0, 0); letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><div style="color: rgb(0, 0, 0); font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class=""><span class="Apple-style-span" style="border-collapse: separate; color: rgb(0, 0, 0); font-family: Helvetica; font-style: normal; font-variant: normal; font-weight: normal; letter-spacing: normal; line-height: normal; orphans: 2; text-indent: 0px; text-transform: none; white-space: normal; widows: 2; word-spacing: 0px; border-spacing: 0px; -webkit-text-decorations-in-effect: none; -webkit-text-stroke-width: 0px;"><div style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" class="">##############################<br class="">Alan Brammer,<div class="">Post-Doc Researcher</div><div class=""><br class=""></div><div class="">Department of Atmospheric and Environmental Sciences,<br class="">University at Albany, State University of New York, Albany, NY, 12222<div class=""><a href="mailto:abrammer@albany.edu" class="">abrammer@albany.edu</a><br class="">##############################</div></div></div></span></div></div>
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<br class=""><div><blockquote type="cite" class=""><div class="">On 24 Apr 2017, at 11:43, Black, Forrest (LARC-D318)[UNIVERSITIES SPACE RESEARCH ASSOCIATION] <<a href="mailto:forrest.black@nasa.gov" class="">forrest.black@nasa.gov</a>> wrote:</div><br class="Apple-interchange-newline"><div class=""><div class="WordSection1" style="page: WordSection1; font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px;"><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class="">Hello,<o:p class=""></o:p></div><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><o:p class=""> </o:p></div><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class="">I am trying to plot a cross-section plot of wind-speed using NCL version 6.3.0.<o:p class=""></o:p></div><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class="">The attached script is modified from an example found at<span class="Apple-converted-space"> </span><a href="http://www.ncl.ucar.edu/Applications/height_long.shtml" style="color: rgb(149, 79, 114); text-decoration: underline;" class="">http://www.ncl.ucar.edu/Applications/height_long.shtml</a><span class="Apple-converted-space"> </span>- example “<a href="http://www.ncl.ucar.edu/Applications/Scripts/narr_6.ncl" style="color: rgb(149, 79, 114); text-decoration: underline;" class=""><span style="font-size: 10pt; font-family: Verdana, sans-serif; color: rgb(133, 45, 133); text-decoration: none;" class="">narr_6.ncl</span></a>”.<o:p class=""></o:p></div><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><o:p class=""> </o:p></div><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class="">The error message I keep getting is:<o:p class=""></o:p></div><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><o:p class=""> </o:p></div><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span style="font-size: 9pt; font-family: 'Lucida Console';" class="">(0) gsn_csm_pres_hgt: Fatal: The first dimension of the input data must<o:p class=""></o:p></span></div><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span style="font-size: 9pt; font-family: 'Lucida Console';" class="">(0) have a coordinate variable called 'lev.'<o:p class=""></o:p></span></div><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span style="font-size: 9pt; font-family: 'Lucida Console';" class="">(0) Cannot create plot.<o:p class=""></o:p></span></div><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span style="font-size: 9pt; font-family: 'Lucida Console';" class="">fatal:Illegal right-hand side type for assignment<o:p class=""></o:p></span></div><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span style="font-size: 9pt; font-family: 'Lucida Console';" class="">fatal:["Execute.c":8575]:Execute: Error occurred at or near line 132 in file wind_speed_profile.ncl<o:p class=""></o:p></span></div><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><span style="font-size: 9pt; font-family: 'Lucida Console';" class=""><o:p class=""> </o:p></span></div><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class="">It seems that although the variable I am using has pressure level data (in Pa units), the leftmost dimension is not specifically named “lev”.<o:p class=""></o:p></div><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><o:p class=""> </o:p></div><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class="">Any suggestions suggestion on how to get around this error would be greatly appreciated.<o:p class=""></o:p></div><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><o:p class=""> </o:p></div><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class="">The grib2 file I am using is too large to attach, but a similar one can be found at<span class="Apple-converted-space"> </span><a href="ftp://nomads.ncdc.noaa.gov/RUC/13km/201702/20170201/rap_130_20170201_0000_000.grb2" title="here" style="color: rgb(149, 79, 114); text-decoration: underline;" class="">ftp://nomads.ncdc.noaa.gov/RUC/13km/201702/20170201/rap_130_20170201_0000_000.grb2</a><span class="MsoHyperlink" style="color: rgb(5, 99, 193); text-decoration: underline;"><o:p class=""></o:p></span></div><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><o:p class=""> </o:p></div><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class="">Thank you,<o:p class=""></o:p></div><div style="margin: 0in 0in 0.0001pt; font-size: 11pt; font-family: Calibri, sans-serif;" class=""><o:p class=""> </o:p></div><div style="margin: 0in 0in 0.0001pt 0.5in; font-size: 11pt; font-family: Calibri, sans-serif; text-indent: -0.25in;" class=""><span class="">-<span style="font-style: normal; font-variant-caps: normal; font-weight: normal; font-size: 7pt; line-height: normal; font-family: 'Times New Roman';" class=""> <span class="Apple-converted-space"> </span></span></span>Forrest<o:p class=""></o:p></div></div><span id="cid:EFCFF37A-F30F-4189-B343-C3B11B0ACAFB@eas.albany.edu"><wind_speed_profile.ncl></span><span style="font-family: Helvetica; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px; float: none; display: inline !important;" class="">_______________________________________________</span><br style="font-family: Helvetica; font-size: 12px; 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