<div dir="ltr">Thanks, Dennis! I'm trying to geo reference the data to plot it on a polar stereographic map projection. But I only have information regarding the map projection and grid spacing in km (below). Can NCL perform coordinate transformation to estimate lat lon variables from the given information? I think the data is intended for use with ArcGIS and similar software so they don't come with lat lon coordinates.<div><br></div><div>Thanks,</div><div>Nisha<br><h3 class="m_-7730635194702122778gmail-I2" style="padding:0px;outline:none;font-family:Interval,"Arial Narrow",Arial,sans-serif;font-size:1.5em;font-weight:normal;color:rgb(11,75,194);margin:12px 0px 6px">Projection</h3><div><span style="color:rgb(68,68,68);font-family:Arial,Helvetica,sans-serif;font-size:13px">World Geodetic System 1984 (WGS 84) is the reference ellipsoid and datum. The projection is polar stereographic with a standard parallel of 71° S and origin of the South Pole.</span> </div><div><br></div><div><h3 class="m_-7730635194702122778gmail-I2" style="padding:0px;outline:none;font-family:Interval,"Arial Narrow",Arial,sans-serif;font-size:1.5em;font-weight:normal;color:rgb(11,75,194);margin:12px 0px 6px">Grid Description</h3><p class="m_-7730635194702122778gmail-I2" style="padding:0px;outline:none;margin:5px 0px 12px;color:rgb(68,68,68);font-family:Arial,Helvetica,sans-serif;font-size:13px">The grid is a 1 km grid of 5601 by 5601 grid boxes centered symmetrically about the pole. Grid size of 1 km is an optimization of resolution and interpolated cells, resulting in less than 32 percent of grid cells having interpolated values.</p></div></div></div><div class="gmail_extra"><br><div class="gmail_quote">On Sun, Jul 9, 2017 at 9:18 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">The attached does a simple read-and-plot. The plot does not have any geographic referencing. <br></div><div class="gmail_extra"><br><div class="gmail_quote"><div><div class="h5">On Sat, Jul 8, 2017 at 9:01 PM, Manisha Ganeshan <span dir="ltr"><<a href="mailto:manisha.ganeshan86@gmail.com" target="_blank">manisha.ganeshan86@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 class="h5"><div dir="ltr">Hi Barry, <div><br></div><div>I found some info on ENVI header files, and was able to figure out the data format, dimensions, and read the data successfully. Still trying to figure out the map and projection details, but I think that will be easier to do. Will let you know if I have further trouble.</div><div><br></div><div>Thanks,</div><div>Nisha</div></div><div class="m_7816615900065393996HOEnZb"><div class="m_7816615900065393996h5"><div class="gmail_extra"><br><div class="gmail_quote">On Sat, Jul 8, 2017 at 9:49 PM, Manisha Ganeshan <span dir="ltr"><<a href="mailto:manisha.ganeshan86@gmail.com" target="_blank">manisha.ganeshan86@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">Dear NCL community,<div><br></div><div>I'm trying to read a binary file without much success. I have tried asciiread and fbindirread functions, but the problem is I'm not sure what to enter in the data type field. There is not much information in the header file nor in the data description (web link below). The variable I am expecting to read is surface elevation (likely in meters), but no matter what data format I attempt to read, I don't seem to get reasonable values. Any leads on how to proceed will be much appreciated. The actual binary data file and the header file are available for download from the weblink below.</div><div><br></div><div>Thanks,</div><div>Nisha</div><div><div><br></div><div>Weblink describing the data</div><div><b><u><font size="4"><a href="http://nsidc.org/data/nsidc-0422" target="_blank">http://nsidc.org/data/nsidc-04<wbr>22</a></font></u></b><br></div><div><br></div><div><br></div><div>Download link for binary file and header file</div><div><strong style="color:rgb(0,0,0);font-family:Arial,Helvetica,sans-serif;font-size:18px;text-align:center"><a href="https://opendrive.gsfc.nasa.gov/shortauth/z/b3zIg8ah" style="color:black" target="_blank">https://opendrive.gsfc.nasa.go<wbr>v/shortauth/z/b3zIg8ah</a></strong><span class="m_7816615900065393996m_-2552431281604503985HOEnZb"><font color="#888888"><br></font></span></div><span class="m_7816615900065393996m_-2552431281604503985HOEnZb"><font color="#888888">-- <br><div class="m_7816615900065393996m_-2552431281604503985m_166642072412607819gmail_signature"><div dir="ltr">Dr. Manisha Ganeshan<div>Universities Space Research Association</div><div>Maryland, U.S.A.</div></div></div>
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</blockquote></div><br><br clear="all"><div><br></div>-- <br><div class="m_7816615900065393996m_-2552431281604503985gmail_signature" data-smartmail="gmail_signature"><div dir="ltr">Dr. Manisha Ganeshan<div>Universities Space Research Association</div><div>Maryland, U.S.A.</div></div></div>
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</blockquote></div><br><br clear="all"><div><br></div>-- <br><div class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr">Dr. Manisha Ganeshan<div>Universities Space Research Association</div><div>Maryland, U.S.A.</div></div></div>
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