<div dir="ltr"><pre>Try:<br><br><a href="http://www.ncl.ucar.edu/Document/Functions/Contributed/obj_anal_ic_Wrap.shtml">http://www.ncl.ucar.edu/Document/Functions/Contributed/obj_anal_ic_Wrap.shtml</a><br><br> rscan = (/10, 5, 2/) ; play with these
grid = <a href="http://www.ncl.ucar.edu/Document/Functions/Contributed/obj_anal_ic.shtml"><strong>obj_anal_ic</strong></a>(zlon,zlat,zVal, lon,lat, rscan, False)<br><br><br></pre><pre>Good luck<br></pre></div><div class="gmail_extra">
<br><br><div class="gmail_quote">On Thu, Aug 7, 2014 at 3:56 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">Hello,<div><br></div><div>I'm trying to use the <i>natgrid</i> function in a manner similar to the <i>triple2grid</i>, i.e. basically to interpolate onto a lat lon grid. In my case, the advantage of the <i>natgrid</i> function over <i>triple2grid</i> is that multiple neighborhood (randomly spaced) observations can be utilized for interpolating onto a map.</div>
<div>I figured I will have to convert the lat lon coordinates to 1D cartesian (X,Y) coordinates in order to use <i>natgrid</i>. This is however easier said than done, because my map domain is over the north pole (60 to 90 N), which means my <i>xo</i> and <i>yo</i> (output X, Y grid dimensions) will have to be 2D. <i>natgrid</i> currently requires 1D arrays for the same. Any suggestions for a work around? </div>
<div><br></div><div>Thanks,</div><div>Nisha </div></div><div class="HOEnZb"><div class="h5"><div class="gmail_extra"><br><br><div class="gmail_quote">On Mon, Aug 4, 2014 at 9:17 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">Not that I am aware of. Sorry.<br></div><div><div><div class="gmail_extra"><br>
<br><div class="gmail_quote">On Fri, Aug 1, 2014 at 4:10 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">Thanks, Dennis. Is there a function that calculates the mean or saves the total number of nearest neighbor source points for each grid point in the destination grid? <div>
<br></div><div>Regards,</div><div>Nisha</div>
</div><div><div><div class="gmail_extra"><br><br><div class="gmail_quote">On Fri, Aug 1, 2014 at 6:03 PM, 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">It does not calculate the mean. New 'nearest neighbor' values overwrite previous values.<br></div><div class="gmail_extra"><br><br><div class="gmail_quote"><div><div>On Fri, Aug 1, 2014 at 3:59 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><div dir="ltr">Hello,<div><br></div><div>I have a question about the <i>triple2grid</i> function. The description says that the function does not perform interpolation but instead assigns each unstructured (source) data point to the nearest grid point (destination). How does it treat multiple unstructured data points (source) that have a common nearest grid point (destination)? Does it calculate the mean value (after ignoring missing values)?</div>
<div><br></div><div>Thanks,</div><div>Nisha </div></div>
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