<html><body><div style="color:#000; background-color:#fff; font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:12pt"><div><span><span class="Apple-style-span" style="border-collapse: separate; font-family: Helvetica; font-size: medium; ">Andrew,</span></span></div><div style="border-collapse: separate; font-family: Helvetica; font-size: 16px; ">Here is a link that might be helpful. Extrapolation of the heights are made using the hydrostatic equation:</div><div style="border-collapse: separate; font-family: Helvetica; font-size: medium; "><br></div><div style="border-collapse: separate; font-family: Helvetica; font-size: medium; "><a href="https://reanalyses.org/atmosphere/extrapolation-merra-reanalyses-obtain-continuous-fields">https://reanalyses.org/atmosphere/extrapolation-merra-reanalyses-obtain-continuous-fields</a></div><div style="border-collapse: separate; font-family: Helvetica; font-size:
medium; "><br></div><div style="border-collapse: separate; font-family: Helvetica; font-size: medium; ">Lee</div><div><br></div><div></div><div class="yahoo_quoted" style="display: block; "> <br> <br> <div style="font-size: 12pt; font-family: HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; "> <div style="font-size: 12pt; font-family: HelveticaNeue, 'Helvetica Neue', Helvetica, Arial, 'Lucida Grande', sans-serif; "> <div dir="ltr"> <font size="2" face="Arial"> On Monday, November 4, 2013 1:31 AM, Andrew Revering <andy@f5data.com> wrote:<br> </font> </div> <div class="y_msg_container"><div id="yiv6135427442"><div dir="ltr">Is there a good way to extrapolate where the 1000mb height would be?<div><br></div><div>For example, in doing a 1000mb to 500mb thickness, I have the 500mb height, and I have the surface elevation, but I do not have the calculated 1000mb height to create a thickness map.</div>
<div><br></div><div>How is that done? Obviously its below ground over most areas, especially the mountains.</div><div><br></div><div><br></div><div><br clear="all"><div>Andrew Revering - Follow <a rel="nofollow" target="_blank" href="https://twitter.com/intent/follow?screen_name=andrewrevering&source=email&variant=2.0&xd_token=ceae5c40173e5">@andrewrevering</a> on Twitter<div>
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