<div dir="ltr"><div class="gmail_quote"><div dir="ltr"><div dir="ltr">NASA's ICESat-2 Laser Scanning Satellite needs your data (just by measuring tree heights with your smartphone):<br></div><div dir="ltr"><a href="https://blog.lidarnews.com/icesat-2-laser-scanning-satellite-calibration/" target="_blank">https://blog.lidarnews.com/icesat-2-laser-scanning-satellite-calibration/</a>  <br></div></div>
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