<div>After several recent climate science related satellite failures (I posted on Vision2020 about the multi-hundred million dollar GLORY polarimetry/aerosol satellite failure March 4, 2011, when it failed to reach orbit, lost in the Pacific ocean: <a href="http://glory.giss.nasa.gov/aps/">http://glory.giss.nasa.gov/aps/</a> <a href="http://www.space.com/11024-nasa-glory-climate-satellite-launch-failure.html">http://www.space.com/11024-nasa-glory-climate-satellite-launch-failure.html</a> ), the NPP is in orbit, as related on climate science website Realclimate.org, with discussion following. "Gavin" refers to NASA climate scientist Gavin Schmidt, from Goddard Institute for Space Studies: <a href="http://www.giss.nasa.gov/staff/gschmidt/">http://www.giss.nasa.gov/staff/gschmidt/</a></div>
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<div><a href="http://www.realclimate.org/index.php/archives/2011/10/npp-lift-off/">http://www.realclimate.org/index.php/archives/2011/10/npp-lift-off/</a></div>
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<div>NPP lift off</div>
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<div class="meta">Filed under:
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<li><a title="View all posts in Climate Science" href="http://www.realclimate.org/index.php/archives/category/climate-science/" rel="category tag">Climate Science</a></li>
<li><a title="View all posts in Instrumental Record" href="http://www.realclimate.org/index.php/archives/category/climate-science/instrumental-record/" rel="category tag">Instrumental Record</a></li></ul>— gavin @ 28 October 2011 </div>
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<div class="meta">The launch of the <a href="http://npp.gsfc.nasa.gov/">NASA/NOAA NPP</a> satellite seems to have gone off without a hitch this morning which is great news. This satellite has instruments that are vital to continuing data streams that were pioneered on the aging TERRA (1999), AQUA (2002) and AURA (2004), satellites – including the <a href="http://npp.gsfc.nasa.gov/ceres.html">CERES instrument</a> for monitoring the Earth’s radiation budget, a <a href="http://npp.gsfc.nasa.gov/atms.html">microwave sounder</a> to continue the AMSU data and a <a href="http://npp.gsfc.nasa.gov/viirs.html">visible/IR camera</a> to complement the work of MODIS.
<p>We really need to apologise for the acronym soup though – it is an endemic disease in satellite discussions. Indeed, NPP is a recursive acronym, standing for NPOESS Preparatory Project, where NPOESS stands for the National Polar-Orbiting Operational Environmental Satellite System. </p>
<p>Another satellite mission we’ve mentioned here, <a title="The age of Aquarius" href="http://www.realclimate.org/index.php/archives/2011/06/the-age-of-aquarius/">Aquarius</a> (launched in June), has recently released its first results on ocean salinity:</p>
<p>The patterns are not particularly surprising, there is higher salinity in the sub-tropical evaporative regions, lower salinity near the equator (because of the rain!), and particularly low salinity near big river outflows (the Amazon plume stands out clearly). However, as we noted earlier, the main interest is going to be in the variability. </p>
<p>Results from the NPP mission will take a while to come out and be cross-calibrated with the existing records, but given other recent disappointments (<a title="Glory (not to) be" href="http://www.realclimate.org/index.php/archives/2011/03/glory-not-to-be/">GLORY</a> and <a title="It’s wrong to wish on space hardware" href="http://www.realclimate.org/index.php/archives/2009/02/its-wrong-to-wish-on-space-hardware/">OCO</a>), this is a huge boost to the effort to monitor the Earth System.</p>
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<p>Vision2020 Post: Ted Moffett</p></div></div>