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<p class="MsoNormal" style="text-align:center" align="center"><b style><span style="font-size:36.0pt;font-family:"Cambria","serif";color:#6c3fb5">JCSDA
Seminar</span></b></p>
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<p class="MsoNormal" style="text-align:right" align="right"><b style><span style="font-size:14.0pt">Title</span></b></p>
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<p class="MsoNormal" style><b><span style="font-size:18.0pt;font-family:"Arial","sans-serif"">Ozone Data Assimilation</span></b><b style><span style="font-size:18.0pt;font-family:"Arial","sans-serif""></span></b></p>
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<p class="MsoNormal" style="text-align:right" align="right"><b style><span style="font-size:14.0pt">Speaker</span></b></p>
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<p class="MsoNormal"><b style><span style="font-size:14.0pt;font-family:"Arial","sans-serif""><font>Krzysztof Wargan</font><br>
</span></b><b><span style="font-family:"Arial","sans-serif"">1) NASA/Goddard Space Flight Center/Global Modeling and
Assimilation Office</span></b></p>
<p class="MsoNormal"><b><span style="font-family:"Arial","sans-serif"">2) Science Systems and Applications
Inc.</span></b><b style><span style="font-size:14.0pt;font-family:"Arial","sans-serif""> </span></b><b style><span style="font-size:16.0pt;font-family:"Arial","sans-serif""></span></b></p>
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<p class="MsoNormal" style="text-align:right" align="right"><b style><span style="font-size:14.0pt">Date, Time & Place</span></b></p>
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<p class="MsoNormal" style><b style><span style="font-size:14.0pt;font-family:"Arial","sans-serif"">Tuesday,
October 16, 2012<br>
</span></b><b style><span style="font-family:"Arial","sans-serif";color:red">2:00 – 3:00 PM, Conference Center</span></b><span style="font-family:"Arial","sans-serif"">, NOAA Center for Weather and
Climate Prediction, <span style>5830 University
Research Court, College Park, MD </span></span></p>
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<p class="MsoNormal" style="text-align:right" align="right"><b style><span style="font-size:14.0pt">Abstract</span></b></p>
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<p class="MsoNormal" style="text-align:justify;text-justify:inter-ideograph"><span style="font-size:11.0pt;font-family:"Arial","sans-serif""><span style> </span>Assimilation of ozone data is an
important and challenging component of atmospheric data analysis for
operational and research purposes. In its operational analyses, the Global
Modeling and Assimilation Office uses total column ozone data from the Ozone
Monitoring Instrument (OMI) on the EOS Aura satellite and partial ozone
columns from Solar Backscatter Ultraviolet (SBUV) sounders on NOAA platforms.
These measurements are characterized by a relatively coarse vertical resolution
of SBUV, particularly below the ozone peak, and coverage limited to the sunlit
atmosphere. </span></p>
<p class="MsoNormal" style="text-align:justify;text-justify:inter-ideograph"><span style="font-size:11.0pt;font-family:"Arial","sans-serif""><span style> </span>In this presentation we will discuss some
recent changes introduced to ozone assimilation in the GEOS-5 Data
Assimilation System (GEOS-DAS). We will describe a state-dependent approach
to the background error covariance modeling and show how this approach leads
to significant improvements in the representation of ozone in the Upper
Troposphere and Lower Stratosphere. The second part of the talk will be
devoted to assimilation of the Microwave Limb Sounder (MLS) data. Unlike the
SBUV instruments, MLS can measure chemical composition and temperature in
both day and night and possesses a much higher vertical resolution. We will
show how MLS data can improve GEOS-DAS analyses and discuss our current work
on direct assimilation of MLS radiance data in spectral bands sensitive to ozone
and temperature.<span style> </span></span></p>
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<p class="MsoNormal" style="text-align:right" align="right"><b style><span style="font-size:14.0pt">Remote Access</span></b></p>
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<p class="MsoNormal" style><b style><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">Video:</span></b><span style="font-size:10.0pt;font-family:"Arial","sans-serif""> 1.</span><span style="font-size:10.0pt"> </span><span style="font-size:10.0pt;font-family:"Arial","sans-serif"">Go to </span><span style="font-size:10.0pt"><a href="https://star-nesdis-noaa.webex.com/"><span style="font-family:"Arial","sans-serif"">JCSDA Seminar</span></a> and click on
the seminar title</span><span style="font-size:10.0pt;font-family:"Arial","sans-serif""><br>
2. Enter your name and email address. <br>
3. Enter the meeting password: JCSDAseminars707<br>
4. Click "Join Now". <br>
5. Follow the instructions that appear on your screen. <br>
<b style>Audio: </b>USA participants:
1-866-715-2479, Passcode: 9457557<br>
International:
1-517-345-5260</span></p>
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<p class="MsoNormal" style="text-align:right" align="right"><b style><span style="font-size:14.0pt">Contact</span></b></p>
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<p class="MsoNormal" style><span style="font-size:10.0pt">If you would like to present a seminar contact <a href="mailto:George.Ohring@noaa.gov">George.Ohring@noaa.gov</a></span></p>
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<p class="MsoNormal" style="text-align:right" align="right"><b style><span style="font-size:14.0pt">Seminar Files</span></b></p>
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<p class="MsoNormal" style><span style="font-size:10.0pt">Slides available prior to, and audio recording after, the presentation at <a href="http://www.jcsda.noaa.gov/JCSDASeminars.php">http://www.jcsda.noaa.gov/JCSDASeminars.php</a></span></p>
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