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<p class="MsoNormal" align="center" style="text-align:center"><b><span style="font-size:36.0pt;font-family:"Cambria","serif";color:#6c3fb5">JCSDA
Seminar</span></b></p>
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<p class="MsoNormal" align="right" style="text-align:right"><b><span style="font-size:14.0pt">Title</span></b></p>
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<p class="MsoNormal"><b><span style="font-size:14.0pt;font-family:"Arial","sans-serif"">A
Severe Weather QuickOSSE to Examine the Impact of Super Constellations of GPS
Radio Occultation Satellites</span></b></p>
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<p class="MsoNormal" align="right" style="text-align:right"><b><span style="font-size:14.0pt">Speaker</span></b></p>
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<p class="MsoNormal"><b><span style="font-size:14.0pt;font-family:"Arial","sans-serif"">Mark Leidner</span></b></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Arial","sans-serif"">Atmospheric
and Environmental Research (AER)</span></p>
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<p class="MsoNormal" align="right" style="text-align:right"><b><span style="font-size:14.0pt">Date, Time & Place</span></b></p>
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<p class="MsoNormal"><b><span style="font-size:14.0pt;font-family:"Arial","sans-serif"">August
19, 2015, 2:00pm - 3:00pm</span></b><span style="font-size:11.0pt;font-family:"Arial","sans-serif""><br>
Conference Center, NOAA Center for Weather and Climate Prediction, 5830 University Research Court, College
Park, MD</span><span style="font-family:"Arial","sans-serif""></span></p>
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<p class="MsoNormal" align="right" style="text-align:right"><b><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;text-autospace:none"><a name="_GoBack"></a><span style="font-size:11.0pt">In our simulation study, we
use the Observing System Simulation Experiment (OSSE) framework to measure
the impact of vastly increased numbers of GNSS RO profiles on weather
analysis and forecasting. Our study focuses on severe convective weather in
the State of Oklahoma, part of the so-called “tornado alley” because of the
frequent bouts of severe weather it experiences each year. The case of
interest is the May 31, 2013 “El Reno” tornado, because this event produced
both an EF3 tornado and flash flooding in Oklahoma City, Oklahoma. We use the
Weather Research and Forecasting (WRF) model to compute a 2 km nature run,
i.e., the “truth” in our study. And we
use a 24-member, physics-based ensemble of 18-km-resolution WRF models, along
with an Ensemble Kalman Filter (EnKF) to blend the simulated observations
with the ensemble mean <i>a priori</i> model state vector. We use the
WRF-DART ensemble data assimilation system to manage the hourly, cycling data
assimilation and for its non-local, excess phase observation operator for RO
data.</span></p>
<p class="MsoNormal" style="text-align:justify;text-justify:inter-ideograph;text-autospace:none"><span style="font-size:11.0pt"> </span></p>
<p class="MsoNormal" style="text-align:justify;text-justify:inter-ideograph;text-autospace:none"><span style="font-size:11.0pt">We simulate future constellations of RO satellites
that can produce up to 2.5 million profiles/day globally. We will show
analysis and forecast impacts of greatly increased numbers of RO profiles.
The analysis impacts on lower tropospheric moisture fields in particular will
be highlighted, as well as impacts on convective initiation in the forecasts.
</span></p>
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<p class="MsoNormal" align="right" style="text-align:right"><b><i><span style="font-size:14.0pt">Remote
Access</span></i></b><i></i></p>
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<p class="MsoNormal"><b><i><span style="font-size:11.0pt;font-family:"Arial","sans-serif"">Video:</span></i></b><i><span style="font-size:11.0pt;font-family:"Arial","sans-serif""> 1.</span> </i><i><span style="font-size:11.0pt;font-family:"Arial","sans-serif"">Go to </span></i><a href="https://star-nesdis-noaa.webex.com/"><i><span style="font-size:11.0pt;font-family:"Arial","sans-serif"">JCSDA Seminar</span></i></a><i> </i><i><span style="font-size:10.0pt;font-family:"Arial","sans-serif""><br>
</span></i><i><span style="font-size:11.0pt;font-family:"Arial","sans-serif"">2. Enter the event number:</span></i> <b><i><span style="font-size:11.0pt;font-family:"Arial","sans-serif"">999 299 037</span></i></b><i><span style="font-size:11.0pt;font-family:"Arial","sans-serif"">
<br>
3. Password is<b> JCSDA</b><br>
4. Click "Join Now". <br>
5. Follow the instructions that appear on your screen. <br>
<b>Audio: </b>USA participants:
1-866-715-2479, Passcode: 9457557<br>
International:
1-517-345-5260</span></i><i><span style="font-family:"Arial","sans-serif""></span></i></p>
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<p class="MsoNormal" align="right" style="text-align:right"><b><span style="font-size:14.0pt">Contact</span></b></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Arial","sans-serif"">If you would like to present a
seminar contact </span><a href="mailto:Erin.Jones@noaa.gov"><span style="font-size:11.0pt;font-family:"Arial","sans-serif"">Erin.Jones@noaa.gov</span></a><span style="font-size:11.0pt;font-family:"Arial","sans-serif""></span></p>
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<p class="MsoNormal" align="right" style="text-align:right"><b><span style="font-size:14.0pt">Seminar Files</span></b></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Arial","sans-serif"">Slides available prior to, and audio
recording after, the presentation at </span><a href="http://www.jcsda.noaa.gov/JCSDASeminars.php"><span style="font-size:11.0pt;font-family:"Arial","sans-serif"">http://www.jcsda.noaa.gov/JCSDASeminars.php</span></a><span style="font-size:11.0pt;font-family:"Arial","sans-serif""></span></p>
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<p class="MsoNormal"> </p></div><div><br></div>-- <br><div class="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div style="text-align:left"><br></div><div style="text-align:left"><font color="#6600cc" face="verdana, sans-serif"><span style="background-color:rgb(255,255,255)"><b><i>Ana Carrion</i></b></span></font></div><div style="text-align:left"><span style="background-color:rgb(255,255,255)"><font size="1" face="arial, helvetica, sans-serif">National Oceanic and Atmospheric Administration</font></span></div><div style="text-align:left"><font style="background-color:rgb(255,255,255)" size="1" face="arial, helvetica, sans-serif">Program Support Specialist</font></div><div style="text-align:left"><font style="background-color:rgb(255,255,255)" size="1" face="arial, helvetica, sans-serif">Riverside (RTi) at NOAA/NESDIS/STAR/JCSDA</font></div><div style="text-align:left"><font style="background-color:rgb(255,255,255)" size="1" face="arial, helvetica, sans-serif">NCWCP, E/RA, Room #2652</font></div><div style="text-align:left"><font style="background-color:rgb(255,255,255)" size="1" face="arial, helvetica, sans-serif">5830 University Research CT</font></div><div style="text-align:left"><font style="background-color:rgb(255,255,255)" size="1" face="arial, helvetica, sans-serif">College Park, MD 20740-3818</font></div><div style="text-align:left"><font style="background-color:rgb(255,255,255)" size="1" face="arial, helvetica, sans-serif"><br></font></div><div style="text-align:left"><font style="background-color:rgb(255,255,255)" size="1" face="arial, helvetica, sans-serif">Email: <a href="mailto:Ana.Carrion@noaa.gov" target="_blank">Ana.Carrion@noaa.gov</a></font></div><div style="text-align:left"><b style="font-family:arial,helvetica,sans-serif;font-size:x-small"><font color="#cc0000">Main Line</font></b><b style="font-family:arial,helvetica,sans-serif;font-size:x-small">: 301-683-3520</b></div><div style="text-align:left"><font style="background-color:rgb(255,255,255)" size="1" face="arial, helvetica, sans-serif"><b>JCSDA Front Office: 301-683-3615</b></font></div><div style="text-align:left"><font style="background-color:rgb(255,255,255)" size="1" face="arial, helvetica, sans-serif">Fax: 301-683-3526</font></div><div style="text-align:left"><font face="georgia, serif"><br></font></div></div></div></div></div>
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