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<p align="center" style="text-align:center"><b><span style="font-size:36pt;font-family:Cambria,serif;color:rgb(108,63,181)">JCSDA Seminar</span></b></p>
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<p align="right" style="text-align:right"><b><span style="font-size:14pt">Title</span></b></p>
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<p><b><span style="font-size:18pt;font-family:Arial,sans-serif">Estimation
of Surface Fluxes of Carbon and Heat from Atmospheric Data Assimilation</span></b><b><span style="font-size:18pt;font-family:Arial,sans-serif"></span></b></p>
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<p align="right" style="text-align:right"><b><span style="font-size:14pt">Speaker</span></b></p>
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<p><b><span style="font-family:Arial,sans-serif"><font size="4">Eugenia
Kalnay</font><span style="font-size:19px"><br></span></span></b><span style="font-family:Arial,sans-serif;font-size:11pt">Distinguished
University Professor<br></span><span style="font-family:Arial,sans-serif;font-size:11pt">Department of
Atmospheric and Oceanic Science<br></span><span style="font-family:Arial,sans-serif;font-size:11pt">University of
Maryland</span></p>
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<p align="right" style="text-align:right"><b><span style="font-size:14pt">Date,
Time & Place</span></b></p>
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<p><b><span style="font-size:14pt;font-family:Arial,sans-serif">Wednesday, August 14, 2:00 –3:00 PM</span></b><span style="font-size:11pt;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 align="right" style="text-align:right"><b><span style="font-size:14pt">Abstract</span></b></p>
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<p> We succeeded in estimating surface CO2
fluxes at the model grid-scale resolution by assimilating meteorological
variables and CO2 simultaneously every 6 hours with the Local Ensemble
Transform Kalman Filter (LETKF). This
was done as an observing system simulation experiment (OSSE) using the SPEEDY
AGCM coupled with the LETKF-C. The (unmeasured) surface fluxes are estimated
with the state vector augmentation method, as if they were evolving model
parameters. The simultaneous ensemble Kalman filter data assimilation allows considering
the transport errors on atmospheric CO2 forecast. Taking a short window (6hr)
rather than the very long windows (months) normally used in inversion methods
avoids blurring the impact of the surface fluxes on the near surface CO2. </p>
<p> The LETKF-C, including several
advanced techniques that were developed within this research (Kang et al., JGR
2011, JGR 2012) will be discussed. We also explored the possibility of
estimating surface fluxes of heat, moisture and momentum using the same
methodology, and OSSE experiments are also encouraging. Based on these results,
we coupled our LETKF-C data assimilation system with the NCAR CAM 3.5 model and
preliminary results are very good. </p>
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<p align="right" style="text-align:right"><b><i><span style="font-size:14pt">Remote Access</span></i></b><i></i></p>
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<p><b><i><span style="font-size:11pt;font-family:Arial,sans-serif">Video:</span></i></b><i><span style="font-size:11pt;font-family:Arial,sans-serif">
1.</span> </i><i><span style="font-size:11pt;font-family:Arial,sans-serif">Go to </span></i><a href="https://star-nesdis-noaa.webex.com/" target="_blank"><i><span style="font-size:10pt;font-family:Arial,sans-serif">JCSDA Seminar</span></i></a><i> and click on the seminar title</i><i><span style="font-size:10pt;font-family:Arial,sans-serif"><br>
</span></i><i><span style="font-size:11pt;font-family:Arial,sans-serif">2. Enter your name and email address. <br>
3. No password is necessary<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 align="right" style="text-align:right"><b><span style="font-size:14pt">Contact</span></b></p>
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<p>If you would like to present a seminar contact <a href="mailto:Kevin.Garrett@noaa.gov" target="_blank">Kevin.Garrett@noaa.gov</a></p>
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<p align="right" style="text-align:right"><b><span style="font-size:14pt">Seminar Files</span></b></p>
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<p>Slides available prior to, and audio recording after, the
presentation at <a href="http://www.jcsda.noaa.gov/JCSDASeminars.php" target="_blank">http://www.jcsda.noaa.gov/JCSDASeminars.php</a></p>
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<font face="arial, helvetica, sans-serif" color="#6600cc"><span style><b><i>Ana Carrion</i></b></span></font></div><div style="text-align:left"><span style><font size="1" face="arial, helvetica, sans-serif">National Oceanic and Atmospheric Administration</font></span></div>
<div style="text-align:left"><font style size="1" face="arial, helvetica, sans-serif">Program Support Specialist</font></div><div style="text-align:left"><font style size="1" face="arial, helvetica, sans-serif">Riverside (RTi) at NOAA/NESDIS/STAR/JCSDA</font></div>
<div style="text-align:left"><font style size="1" face="arial, helvetica, sans-serif">NCWCP, E/RA, Room #2600</font></div><div style="text-align:left"><font style size="1" face="arial, helvetica, sans-serif">5830 University Research CT</font></div>
<div style="text-align:left"><font style size="1" face="arial, helvetica, sans-serif">College Park, MD 20740-3818</font></div><div style="text-align:left"><font style size="1" face="arial, helvetica, sans-serif"><br>
</font></div><div style="text-align:left"><font style 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"><font style size="1" face="arial, helvetica, sans-serif"><b>JCSDA Main: 301-683-3615</b></font></div><div style="text-align:left"><font style size="1" face="arial, helvetica, sans-serif"><b>Direct: 301-683-3520</b></font></div>
<div style="text-align:left"><font style 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>
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