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<p class="MsoNormal" style="margin-bottom: 12pt;"><span
style="font-size: 13.5pt;">JCSDA
Seminars are now webcast. See details below.</span><o:p></o:p></p>
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style="font-size: 14pt;"> </span></b><u1:p></u1:p><o:p></o:p></p>
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<p class="MsoNormal" style="text-align: center;" align="center"><b><span
style="font-size: 36pt; font-family: Cambria; color: rgb(108, 63, 181);">JCSDA
Seminar</span></b><u1:p></u1:p><o:p></o:p></p>
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<p class="MsoNormal" style="text-align: right;" align="right"><b><span
style="font-size: 14pt;">Title</span></b><u1:p></u1:p><o:p></o:p></p>
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<p class="MsoNormal" style=""><b><span style="font-size: 20pt;">Data
Assimilation of Cloud-Affected Radiances</span></b><u1:p></u1:p><o:p></o:p></p>
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<p class="MsoNormal" style="text-align: right;" align="right"><b><span
style="font-size: 14pt;">Speaker</span></b><u1:p></u1:p><o:p></o:p></p>
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<p class="MsoNormal" style=""><b><span style="font-size: 16pt;">Tomislava
Vukicevic<br>
</span></b><b><span style="font-size: 14pt;">Atlantic
Oceanographic and Meteorological Laboratory (AOML), Oceanic and
Atmospheric Research (OAR), NOAA</span></b><u1:p></u1:p><o:p></o:p></p>
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<p class="MsoNormal" style="text-align: right;" align="right"><b><span
style="font-size: 14pt;">Date, Time & Place</span></b><u1:p></u1:p><o:p></o:p></p>
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<p class="MsoNormal" style=""><st1:date month="1" day="6"
year="2010"><b><span style="font-size: 16pt;">Wednesday, January 6,
2010<br>
</span></b></st1:date><st1:time hour="14" minute="0">2:00 – 3:00
P.M.</st1:time><br>
World Weather Building, <b><span style="color: red;">Room 707</span></b>,
<st1:address><st1:street><st1:address w:st="on"><st1:Street
w:st="on">5200 Auth Road</st1:Street></st1:address>, <st1:City
w:st="on"><st1:city>Camp Springs</st1:city></st1:City>, <st1:State
w:st="on"><st1:state>MD</st1:state></st1:State> <st1:PostalCode
w:st="on"><st1:postalcode>20746</st1:postalcode></st1:PostalCode></st1:street></st1:address><u1:p></u1:p><o:p></o:p></p>
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<p class="MsoNormal" style="text-align: right;" align="right"><b><span
style="font-size: 14pt;">Abstract</span></b><u1:p></u1:p><o:p></o:p></p>
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<p class="MsoNormal" style="text-align: justify;"><span
style="font-size: 10pt;">A summary of research results on assimilation
of GOES (Geostationary Operational Environmental Satellites) Imager
observations into a cloud resolving model will be presented. The
purpose of the research is to evaluate feasibility of atmospheric data
analysis with clouds. The studies were performed using a research data
assimilation algorithm designated Regional Atmospheric Modeling and
Data Assimilation System (RAMDS) that was developed at CIRA
(Cooperative Institute for Research in the Atmosphere) at <st1:stockticker>CSU</st1:stockticker>
(Colorado State University) and at ATOC (department of ATmospheric and
OCeanographic sciences) at CU (University of Colorado) . In RAMDAS a
fully nonlinear 4DVAR (4-dimensional variational) data assimilation
approach is applied to the cloud resolving regional model RAMS
(Regional Atmospheric Modeling System) that includes explicit bulk
parameterization of cloud processes. The observational operator for
GOES imager observations is a system for computing unpolarized
radiative transfer for either collimated solar and/or thermal emission
sources of radiation in both clear and cloudy plane-parallel
conditions. Adjoint models of the cloud resolving and radiative
transfer models include explicit linearization of these nonlinear
models. Overall, the results with RAMDAS indicate that the data
assimilation of the cloud affected geostationary observations is
feasible. The results show improvement in the model representation of
the cloudy atmosphere and consistent change in the dynamical cloud
environment. <o:p></o:p></span><u1:p></u1:p></p>
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<p class="MsoNormal" style="text-align: right;" align="right"><b><span
style="font-size: 14pt;">Remote Access</span></b><u1:p></u1:p><o:p></o:p></p>
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<p class="MsoNormal" style=""><b>Video:</b> 1. <span
style="font-size: 10pt; font-family: Arial;">Click on <a
href="https://star-nesdis-noaa.webex.com/star-nesdis-noaa/j.php?ED=131597137&UID=912952972&PW=b276f8e23a6e63760150411e0d050d1816131909">JCSDA
Seminar</a><br>
2. Enter your name and email address.</span><br>
2. Enter your name and email address. <br>
3. Enter the meeting password: JCSDAseminar2009 <br>
4. Click "Join Now". <br>
5. Follow the instructions that appear on your screen.<span
style="font-size: 10pt; font-family: Arial;"> <br>
</span><b>Audio: </b><st1:country-region><st1:place><st1:country-region
w:st="on"><st1:place w:st="on">USA</st1:place></st1:country-region></st1:place></st1:country-region>
participants: 1-866-715-2479, Passcode: 9457557<br>
International: 1-517-345-5260<u1:p></u1:p><o:p></o:p></p>
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<p class="MsoNormal" style="text-align: right;" align="right"><b><span
style="font-size: 14pt;">Contact</span></b><u1:p></u1:p><o:p></o:p></p>
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<p class="MsoNormal" style="">George Ohring, <a
href="mailto:George.Ohring@noaa.gov">George.Ohring@noaa.gov</a><u1:p></u1:p><o:p></o:p></p>
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<p class="MsoNormal" style="text-align: right;" align="right"><b><span
style="font-size: 14pt;">Seminar File</span></b><u1:p></u1:p><o:p></o:p></p>
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<p class="MsoNormal" style="">Available at <a
href="http://www.jcsda.noaa.gov/JCSDASeminars.php">http://www.jcsda.noaa.gov/JCSDASeminars.php</a>
the day before the talk.<u1:p></u1:p><o:p></o:p></p>
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