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<big>JCSDA Seminars are now webcast. See details below.</big><br>
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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><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><o:p></o:p></p>
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<p class="MsoNormal" style=""><b><span style="font-size: 20pt;">Cloud
and Precipitation Retrievals from TRMM and GPM Satellites – The Impact
of A-priori Information</span></b><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><o:p></o:p></p>
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<p class="MsoNormal" style=""><st1:place w:st="on"><st1:PlaceName
w:st="on"><b><span style="font-size: 16pt;">Christian</span></b></st1:PlaceName><b><span
style="font-size: 16pt;"> <st1:PlaceName w:st="on">Kummerow</st1:PlaceName><br>
<st1:PlaceName w:st="on">Colorado</st1:PlaceName> <st1:PlaceType
w:st="on">State</st1:PlaceType> <st1:PlaceType w:st="on">University</st1:PlaceType></span></b></st1:place><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><o:p></o:p></p>
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<p class="MsoNormal" style=""><st1:date year="2009" day="16"
month="12" w:st="on"><b><span style="font-size: 16pt;">Wednesday,
December 16, 2009</span></b></st1:date><br>
<st1:time minute="0" hour="14" w:st="on">2:00 – 3:00 P.M.</st1:time><br>
World Weather Building, <b><span style="color: red;">Room 707</span></b>,
<st1:address w:st="on"><st1:Street w:st="on">5200 Auth Road</st1:Street>,
<st1:City w:st="on">Camp Springs</st1:City>, <st1:State
w:st="on">MD</st1:State> <st1:PostalCode w:st="on">20746</st1:PostalCode></st1:address><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><o:p></o:p></p>
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<p class="MsoNormal" style="text-align: justify;"><span style="">Satellite
precipitation retrievals are fundamentally underconstrained.<span
style=""> </span>Regardless of whether retrievals use infrared,
passive microwave, radar, or any combination of the above sensors,
there are simply more free parameters associated with precipitation
than can be retrieved from currently available satellites.<span style="">
</span>A-priori information must be added in the inversion
procedure.<span style=""> </span>This can range from simple cloud
caricatures to cloud profile databases derived from models or field
observations to interactively derived structures as might be done in
rainfall assimilation.<span style=""> </span>This talk will focus on
the a-priori cloud profile information being developed for current and
future precipitation sensors and missions (e.g. SSMI, AMSR-E, TRMM and
GPM).<span style=""> </span>From these databases, both optimal
estimation and Bayesian schemes are used to “retrieve” clouds and
precipitation structures.<span style=""> </span>These databases of
observed cloud structures, however, can also be compared to output from
ECMWF’s forecast and analysis of precipitation.<span style=""> </span>The
talk will conclude by comparing retrieved cloud structures with ECMWF
‘first guess’ and ‘analyzed’ structures for an oceanic convective
system observed by SSMI.</span><o:p></o: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><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
moz-do-not-send="true"
href="https://star-nesdis-noaa.webex.com/mw0305l/mywebex/default.do?service=1&siteurl=star-nesdis-noaa&nomenu=true&main_url=%2Fmc0800l%2Fe.do%3Fsiteurl%3Dstar-nesdis-noaa%26AT%3DMI%26EventID%3D131443797%26UID%3D-1%26Host%3D17efd4f51a031c2c0e5e44%26FrameSet%3D2%252">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:place w:st="on"><st1:country-region
w:st="on">USA</st1:country-region></st1:place> participants:
1-866-715-2479, Passcode: 9457557<br>
International: 1-517-345-5260<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><o:p></o:p></p>
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<p class="MsoNormal" style="">George Ohring, <a
moz-do-not-send="true" href="mailto:George.Ohring@noaa.gov">George.Ohring@noaa.gov</a><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><o:p></o:p></p>
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<p class="MsoNormal" style="">Available at <a
moz-do-not-send="true"
href="http://www.jcsda.noaa.gov/JCSDASeminars.php">http://www.jcsda.noaa.gov/JCSDASeminars.php</a>
the day before the talk.<o:p></o:p></p>
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