[Proflist] Joint Center for Satellite Data Assimilation Seminar, January 21st: John McCormack

[Ana Carrion - NOAA Affiliate]

*JCSDA Seminar*

*Title*

*Reducing Model Bias in a High Altitude Forecast System*

*Speaker*

*John McCormack*

Upper Atmospheric Physics Branch, Space Sciences Division, Naval Research
Laboratory (NRL)

*Date,  Time & Place*

*January 21, 2015, 2:00pm - 3:00pm*
Conference Center, NOAA Center for Weather and Climate Prediction, 5830
University Research Court, College Park, MD

*Abstract*

A prototype high-altitude numerical weather prediction (NWP) and data
assimilation (DA) system has recently been developed based on the
operational Navy Global Environmental Model (NAVGEM) that can generate
global synoptic meteorological analyses every 6 hours from the ground to
the lower thermosphere (~100 km altitude). In addition to assimilating
operational meteorological observations in the 0-50 km altitude range, this
high-altitude version of NAVGEM can also assimilate temperature and
constituent measurements throughout the stratosphere and mesosphere
obtained from satellite-based instruments. This presentation will discuss
changes in the forecast model introduced to improve model accuracy and thus
minimize bias at high altitudes. Results from this new system show how it
can be used to (1) provide improved initial conditions for
stratosphere-resolving NWP and climate models; and (2) investigate
dynamical coupling between the troposphere, stratosphere, and mesosphere. A
challenge facing high-altitude NWP efforts is the scarcity of operational
satellite observations above 50 km. The importance of these types of
observations for planned development of unified ground-to-space forecast
systems will also be discussed.

*Remote Access*

*Video:** 1. **Go to **JCSDA Seminar* <https://star-nesdis-noaa.webex.com/>*
and click on the seminar title*





*2. Enter your name and email address. 3. No password is necessary 4. Click
"Join Now". 5. Follow the instructions that appear on your screen. Audio:
USA participants: 1-866-715-2479,  Passcode: 9457557
International:                    1-517-345-5260*

*Contact*

If you would like to present a seminar contact Erin.Jones at noaa.gov

*Seminar Files*

Slides available prior to, and audio recording after, the presentation at
http://www.jcsda.noaa.gov/JCSDASeminars.php



-- 

*Ana Carrion*
National Oceanic and Atmospheric Administration
Program Support Specialist
Riverside (RTi) at NOAA/NESDIS/STAR/JCSDA
NCWCP, E/RA, Room #2652
5830 University Research CT
College Park, MD 20740-3818

Email: Ana.Carrion at noaa.gov
*Main Line**: 301-683-3520*
*JCSDA Front Office: 301-683-3615*
Fax: 301-683-3526
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