[Proflist] Joint Center for Satellite Data Assimilation Seminar, June 8th: Yannick Tremolet

[Ana Carrion - NOAA Affiliate]

*JCSDA Seminar*

*Title*

*Software Infrastructure for Future Numerical Weather Prediction*

*Speaker*

*Yannick Tremolet*

European Centre for Medium-Range Weather Forecasting (ECMWF)

*Date,  Time & Place*

*June 8, 2015, 2:00pm - 3:00pm*
Conference Center, NOAA Center for Weather and Climate Prediction, 5830
University Research Court, College Park, MD

*Abstract*

Over the years, operational data assimilation and forecasting systems are
becoming more and more complex. Complexity arises from advances in data
assimilation methodology, such as weak-constraint 4D-Var, ensemble data
assimilation methods, and hybrids between those. Another source of added
complexity is the development of more and more complex Earth system
representations in the operational NWP systems, including land surface,
waves, sea-ice, ocean and atmospheric composition. The supercomputers we
use to run these forecasting systems are also becoming more and more
difficult to use efficiently with many more cores than in the past and
possibly heterogeneous architectures. Finally, in many cases, the systems
are shared by several institutions, with more and more scientists and
developers working in parallel, often adding to the complexity of
maintaining the codes.

To address this increasing complexity, a new software infrastructure, the
object-oriented prediction system (OOPS) has been developed. It is
developed and validated with simplified models, and several conventional
and experimental data assimilation algorithms have been implemented. The
components of the operational IFS are progressively being moved into the
new structure. The design choices for the new software infrastructure will
be presented.

*Remote Access*

*Video:** 1. **Go to **JCSDA Seminar* <https://star-nesdis-noaa.webex.com/>
*2. Enter the event number:* *993 192 535*




* 3. Password is JCSDA 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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