iCAS Symposium 2019

International Computing in the Atmospheric Sciences

Sep. 8 to Sep. 12, 2019

9:00 am – 4:00 pm MDT

Stresa, Italy

Machine learning, CMIP6 take the iCAS stage

International Computing for the Atmospheric Sciences Symposium

More than 50 attendees from around the world heard about machine learning efforts and CMIP6 progress at sites worldwide at the 2019 International Computing in the Atmospheric Sciences (iCAS) symposium, September 8-12, in Stresa, Italy.

The symposium’s themes included machine learning, CMIP6, storage and computing in the cloud, and new technologies, but machine learning permeated many presentations. From Richard Gerber’s discussion on Monday of the machine learning use cases to be served by the Perlmutter system being acquired by the US Department of Energy’s National Energy Research Supercomputing Center (NERSC) to Niall Robinson’s Thursday talk on machine learning at the UK Met Office, machine learning is clearly on the rise at centers around the world.

Attendees also learned about the technical, philosophical, and data management challenges related to the construction and operations of the Daniel K. Inouye Solar Telescope (DKIST) in a Wednesday keynote by Alisdair Davey, Data Center Scientist for the DKIST project at the US National Solar Observatory.

The iCAS symposium strives to bring together an international group of center directors and specialists from the atmospheric and related geosciences communities to discuss advances in the ever changing computing landscape. 

​Anke Kamrath & David Hart

iCAS 2019



Please see each day for specific information

3:00-5:00pm     Early Registration

5:00-7:00pm     Welcome Reception

9:00am    Welcome Coffee

9:45am    Opening Remarks/Anke Kamrath

10:00am "Present State and Future of Computing at ECMWF"

                Martin Palkovič


10:30am  Break

11:00am "NERSC 9: A Pre-Exacscale System for Simulation, Data, and Learning"

                Richard Gerber

                National Energy Research Scientific Computing Center


11:30am  Vendor- Cray

              "Cray's Vision for converged architectures and emerging HPC technologies"

                Ilene Carpenter

12:00pm Lunch

1:30pm   Vendor- PGI

              "PGI Compiler Assisted Software Testing"

               Dave Norton

2:00pm  "Applying Data Analytics and Machine Learning to Storage Systems to Help Meet Organizational Goals"

               Bill Anderson


2:30pm "The New Innovation Game: Rebooting Infrastructure for more productive Climate, Weather, Earth, and Environmental Systems Research"

              Ben Evans

              National Computational Infrastructure (Australia)

3:00pm  Break

3:30pm "Data Assimilation using the US National Water Model: Application to Hurricane Florence"

              Moha el Gharamti


4:00pm "Pangeo: The quest to give scientists back their flow"

              Niall Robinson

              UK Met Office Informatics Lab

4:30pm "Climate modeling workflow at IPSL: Producing (a lot of) CMIP6 simulations and making sense of them"

              Sébastien Denvil

              Institute Pierre Simon Laplace (IPSL)

5:00pm Reception

8:00am    Welcome Coffee

9:00am   "NCAR's CMIP6 Efforts"

                Sheri Mickelson


9:30am   "Ultra-high resolution supercell simluations visualized with Vapor 3"

                Leigh Orf

                University of Wisconsin

10:00am "How to use deep learning in weather and climate models"

                Peter Dueben

                European Centre for Medium-range Weather Forecasts


10:30am  Break

11:00am  Vendor-Mellanox

                "InfiniBand In-Network Computing Technology for Compute Intensive Applications"

                 Richard Graham

11:30am "Accelerating Improvements cycle in the climate

               modeling enterprise"

                Antonio Navarra

                Euro-Mediterranean Center for Climate Change (CMCC)

12:00pm "Status of climate prediction and future challenges"

                François Counillon

                Nansen Environmental and Remote Sensing Center


12:30pm  Afternoon off

2:00pm   Bus leaves for Lake Orta Excursion

               ~4 hour excursion

8:00am    Welcome Coffee

9:00am    "The Daniel K. Inoue Solar Telescope (DKIST): A Next Generation Ground Based Solar Telescope"

                 Alisdair Davey

                 National Solar Observatory

10:00am "Machine Learning and Data Driven HPC at NCAR: Strategy and State of Play"

                Rich Loft


10:30am  Break

11:00am "CMIP6 data infrastructure at DKRZ"

               Stephan Kindermann

               German Climate Computing Centre (DKRZ)

11:30am  Vendor- ARM

              "Applications performance on Arm HPC architecture"

               Phil Ridley

12:00pm Lunch

1:30pm   Vendor- NVIDIA

             "GPU Benefits for Applications in Weather and Climate"

              Stan Posey and David Hall

2:00pm "Evolving HPC and application design toward a couple data assimilation system at NASA suitable for emerging Exascale platforms"

              William Putman


2:30pm "ESiWACE, the Center of Excellence in Simulation of Weather and Climate in Europe"

              Joachim Biercamp


3:00pm  Break

3:30pm  Vendor- Intel

             “Insight into Intel innovations that will bring enhancement for HPC applications”

              Andrea Luiselli

4:00pm "Insights into Cloud Technologies and Machine Learning for Scientific Data"

              Sara Graves

              University of Alabama, Huntsville

4:30pm  "Toward Global Mesoscale Climate Prediction"

              James Kinter

              Center for Ocean-Land-Atmosphere Studies

5:00pm   Adjourn until Banquet

7:00pm   Banquet

8:00am    Welcome Coffee

9:00am   "Machine Learning at the Met Office"

                Niall Robinson

                UK Met Office Informatics Lab

9:30am    "E3SM Data Management and Publication"

                 Rick Wagner


10:00am   "The Future of Scientific Observation: Artificial

                  Intelligence at the Edge"

                 Pete Beckman

                 Argonne National Laboratory

10:30am  Break

11:00am "NCAR Plan for Science at Scale"

               Jeff de La Beaujardiere


11:30am  "New Frontiers in CI and Computing for Climate and Weather Applications and How They Relate to the NSF Ten Big Ideas"

                Subashree Mishra

                U.S. National Science Foundation

12:00pm  Lunch

1:30pm   "The Current Status of High Performance Computing and CMIP6 at CMA"

                Dr. Wang Bin

                National Meteorological Information Centre, CMA

2:00pm  "NCAR's Next Procurement: Meeting User's Reliability and Storage Demands"

               David Hart


2:30pm   "Preliminary Study Result of Purpose Build Computing for Weather and Climate Models"

                Tsengdar Lee


3:00pm   Concluding Remarks/Anke Kamrath

3:30pm   Farewell Reception


The following participated in iCAS2019.

For additional contact information please contact either Kristi Hartsock or Joan Fisher

Adamidis, Panagiotis

DKRZ / German Climate Computing Center

Andersen, Aaron


Anderson, Bill


Beckman, Pete

Argonne National Laboratory

Bin, Wang

National Meteorological Information Center

Carpenter, Ilene


Clune, Thomas


Counillon, Francois

NERSC / University of Bergen

Davey, Alisdair

National Solar Observatory

de La Beaujardiere, Jeff


Denvil, Sebastien


Dueben, Peter


Duffy, Daniel


Evans, Ben

NCI Australia

Fisher, Joan


Gerber, Richard

NERSC / Lawrence Berkeley Laboratory

Graham, Richard

Mellanox Technologies

Graves, Sara

University of Alabama in Huntsville

Hall, David


Hart, David


Hartsock, Kristi


Inoue, Takahiro


Kamrath, Anke


Kindermann, Dr. Stephan

Deutsche Klimarechenzentrum GmbH

Kinter, Jim

COLA / George Mason University

Kotamarthi, Veerabhadra Rao

Argonne National Laboratory 

Lee, Tsengdar


Li, Heng

Tsinghua University

Loft, Dr. Richard


Ludwig, Thomas

German Climate Computing Center



Mishra, Subhashree


Norton, Dave


Orf, Leigh

University of Wisconsin, Madison  / SSEC

Palkovic, Martin


Posey, Stan


Putman, William


Ramos, Bonnie

Alliance Technology

Robinson, Niall

Met Office

Rosenbloom, Nan


Saarinen, Sami


Wagner, Rick


Weger, Isabella


WU, Huanping

National Climate Center / CMA

ZUO, Haojia

Tsinghua University

Participant Code of Conduct

iCAS 2019 Symposium — Stresa, Italy — 8–12 Sept. 2019

Our Pledge 

UCAR and NCAR are committed to providing a safe, productive, and welcoming environment for all participants in any conference, workshop, field project or project hosted or managed by UCAR, no matter what role they play or their background. This includes respectful treatment of everyone regardless of gender, gender identity or expression, sexual orientation, disability, physical appearance, age, body size, race, religion, national origin, ethnicity, level of experience, political affiliation, veteran status, pregnancy, genetic information, as well as any other characteristic protected under state or federal law.

All participants (and guests) are required to abide by this Code of Conduct. This Code of Conduct is adapted from the one adopted by AGU, complies with the new directive from the National Science Foundation (NSF) and applies to all UCAR related events, including those sponsored by organizations other than UCAR but held in conjunction with UCAR events, in any location throughout the world.

Expected Behavior

  • All participants are treated with respect and consideration, valuing a diversity of views and opinions
  • Be considerate, respectful, and collaborative
  • Communicate openly with respect for others, critiquing ideas rather than individuals
  • Avoid personal attacks directed toward other participants
  • Be mindful of your surroundings and of your fellow participants
  • Alert UCAR staff and suppliers/vendors if you notice a dangerous situation or someone in distress
  • Respect the rules and policies of the workshop, conference, field project site, hotels, UCAR contracted facility, or any other venue

 Unacceptable Behavior includes, but is not limited to:

  • Harassment, intimidation, or discrimination in any form
  • Physical or verbal abuse by anyone to anyone, including but not limited to a participant, member of the public, guest, member of any institution or sponsor
  • Unwelcome sexual attention or advances
  • Personal attacks directed at other guests, members, participants, etc.
  • Alarming, intimidating, threatening, or hostile comments or conduct
  • Inappropriate use of nudity and/or sexual images in public spaces or in presentations
  • Threatening or stalking anyone, including a participant
  • Other conduct which could reasonably be considered inappropriate in a professional setting


  • Anyone requested to stop unacceptable behavior is expected to comply immediately.
  • UCAR staff (or their designee) or security/local police may take any action deemed necessary and appropriate, including immediate removal from the event, conference, workshop, field project, facility without warning or refund.
  • UCAR reserves the right to prohibit attendance at a future event, conference, workshop or field project.
  • Notification of an infraction to a Home Institution. In cases where there has been a potentially serious policy or code of conduct violation UCAR will notify the offender’s home institution.

Reporting Unacceptable Behavior

If you or someone you know is subject to unacceptable and/or unwelcome behavior, or have any other concerns, please contact the on-duty points of contact for this conference, workshop, field project as identified below and who will be on-site and available by email or phone.

●       David Hart (dhart@ucar.edu; c: +1 858-335-5888)

●       Joan Fisher (jfish@ucar.edu; c: +1 303-931-8071)

●       Kristi Hartsock (hartsock@ucar.edu; c: +1 814-571-2233)

Please note that a report to the on-duty point of contact, who is not a UCAR manager or supervisor, is NOT considered filing an official report / complaint with UCAR.

Making a report to any UCAR manager or supervisor is considered an official report to UCAR regardless of whether the manager or supervisor is located on-site or off-site.     

If you wish to file a complaint or report with UCAR, please contact: 

  • Lameece Erwin (lerwin@ucar.edu, w: 303-497-8711) or Neil Barker (nbarker@ucar.edu, w: 303-497-8721) in UCAR’s Human Resources Department; 
  • Carolyn Brinkworth (carolyn@ucar.edu; w: 303-497-1670; c: 720-619-1459), Kristen Luna-Aponte (kaponte@ucar.edu; w: 303-497-1657), or Katy Putsavage (putsavag@ucar.edu; w: 303-497-8844), in UCAR’s Office of Diversity, Equity and Inclusion; or
  • Bob Wiley (rwiley@ucar.edu; w: 303-497-8554) in UCAR’s Health, Environment and Safety & Security Office. 

Participants may also make an anonymous complaint through the UCAR’s EthicsPoint Hotline at UCAR EthicsPoint Hotline or by calling 844-678-2671, toll-free within the United States, Guam, Puerto Rico and Canada. A translator will be made available if needed.

In the event of a complaint involving a UCAR employee, UCAR will follow its Harassment Reporting and Complaint Procedures at: