CISL Leadership Team

The CISL Leadership Team works to ensure that scientists have the resources and services they need to pursue research into the complex processes that make up the Earth system, from the ocean floor and atmosphere to the Sun's core.

The CISL Leadership Team also encourages and supports CISL's ongoing and important work as a member of the local, regional, and national cyberinfrastructure community as well as the community at large.

Leadership

Dr. Thomas Hauser
CISL Director

303-497-1837 or thauser@ucar.edu

Thomas Hauser is the director of the Computational and Information Systems Laboratory (CISL) at the NSF National Center for Atmospheric Research. In this role, he is responsible for the state-of-the-art supercomputing, data, analysis, and visualization services supporting the Earth system science community. He also oversees the research and development activities in emerging technologies, software engineering, computational science, machine learning, and data assimilation to sustain progress in Earth system science. Before joining CISL, Hauser was the director of Research Computing at the University of Colorado Boulder, one of the two founding executive directors of the Center for Research Data and Digital Scholarship, and a CU Boulder Libraries faculty member. He earned his Ph.D. in mechanical engineering, specializing in computational fluid dynamics, from the University of Technology in Munich, Germany.

Irfan Elahi, Director
High-Performance Computing Division

303-497-1831 or irfan@ucar.edu

Irfan Elahi oversees the High-Performance Computing Division (HPCD), which is responsible for systems engineering, administration, management, and advanced user support for the computational and storage resources and services CISL provides to NSF NCAR and UCAR member institutions. HPCD provides resources and services for computation, data analysis, data post-processing, visualization, and large-scale data sharing. Irfan has a B.S. in Mechanical Engineering from the University of Engineering and Technology, Taxila, and more than 30 years’ experience in architecting, deploying, and managing high-performance computing and storage resources.

Doug Schuster, Section Manager
Information Science and Services Section

303-497-1216 or schuster@ucar.edu

Doug Schuster is the section manager of CISL’s Information Science and Services Section (ISS). ISS develops and maintains services that enable search and discovery of NSF NCAR’s data assets, support data-proximate computational research, and provide long-term preservation and access to the rich variety of observational data sets and model outputs produced and hosted at NSF NCAR. Additionally, ISS offers consulting services to its data services users and assists NSF NCAR researchers in developing data management plans that meet community open science expectations. Doug earned his bachelor’s degree in civil engineering at the University of Minnesota, Twins Cities, and an M.S. in atmospheric science at Colorado State University in Fort Collins. 

Amy Bauer, Assistant Director of Administration, Lead Lab Administrator

303-497-1258 or abauer@ucar.edu

Amy Bauer leads the administrative staff and processes for CISL, including oversight of the NCAR-Wyoming Supercomputer Center and UCAR Communications Pool budget function, and provides strategic planning, budget and human resources leadership for the lab. She joined UCAR Finance in 1995, was a member of the NSF NCAR High Altitude Observatory administrative team from 1997 to 2002, and has been with CISL since 2003. Amy has a B.S. in Finance from Regis University.

Sheri Voelz
Section Manager, Applied Computational Science Section (ACS)

303-497-1202 or mickelso@ucar.edu

ACS focuses on advancing the performance and sustainability of NSF NCAR's modeling infrastructure. Her group is responsible for porting models to GPUs, optimizing I/O workflows, compressing scientific data, evaluating code correctness, and researching emerging computing technology. Sheri has over 25 years of experience as a research software engineer, starting her career at Argonne National Laboratory in 2000 and joining CISL in 2014. She holds an M.S. in Computer Science from Colorado State University.

Bill Anderson
Section Manager, HPC Systems Group (HSG)

303-497-1243 or andersnb@ucar.edu

Bill manages the HPC Systems Group, which is responsible for the systems engineering and administration of the HPC/AI compute clusters, storage systems, and networking infrastructure. The group's portfolio includes two compute clusters (Derecho and Casper); multiple parallel file systems (including Storage Scale and Lustre-based systems); an object storage platform; a tape-based archival system; and a high-speed Ethernet backbone that interconnects the HPC environment. The team also supports a range of user-facing services such as Globus, JupyterHub, and an Open Science Data Federation data platform. Bill holds a B.S. in physics from the University of Chicago and an M.S. in computer science from the University of Colorado Boulder, and has more than 30 years of experience in systems engineering and software development.

Jeff Anderson
Section Head, Data Assimilation Research Section (DAReS)

303-497-8991 or jla@ucar.edu

Jeff is head of the Data Assimilation Research Section in CISL. He has been at NCAR since 2001 leading development of the Data Assimilation Research Testbed (DART). Before that, he was in charge of model development efforts at NOAA's Geophysical Dynamics Lab. He has a Master's in Computer Science from Berkeley and a PhD in Atmospheric and Oceanic Sciences from Princeton University.

John Clyne
Section Manager, Intelligent Methods, Prediction, Analysis, and Community Tools (IMPACT)

303-497-1236 or clyne@ucar.edu

John Clyne leads CISL's Intelligent Methods, Prediction, Analysis, and Community Tools (IMPACT) section. IMPACT's mission is to empower the Earth sciences by harnessing the full potential of Artificial Intelligence and Machine Learning (AI/ML), combined with NSF NCAR's expertise and its advanced computing and data resources. IMPACT staff conduct applied AI/ML research, develop robust and scalable tools tailored to geoscience workflows, and evaluate emerging technologies for trustworthiness, performance, and relevance.

John began his career at NSF NCAR in 1987 while completing his M.S. in computer science at the University of Colorado Boulder. His long career at NSF NCAR is driven by a passion for applying broad technical expertise to help better understand our planet and improve life on Earth for all.