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Staff Profiles

Craig Hoffman

Craig Hoffman

Craig is GSL’s Web Engineer. He has worked as an IT Director, senior software engineer, full-stack developer, mountaineering guide, professional photographer, and start-up partner.  His first web development and hosting company produced a SaaS ...

Posted: Oct 28, 2024
Christina Holt

Christina Holt

Christina has spent her career developing and supporting the development of a variety of numerical weather prediction systems. In graduate school, she focused on applying data assimilation techniques to global and regional ensemble prediction ...

Posted: Oct 28, 2024
Ming Hu

Ming Hu

Ming is a Research Physical Scientist who played a key role in development and implementation of the NOAA operational Rapid Refresh (RAP) and High Resolution Rapid Refresh (HRRR) prediction systems. Ming also led the ...

Posted: Oct 28, 2024
Eric James

Eric James

I joined GSL (then GSD) within the Assimilation and Verification Innovation Division (AVID; formerly the Assimilation and Modeling Branch AMB) in 2010.  Since that time, my research interests have revolved around the use of ...

Posted: Oct 28, 2024
Isidora Jankov

Isidora Jankov

My research is mainly focused on ensemble-based data assimilation, the design of ensemble forecasting systems, and ensemble statistical post-processing. As a part of research related to an ensemble forecasting design, for both data assimilation ...

Posted: Oct 28, 2024
Shannon Johnston

Shannon Johnston

I am a fan of hockey, outdoors, and everything IT Security! I cut my teeth in the financial industry for 10 years before coming to NOAA. I have extensive experience in the security world ...

Posted: Oct 28, 2024
Darrel Kingfield

Darrel Kingfield

Dr. Kingfield serves as a Senior Scientist in the Weather Informatics and Decision Support (WIDS) Division where he is focused on increasing the impact of services for decision makers through the development of new ...

Posted: Oct 28, 2024
Christina Kumler

Christina Kumler

Hello! If you’re looking for someone who loves being outside and whose head is constantly looking into the clouds, then you have found her. I have many hobbies, including photography, triathlon, eating good food, ...

Posted: Oct 28, 2024
Terra Ladwig

Terra Ladwig

Terra is a Research Physical Scientist focused on data assimilation to improve convective allowing weather prediction for high impact weather events.  In particular, she focuses on research and development for cloud and precipitation observations, ...

Posted: Oct 28, 2024
Ruifang Li

Ruifang Li

Ruifang works mainly on data assimilation and in transferring HRRRv4/RAPv5 into FV3. We install capabilities required for DA in FV3 including latent heat forcing, cloud analysis and execute real-time and retrospective DA-cycling runs of ...

Posted: Oct 28, 2024
Sam Liao

Sam Liao

Sung Chu Liao (Sam Liao) is a 3D Visualization and Software Developer with experience in System programming and Game development.  In addition, he had advanced expertise in UX design and 3D modeling. He is ...

Posted: Oct 28, 2024
Tony Liao

Tony Liao

Tony is a senior research associate and also a senior member of IEEE (Institute of Electrical and Electronics Engineers) education society. Tony currently serves as a Project Manager that focuses on international cooperation, mainly ...

Posted: Oct 28, 2024
Liaofan Lin

Liaofan Lin

Liaofan joined NOAA/OAR/Global Systems Laboratory as an affiliate of the Cooperative Institute for Research in the Atmosphere (CIRA) in 2019.  He is a member of the NOAA Rapid Refresh Forecast System (RRFS) implementation and ...

Posted: Oct 28, 2024
Robert Lipschutz

Robert Lipschutz

Bob Lipschutz received his BS (1974) and MS (1980) in Meteorology from Penn State University. He was a Scientific Assistant in the Atmospheric Physics Section at Argonne National Laboratory from 1974 to 1976, working ...

Posted: Oct 28, 2024
Huiying Luo

Huiying Luo

Huiying joins AVID/CIRA and the Data Assimilation Branch.  She is working on RRFS-Smoke data assimilation of aerosol-indicating observations for improved regional smoke and fire weather forecasting. Huiying has a Ph.D. in Environmental Engineering, University ...

Posted: Oct 28, 2024
Matt Mahalik

Matt Mahalik

Matt Mahalik is the lead of GSL’s Program Management Office (PMO), where he leads the organization, coordination, and overall management of GSL’s research portfolio in support of the Office of the Director. His background ...

Posted: Oct 28, 2024
Jennifer Mahoney

Jennifer Mahoney

Jennifer Mahoney is the Director of the NOAA’s Global Research Laboratory (GSL). She leads a staff of nearly 200 meteorologists, software engineers, and support staff dedicated to “making forecasts better.” GSL research provides the ...

Posted: Oct 28, 2024
Kevin Manross

Kevin Manross

Kevin grew up in NW PA where he experienced the 31 May 1985 tornado outbreak that affected eastern Ohio and Western Pennsylvania and that piqued his interest in severe weather. After getting degrees in ...

Posted: Oct 28, 2024
Ian McGinnis

Ian McGinnis

Ian develops software for NOAA’s Science on a Sphere project and for GSL’s verification team. He uses C++, Python, OpenCV, Flask, and other technologies to implement features designed to reduce or eliminate complexity for ...

Posted: Oct 28, 2024
Laura Melling

Laura Melling

Laura is a Scientific Analyst in the Verification and Assessment Branch of the AVID Division as well as the CIRES GSL Lead. She performs assessments of aviation weather forecast products for the Federal Aviation ...

Posted: Oct 28, 2024
William Moninger

William Moninger

Bill is a semi-retired physicist who works on evaluating the skill of weather prediction models. He is also an expert in automated weather observations by commercial aircraft. Prior to that, during his 47-year career ...

Posted: Oct 28, 2024
Shawn Murdzek

Shawn Murdzek

Shawn is a research scientist with the Cooperative Institute for Research in Environmental Sciences (CIRES) whose main focus is studying the impact of assimilating observations from Uncrewed Aircraft Systems (commonly referred to as drones) ...

Posted: Oct 28, 2024
Scott Nahman

Scott Nahman

Scott graduated from the University of Colorado Naval ROTC program and served aboard the USS Germantown as the Electronics Material Officer and Electronic Warfare Officer. He began his NOAA career as a contractor working ...

Posted: Oct 28, 2024
Daniel Nietfeld

Daniel Nietfeld

Daniel is the Chief of the Weather Informatics and Decision Support (WIDS) Division at GSL. His background is rooted in integrating science (physical science and social science) into operational meteorology. Prior to coming to ...

Posted: Oct 28, 2024