An official website of the United States government. Here's how you know.

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

Staff Profiles

Ravan Ahmadov

Ravan Ahmadov

My research has been focused on the simulation of air pollution from various natural and anthropogenic sources. Currently, I am working on improving fire weather and atmospheric composition prediction capabilities in atmospheric models and ...

Posted: Jul 21, 2025
Curtis Alexander

Curtis Alexander

Curtis Alexander (NOAA/OAR/GSL) received his undergraduate and graduate degrees from The Pennsylvania State University (1999) and the University of Oklahoma (2002, 2010) respectively. His graduate work focused on studying severe convective storms, including tornadoes, ...

Posted: Jul 21, 2025
Randy Barnett

Randy Barnett

Education B.S. Computer Information Systems – Regis University (1994) M.S. Computer Information Systems – Regis University (2000) Experience IT Operations Manager at NOAA Global Systems – 2011-Present IT Manager at USDA – 2003-2011

Posted: Jul 21, 2025
Stan Benjamin

Stan Benjamin

Stan is a partially retired senior scientist for CIRES at the NOAA Global Systems Lab. Stan grew up in the DC area but also lived in Canada for 2 years during elementary school and ...

Posted: Oct 28, 2024
Ligia Bernardet

Ligia Bernardet

My work straddles the interface between research and operations in numerical weather prediction. As the Chief of the GSL Earth Prediction Advancement Division, I contribute to planning and supporting the execution of model development ...

Posted: Jul 21, 2025
Sudheer Bhimireddy

Sudheer Bhimireddy

Sudheer Bhimireddy joined GSL as a Research Scientist with the CIRES at CU Boulder in the Fall of 2023. Prior to joining GSL, Sudheer worked as a Postdoctoral researcher with the Climate and Atmospheric ...

Posted: Jul 21, 2025
Lindsay Blank

Lindsay Blank

Lindsay earned her M.S. in Atmospheric Science from North Carolina State University in 2017. That year, she moved to Boulder to begin her professional career at the National Center for Atmospheric Research. In 2021, ...

Posted: Jul 21, 2025
Rainer Bleck

Rainer Bleck

After writing a (borderline mediocre) Ph.D. thesis on the use of isentropic trajectories to diagnose vertical motion in the extratropical atmosphere, Rainer’s career started off on a high note when he used knowledge of ...

Posted: Jul 21, 2025
Jeffrey Duda

Jeffrey Duda

I grew up in Iowa and developed a penchant for weather at a young age watching severe weather roll through during the spring and summer (TWC was one of my most-watched channels as a ...

Posted: Jul 21, 2025
Jason English

Jason English

I started working in GSL in 2015, where I conducted Observing System Simulation Experiments (OSSEs) to evaluate the impacts of targeted dropsondes on winter storm forecasts. Since joining the AVID group in 2017, I ...

Posted: Jul 21, 2025
Keenan Eure

Keenan Eure

Keenan is a research scientist in the Assimilation, Verification, and Innovation Division of Global Systems Laboratory (GSL) through the Cooperative Institute for Research in the Atmosphere (CIRA). His primary area of work is assimilating ...

Posted: Jul 21, 2025
Clark Evans

Clark Evans

Clark Evans is a Research Physical Scientist and Model Physics Branch Chief in the Earth Prediction Advancement Division of the Global Systems Laboratory. He joined GSL in 2024 after thirteen years at the University ...

Posted: Jul 21, 2025
Ken Fenton

Ken Fenton

Ken Fenton is a Physical Scientist at NOAA’s Global Systems Laboratory (GSL) and is the Deputy Chief for the Weather Informatics and Decision Support Division, which evaluates aviation weather forecast products for the Federal ...

Posted: Jul 21, 2025
Jenny Fox

Jenny Fox

I am from Boulder, CO and am living in the same house that I grew up in.  I have always loved to travel, and after working as IT support at the Aeronomy Laboratory (the ...

Posted: Jul 21, 2025
Guoqing Ge

Guoqing Ge

Guoqing’s work focuses on developing and testing modifications in data assimilation for numerical models. He maintained the community version and provided community support for the NOAA GSI/EnKF data assimilation systems from 2017 to 2021 ...

Posted: Jul 21, 2025
Ben Green

Ben Green

Born and raised in Silver Spring, Maryland, I became interested in meteorology at a very young age. I pursued this interest after high school, obtaining three degrees (B.S., M.S., Ph.D.) at Penn State University. ...

Posted: Jul 21, 2025
Mackenzie Grimes

Mackenzie Grimes

Mackenzie is a Software Engineer working within the Weather Informatics and Decision Support (WIDS) division to build impact-based decision support tools for National Weather Service (NWS) forecasters. He previously held a variety of roles ...

Posted: Jul 21, 2025
Shilpi Gupta

Shilpi Gupta

Software Engineer for NOAA Science On a Sphere Education M.S. Computer Science, University of Kentucky, 2006 B.S. Computer Science, University of Kentucky, 2003 B.S. Art Studio, University of Kentucky, 2003 Minor French Language, University of ...

Posted: Jul 21, 2025
Jeff Hamilton

Jeff Hamilton

Jeff developed a love for meteorology at an early age and was fortunate enough to live in different areas of the country with extreme weather growing up. Settling in Colorado just before high school, ...

Posted: Jul 21, 2025
Nathan Hardin

Nathan Hardin

Nate is the Chief of the Weather Information Systems Evolution (WISE) Branch, within the Weather Informatics and Decision Support (WIDS) Division at GSL. His expertise and background involves working with the  National Weather Service ...

Posted: Jul 21, 2025
Stephanie Hoekstra

Stephanie Hoekstra

Bio Stephanie Hoekstra Stephanie Hoekstra is a Wildfire Social Scientist in the Social and Behavioral Sciences (SBS) Branch within the Global Systems Laboratory’s Weather Informatics and Decision Support (WIDS) Division. Prior to GSL, Stephanie worked ...

Posted: Jul 21, 2025
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: Jul 21, 2025
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: Jul 21, 2025
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: Jul 21, 2025