Meet the NASA & NASA Acres Team

The following NASA and NASA Acres leaders, scientists, and program staff are participating in the Space for Agriculture Tour.

Dr. Karen M. St. Germain

Earth Science Division Director, NASA Headquarters

Dr. St. Germain is the Division Director of the Earth Science Division, in the Science Mission Directorate at the National Aeronautics and Space Administration (NASA) Headquarters. She provides executive leadership, strategic direction, and overall management for the entire agency's Earth Science portfolio, from technology development, applied science, and research, to mission implementation and operation.

Prior to coming to NASA, Dr. St. Germain was the Deputy Assistant Administrator, Systems (DAAS), for NOAA's Satellite and Information Service, where she guided the development and deployment of NOAA's major satellite programs. She previously served as Director of NOAA's Office of Systems Architecture and Advanced Planning, and from 2011 to 2016 served in the Office of the Under Secretary of Defense for Acquisition, Technology and Logistics, where she led the DoD 2014 Strategic Portfolio Review for Space.

Dr. St. Germain has a research background at the University of Massachusetts, the University of Nebraska, and the Naval Research Laboratory, including fieldwork aboard Arctic and Antarctic icebreakers, flights through hurricanes on NOAA's P-3 aircraft, and glacial research on the Greenland ice sheet. She holds a B.S. in electrical engineering from Union College and a Ph.D. in Electrical Engineering from the University of Massachusetts, and is a Distinguished Graduate of the National War College.

Ashutosh Limaye, PhD

Chief Scientist, SERVIR Program, NASA Marshall Space Flight Center; Incoming Program Manager for Agriculture, Earth Action, NASA Earth Science Division

Dr. Limaye serves as the Chief Scientist for the SERVIR program at NASA's Marshall Space Flight Center, a collaborative initiative between NASA and USAID that empowers developing nations in Asia, Africa, and Latin America by using satellite data to address environmental challenges.

As SERVIR Chief Scientist, Dr. Limaye leads the Applied Sciences Team, focused on ensuring the program's research and applications directly meet the needs of the regions it serves, translating Earth observation data into practical solutions such as improved weather forecasting for farmers and enhanced flood prediction.

His research interests include hydrologic modeling, mathematical optimization, and agricultural yield estimation under changing agricultural and climatic conditions.

Alyssa K. Whitcraft, PhD

Founding Executive Director, NASA Acres; Research Professor, University of Maryland

alyssakw@umd.edu

Alyssa is a Research Professor in the Department of Geographical Sciences at the University of Maryland, College Park, and the founding Executive Director of NASA Acres, NASA's agriculture consortium focused on strengthening U.S. agriculture. Her passion for agriculture and vision for NASA Acres as a program that centers agricultural producers grew out of her experience as a winery kid in California.

Prior to NASA Acres, she founded and continues to direct the Harvest Sustainable and Regenerative Agriculture Initiative, a consortium of scientists and innovators building a globally consistent understanding of sustainable and regenerative agriculture practices. She was also co-founding Deputy Director of NASA Harvest (2017–2023), has served as Programme Scientist for the G20's GEOGLAM initiative, and has led agriculture efforts for the Committee on Earth Observation Satellites for over a decade.

Mike Humber, PhD

Deputy Director, NASA Acres; Associate Research Professor, University of Maryland

Michael Humber is an Associate Research Professor in the Department of Geographical Sciences at the University of Maryland, with a background in remote sensing, spatial statistics, and geographic data management. He serves as Deputy Director for NASA Acres, Data Lead for NASA Harvest, Lead Scientist for the Climate-Smart Agriculture component of the UMD Climate Resilience Network, and a member of the UMD-NASA Fire Science Team.

His work focuses on developing and distributing satellite-based data products that improve data quality and availability for agricultural decision-makers and farmers, while building inclusive frameworks that involve local stakeholders in the research design process. He leads a team building web and mobile applications and cloud-native data pipelines that support humanitarian, research, and operational partners in the U.S. and abroad.

Kaiyu Guan, PhD

Chief Scientist, NASA Acres; Levenick Endowed Professor, University of Illinois Urbana-Champaign

Kaiyu Guan is the Levenick Endowed Professor in agroecosystem sensing and modeling at the University of Illinois Urbana-Champaign, Founding Director of the Agroecosystem Sustainability Center (ASC), and Chief Scientist of the NASA Acres Consortium. His research group uses advanced process models, satellite sensing technology, fieldwork, and artificial intelligence to understand how climate and human practices affect crop productivity, water resources, and environmental sustainability.

His team applies this work to large-scale crop monitoring and forecasting, quantification of greenhouse gas emissions, agricultural policy design, and water management and sustainability, both across the U.S. and worldwide.

Emily Sylak-Glassman, PhD

Deputy Associate Director for Earth Action, NASA Earth Science Division

Dr. Sylak-Glassman is the Deputy Associate Director for Earth Action in NASA's Earth Science Division at Headquarters in Washington, D.C., where she manages a broad portfolio of efforts that develop practical and innovative applications from data collected by NASA's satellite missions.

Previously, she was a senior policy analyst at NASA's Office of Technology, Policy, and Strategy, and before joining NASA, she worked at the Science and Technology Policy Institute, a federally funded research and development center, supporting the White House Office of Science and Technology Policy and executive branch agencies.

Dr. Sylak-Glassman earned a Ph.D. in chemistry from the University of California, Berkeley, and B.S. degrees in chemistry and biological chemistry from the University of Chicago.

Natacha Kalecinski, PhD

Assistant Research Professor, University of Maryland

Natacha Kalecinski earned her Ph.D. in atmospheric science at the Ecole Polytechnique in Paris in 2015. She is now a postdoctoral associate in the University of Maryland Department of Geographical Sciences, where her research has focused since 2019 on yield variability assessment to improve crop yield forecasting models, and since 2021 on leading operational yield forecasting development for multiple countries in support of NASA projects.

As part of the NASA Harvest team, her research on the impact of the war in Ukraine on crop production has been featured by Bloomberg and NASA's Earth Observatory.

Cordelia Hiers Brady

NASA Earth Action Agriculture Program Coordinator

cordelia.hiersbrady@nasa.gov

As the Agriculture Program Coordinator at NASA, Cordelia supports Earth Action's Agriculture Program in managing and developing innovative and sustainable projects that address food and agriculture challenges. She has a decade of experience working with funders, researchers, and farmers through public-private partnerships to advance scientific knowledge and improve agricultural practices.

She leverages her communication, project leadership, and relationship-building skills to generate engaging content, build unique partnerships, and oversee daily management of the agriculture team's programs and events. Cordelia holds a master's degree in agricultural business and economics from Murray State University, and is passionate about connecting the agriculture community with the latest technologies and data from NASA and other sources.

Christopher Thorne

Earth Science Division, Science Mission Directorate — NASA Communication Services Contract, NASA Headquarters

With 35 years of experience in media, policy, and strategic communications, Chris Thorne supports outreach and message development for NASA's Earth Science Division as an independent sub-contractor.

Thorne began his career in journalism at local newspapers in New York's Hudson Valley before joining the Associated Press, where as an AP correspondent he covered agriculture around the country and in Washington, D.C. He went on to serve as chief of public affairs and communications for U.S. Senator Kent Conrad of North Dakota, covering issues from the Farm Bill to taxes, health care, and defense.

Thorne later led public affairs for Growth Energy, an ethanol advocacy organization, and then ran communications and public affairs for the Beer Institute. He launched Independent Public Affairs, LLC in 2018, with clients including NASA, NOAA, the Centers for Disease Control, and the Special Olympics.

Thorne is a graduate of Pace University's College of White Plains with a B.A. in Journalism. A native of Philadelphia, he now lives in Silver Spring, Maryland, with his family.

Forrest S. Melton

Senior Research Scientist, NASA Ames Research Center, Atmospheric Sciences Branch

Forrest Melton is a Senior Research Scientist with the Earth Sciences Division at NASA Ames Research Center, where he currently serves as Associate Program Manager for Water Resources and Agriculture with the NASA Applied Sciences Program and as NASA Project Scientist for OpenET.

Since 2003, he has worked at NASA Ames on the development of modeling and satellite-driven decision support frameworks including OpenET, the Satellite Irrigation Management Support (SIMS) system, the NASA Earth Exchange (NEX), and the Terrestrial Observation and Prediction System (TOPS). His research focuses on applications of satellite data to improve management of natural resources, evapotranspiration and agricultural water requirements, and ecosystem and carbon cycle modeling.

Forrest holds B.S. and M.S. degrees in Earth Systems Science from Stanford University and has authored over fifty papers and book chapters on applications of remote sensing. In 2022, he was awarded the NASA Exceptional Public Service Medal for his efforts to advance the use of remotely sensed evapotranspiration data in water resources management.

Allison Bredder

Strategic Engagement Officer, NASA Acres

As Strategic Engagement Officer at NASA Acres, Allison helps build connections between Earth observation science and the agriculture community to co-create tools that use satellite data to support everyday decisions on the farm and strengthen resilience to climate challenges.

She is also a Postdoctoral Associate in the Department of Geographical Sciences at the University of Maryland, where her research focuses on understanding the health impacts of wildfire smoke using remote sensing, machine learning, and epidemiological methods. Her broader expertise spans optical remote sensing, data visualization, and science communication, and she has contributed to projects funded by NOAA, NASA, and ARLIS.

Jacob Orser

Program Support Specialist, NASA Acres

Jacob Orser is a Program Support Specialist at NASA Acres, a consortium focused on U.S. domestic agriculture. He studied geography and economics at Macalester College, with an emphasis on food, agriculture, and society, and his work includes analysis of remote sensing to quantify crop quality and estimations of supply elasticities and farmers' indifference curves.

Jacob is driven by a passion for knowledge transfer and education, and is committed to connecting with experts across the agricultural sector to promote the secure transfer of data. His work at NASA Acres focuses on bridging the gap between cutting-edge research and practical applications, ultimately benefiting farmers, researchers, and policymakers.

Gage Taylor

Science Writer, KBR, Inc. / NASA Earth Science Technology Office (ESTO)

Gage Taylor is a contractor with NASA's Earth Science Technology Office (ESTO), which develops novel technologies for Earth observation, including new tools for measuring soil moisture, observing surface temperature, and forecasting crop yield. Gage is excited to learn more about how NASA can work with farmers to field these tools for agriculture. He grew up on a small farm in East Tennessee.

Ignacio Ciampitti, PhD

Professor of Agronomy, Purdue University; Co-Director, Institute for Digital and Advanced Agricultural Systems (IDAAS) — Oklahoma portion of the tour only

Ignacio Ciampitti is a quantitative agronomist focused on the integration of digital agriculture in complex farming systems. He has joined Purdue University as co-director of the Institute for Digital and Advanced Agricultural Systems (IDAAS) and a full professor in the agronomy department, after previously serving as one of the founding directors of the Institute for Digital Agriculture and Advanced Analytics at Kansas State University.

Ciampitti holds a bachelor's and master's degree from the University of Buenos Aires and a Ph.D. in agronomy from Purdue. His research explores the integration of crop eco-physiology and plant nutrition with data science, remote sensing, and crop modeling tools, and he has trained many graduate students, research scholars, and postdoctoral researchers over his career.

Alex Ruane, PhD

Co-Director, NASA GISS Climate Impacts Group; Columbia University; AgMIP Science Coordinator

Dr. Alex Ruane is a Research Physical Scientist at the NASA Goddard Institute for Space Studies and an adjunct Associate Research Scientist at the Columbia University Center for Climate Systems Research in New York City.

Alex serves as Research Coordinator and Climate Team Leader for the Agricultural Model Intercomparison and Improvement Project (AgMIP), an international, transdisciplinary project connecting climate science, crop modeling, and economic modeling to assess the global impacts of climate change on agriculture and food security.

His research uses climate and impacts assessment models to examine the influence of climate variability and change on agriculture, water resources, and other sectors, leading to the development of adaptation strategies and decision support tools for stakeholders and policymakers. Alex received a B.S. in atmospheric science from Cornell University and completed his doctoral work at the Scripps Institution of Oceanography.