Dozens of DENIN collaborators recently attended the 2025 American Geophysical Union’s conference, held from December 15-19 in New Orleans, Louisiana. AGU gathers over 25,000 attendees from more than a hundred countries to foster visibility and coordination around research in the earth and space sciences.
Below is a list of DENIN staff, affiliates, and affiliate-advised students who presented research at the conference, expanding the reach of UD’s environmental projects:
Coastal Critical Zone Network
- Cindy Chen, “Controlling Drivers of Wave-Driven Ripple on Interfacial Fluid and Solute Exchange in Coastal Hyporheic Zone” (Talk)
- Cindy Chen, “Influence of Microtopography and Soil Heterogeneity on Salinization in Changing Coastal Environments” (Talk)
- Sam Clem & Matthew Henderson, “Communicating Climate with Communities: Evolving Communication Strategies in Times of Political and Environmental Change” (Poster)
- Marisa Field, College of Coastal Georgia, “Empowering Undergraduate Research Through LoRaWAN-Enabled Sensor Networks: A Coastal Salt Marsh Case Study from the FS3 Critical Zone Summer Program” (Poster)
- Tahmidur Rahman Junayed, “Salinity Dominates Moisture Content in Soil Water Potential at Marsh-Forest Boundaries” (Poster)
- Matt Kirwan, Virginia Institute of Marine Science, “Sea-level Driven Land Conversion Amplified by Coastal Agriculture” (Talk)
- Abigail McGraw, “Hydrogeologic Controls on the Position of the Marsh-Forest Boundary in the Mid-Atlantic” (Poster)
- Holly Michael, “The hidden role of groundwater in the functioning and migration of saltmarshes” (Poster)
- Robyn O’Halloran, “Disrupted Pathways: Stemflow Loss and Groundwater Biogeochemistry in Ghost Forests” (Talk)
- Donald Pesonen, Rutgers, “Geophysical Monitoring of Oak and Pine Trees Under Varying Mortality in a Marsh-Forest Upland Transect” (Poster)
- Danielle Pratt, “Untangling Dynamic Drivers of Salt Migration” (Poster)
- Matt Sirianni, East Carolina University, “You Can Lead a Horse to Water, but it Might be Salty: Monitoring Water Use by Feral Horses in a Changing Coastal Environment” (Poster)
- Chris Terra, Rutgers “EConflux: A Python Library for informing geophysical surveys using complementary electrical methods” (Poster)
- Chris Terra, Rutgers, “Does Soil Heterogeneity Promote Seasonal Changes in Salinity along Forested and Agricultural Marsh-to-Upland Transects?” (Talk)
- Claudia Zoccarato, “The Biophysical Foundation of Tidal Marshes: A focus on Soil-Root Interactions” (Talk)

Claudia Zoccarato presents her talk, “The Biophysical Foundation of Tidal Marshes: A focus on Soil-Root Interactions”

Abigail McGraw and her poster “Hydrogeologic Controls on the Position of the Marsh-Forest Boundary in the Mid-Atlantic”
Department of Civil, Construction and Environmental Engineering
- Austin K Farnum, “Representing Fast (Surface) and Slow (Subsurface) Threats to Below-Ground Water Infrastructure in Integrated Urban Coastal Hydrologic Modeling” (Poster)
- Paul Imhoff, “Digital Twins to Understand Methane Emissions From Landfills” (Poster)
- Tawsif Sultan Raaz, “Assessing Methane Oxidation and Significance of Aerobic Waste Degradation across Different Landfill Covers with Eddy Covariance Data” (Poster)

Paul Imhoff with his poster “Digital Twins to Understand Methane Emissions From Landfills”
Department of Earth Sciences
- Ophelia Christoph, “Digging Deep into Subsurface Complexity: Integrating 2.5D Seismic Interpretation with Geospatial and Geotechnical Modeling on the Mid-Atlantic Shelf” (Poster)
- Catherine Hughes, “Substrate Distribution and Channel Morphology in the Delaware River Before and After USACE Main Channel Deepening Efforts (2013–2020)” (Poster)
- Romana Ibrahim, “Designing a Saltwater Intrusion Monitoring Network in Coastal Delaware: Identifying Vulnerable Areas and Addressing Critical Monitoring Gaps”
- Jim Pizzuto, “Nested, Spatially Distributed Annual River Channel Sediment Budgets Pinpoint Sediment Sources and Identify Downstream Sediment Transport Pathways” (Poster)
- Michael Powers, “Rock Glacier Motion and Subsurface Ice Structure in the Dry Andes of San Juan Province, Argentina” (Talk)
Department of Geography and Spatial Sciences
- Saleem Ali, “Developing Geoscience-based targets for Critical Minerals Policies” (Poster)
- Aarti Arora, “Rural labor out-migration’s impact on agriculture and the environment in the Global South” (Talk)
- Kyle Davis, “Assessing transitions between smallholder and commercial agriculture in Nigeria through automated field boundary segmentation” (Poster)
- Bhoktear Khan, “Assessing Economic Water Scarcity and Sustainable Irrigation Potential in Nigeria” (Talk)
- Delphis Levia, “Welding bark ecology and stemflow hydrodynamics for smarter, bark-contemplative green infrastructure” (Poster)
- Amaja Mack, “Linkages Between Climate Extremes, Cropland Expansion, and Deforestation in Sub-Saharan Africa” (Poster)
- Afia Sarwar, “The Role of Climate in Shaping US Cropland Shifting and Crop Switching” (Poster)
- John Uponi, “Overlooked potential for Energy Transition Mineral resources and research in Above-Ground Sources” (Talk)
- John Uponi, “The Role of Resilient Crops in Influencing Climate-Driven Deforestation in Nigeria” (Poster)
School of Marine Science and Policy
- Julia Greco, “Sand in Motion: Mapping Morphology and Beach Nourishment Response of Northern Assateague Island” (Poster)
- Grant Otto, “Mind the Gap: Innovative Mapping Techniques for the Ultra-Shallow Coastal Zone” (Poster)
- Sunita Shah Walter, “Direct observations a seafloor volcanic eruption starting 29th April 2025 on the East Pacific Rise at 9°50’N” (Poster)

Julia Greco and her poster “Sand in Motion: Mapping Morphology and Beach Nourishment Response of Northern Assateague Island”
Department of Plant and Soil Sciences
- Alex Huddell, “Do cover crops mitigate N2O and N2 losses? Exploring management and climatic drivers of N2O and N2 losses in temperate maize-soybean rotation” (Poster)
- Van Huong Le, “Long-term Ecological Studies Must Continue: Insights from a Dryland Transition Zone” (Talk)
- Matthew Sena, “Influence of Redox Conditions on Elemental Concentrations in Riparian Sediment and Groundwater” (Poster)
Water Science & Policy Program
- Bisesh Joshi, “Modeling Nitrogen Transformation Pathways and Their Hydro-biogeochemical Drivers in Reducing Riparian Zone Using PFLOTRAN” (Poster)
- Alexis Yaculak, “Microbial Community Composition of Ancient Hydric Soils and its Recovery in Contemporary Floodplain Restorations” (Poster)
- Rachel Zobel, “Hydrologic Modeling Meets Community Voices: Advancing GSI in Northeast Wilmington” (Poster)
Affiliates Outside UD
- Rodrigo Vargas, “Spatial Representativeness of MexFlux as a regional FLUXNET network” (Poster)
