2025 AGU

The American Geophysical Union's Annual Fall Meeting in 2025 is in Washington, D.C., on December 14-19. Find us Monday-Thursday in the Exhibit Hall at booth 544. Toolik management will also be presenting:

Tuesday

Thursday

Friday

Find other Toolik research and community members at AGU

The following presentations either feature data from the Toolik region or are from Toolik community members and Tundra Awardees. 

* indicates first author is a Tundra Awardee

** indicates a Toolik-sponsored presentation

 

ID Title First author Presentation Type Time Location
 B11G Characterizing transport mechanisms and pathways of organic carbon export from thawing permafrost hillslopes Aaron Mohammed Poster 08:30 - 12:00 Hall EFG
B11E-07 The Reorganization of Arctic Ecosystems After Fire and Nutrient Addition: Are Regime Shifts Caused by Decreased Ecosystem Resistance and Increased Community Openness?  Adrian Rocha Oral 09:35 - 09:45 261-262
B11E-08 Beaver Occupancy Dynamics and Predicted Range Expansion in Arctic Alaska  Thomas Glass Oral 09:45 - 09:55  261-262
B12E-01 Significant soil warming across Alaska over the last 25 years  Erin Oliver Oral 10:35 - 10:45 261-262
 C12A-01 What’s Next For Snow: Insights from the NASA Terrestrial Hydrology Program Community Snow Meeting Kate Hale  Oral 10:35 - 10:40  208-209
 C12A-05 Our Dependence upon Environmental Monitoring   Larry Hinzman Oral 10:55 - 11:00 208-209
B12E-04 Monitoring Shoulder Season Freeze/Thaw Dynamics across Arctic Tundra Landscape Using a Decade of L- and P-Band PolSAR Imagery Kazem Bakian Dogaheh Oral 11:05 - 11:15 261-262
B12A-04 From Perimeters to Probabilities: Advancing Wildfire Spread Forecasting in Alaska with FiRE‑HNL Jordan Carabello-Vega Oral 11:08 - 11:20 265-266
H12E-06 Deep Learning Advances Arctic River Water Temperature Predictions Shuyu Chang Oral 11:30 - 11:40 225-227
B12E-08 Measurements, Models, and More: Cross-Disciplinary Science to Understand and Predict Rapidly Changing Processes at the Top of the World Colleen Iversen Oral 11:45 - 11:55 261-262
GC13C-05 Contemporary Arctic-boreal Zone Carbon Dioxide and Methane Flux Budgets and their Radiative Impact Bethany Sutherland Oral 15:05 - 15:15 207
ED13A-10 * Periglacial Climate Summer School: Developing a Collaborative Student Research Experience Austin Routt Oral 15:36 - 15:45 346-347
SA14A-04 F-region Neutral Wind Response to Multiscale Geomagnetic Forcing During the March 27th, 2014 Substorm Event Yue Deng Oral 16:51 - 17:03 283-285
B13F Primary Production from Wet Sedge-Dominated Arctic Soils Increases Under One Week of Elevated CO₂ Exposure Without Stimulation of CH₄ Emissions Danielle Sirivat Poster 14:15 - 17:45 Hall EFG
B13F Cross-scale controls of Arctic phenology: Vegetation and local topography shape climate responses and long-term trends Xiaoran Zhu Poster 14:15 - 17:45 Hall EFG
B13F Carbon Storage Capacity and Turnover in Cottongrass Tussocks in the Arctic Hailey Dysert Poster 14:15 - 17:45 Hall EFG
B13F Thriving in the Shadows: Expansion of Rubus chamaemorus (Cloudberry) in the Arctic Tundra Paulo Olivas Poster 14:15 - 17:45 Hall EFG
B13F The Nuance of Nitrogen: Form-Specific Controls on Plant Community, Canopy Roughness, and Photosynthesis in Moist Acidic Tundra Amelia Harris Poster 14:15 - 17:45 Hall EFG
B13F Direct and Indirect Effects of Winter Snow Depth on Carbon Emissions in Autumn at Moist Acidic Tundra in Arctic Alaska Kyoko Okano Poster 14:15 - 17:45 Hall EFG
B13F Climate drivers of greenness and productivity over 17 years in three types of Arctic tundra Duncan Menge Poster 14:15 - 17:45 Hall EFG
B13F ABCFlux v2: A New Synthesis of Monthly Carbon Dioxide and Methane Fluxes from Arctic-Boreal Terrestrial and Freshwater Ecosystems Isabel Wargowsky Poster 14:15 - 17:45 Hall EFG
B13F Plant-Microbe-Mineral Interactions Reveal Key Temporal Dynamics Regarding Carbon Cycling and Permafrost Priming Sean Schaefer Poster 14:15 - 17:45 Hall EFG
B13F The Alaska Soil Data Bank Project: A Statewide Harmonized Dataset Enabling High-Resolution Predictions of Soil Properties for Arctic-Boreal Ecosystem Research Nic Jelinski Poster 14:15 - 17:45 Hall EFG
B13F Mapping Post-Fire Polygonal Ice Wedge Degradation in Arctic Tundra Using High Resolution Satellite Imagery and Computer Learning Rachel Badzioch Poster 14:15 - 17:45 Hall EFG
NG13A Automatic Identification of Auroral Beads and Omega Bands in THEMIS All-Sky Images Jeremiah Johnson Poster 14:15 - 17:45 Hall EFG

 

ID Title First Author Type Time Location
C21F Spatial and Temporal Changes to Aufeis Distribution in Northern Alaska Julian Dann Poster 08:30 - 12:00 Hall EFG
C21B A decade of change in the composition of dissolved organic carbon in an arctic lake is linked to permafrost thaw Rose Cory Oral 08:30 - 08:40 210
B21F-01 A Look into 35 Years of Alaskan Tundra In-situ Soil Organic Carbon: A Synthesis Perspective Sophia Henze Oral 08:35 - 08:45 261-262
B21F-03 Operational near real-time fluxes of CO2 and CH4 across the Arctic-Boreal region Grant Falvo Oral 08:55 - 09:05 261-262
C21B-04 Tracing Seasonal Ground Thaw with Stream Chemistry in Arctic Permafrost Catchments Amelia Grose Oral 09:00 - 09:10 210
B21F-04 Near Real-Time Measurements Reveal Record Carbon Dioxide and Methane Emissions and Release of Old Carbon From Tundra and Boreal Ecosystems in the Permafrost Region Ted Schuur Oral 09:05 - 09:15 261-262
B21F-05 Constraining Seasonal Dynamics of Carbon Fluxes in Arctic-Boreal North America Using Atmospheric CO2 Observations Jiaming Wen Oral 09:15 - 09:25 261-262
B22H-01 Plant biomass and woody dominance increased with climate warming across the Arctic tundra biome Kathleen Orndahl Oral 10:35 - 10:45 261-262
B22H-02 Limited gain in Arctic–boreal photosynthesis from warming indicated by multi-scale observational constraints Wu Sun Oral 10:45 - 10:55 261-262
B22H-03 ** 18 Years of Abiotic and Biotic Phenological Change in the Arctic Amanda Young Oral 10:55 - 11:05 261-262
B22H-05 Monitoring Arctic Ecosystem Change: Lessons Learned from the 2017–2024 ABoVE Airborne Campaigns Charles Miller Oral 11:15 - 11:25 261-262
EP23A-02 Modeled Subsidence of Permafrost Terrain 2025-2050; North-Central Alaska Jaako Putkonen Oral 14:26 - 14:36 255-257
EP23A-03 Identifying Drivers of Variable Ice-Wedge Permafrost Thaw in Arctic Alaska Katherine Braun Oral 14:37 - 14:47 255-257
EP23A-08 Shifting baseflow trends across permafrost regions of the pan-Arctic Sarah Evans Oral 15:32 - 15:42 255-257
C23B * Quantifying the relative roles of snowmelt and summer rainfall runoff in Arctic fluvial sediment and carbon export Marisa Repasch Poster 14:15 - 17:45 Hall EFG
C23B * Weakness in the Arctic Permafrost Mineral Weathering Feedback
 Preston Kemeny Poster 14:15 - 17:45 Hall EFG

 

ID Title First author Type Time Location
SA31C Investigation of Meso-Scale Thermospheric Neutral Winds using Multi-Instruments in Alaska Myeong Joon Kim Poster 08:30 - 12:00 Hall EFG
SA31E Effects of Geometric Error of Optical Inversions on Driving the GEMINI Model Cameron Westerlund Poster 08:30 - 12:00 Hall EFG
C31B-08 InSAR Analysis of Climate-Driven Ground Deformation in Northern Alaska’s Continuous Permafrost Zone Mohammed Khosravi  Oral 09:40 - 09:50

210
C32B-03 Resolving Circumarctic Zero-Curtain Phenomena with AI-Integrated Earth Observations Bradley Gay Oral 10:50 - 11:00 210
C32B-05 The Effects of Weather Variability on Supra-Permafrost Thermal Hydrology Neelarun Murkherjee Oral 11:10 - 11:20 210
SA34B-07 Exploring the auroral E-region with rockets, tomography, radars, imagery, and modelling: a GNEISS, GEMINI, and Swarm-over-Poker study of auroral current closure Kristina Lynch Oral 17:25 - 17:35 283-285
C33F Modeling Permafrost Thaw and Land Surface Change in Arctic Alaska Dmitry Nicolsky Poster 14:15 - 17:45 Hall EFG
C33F Hydrologic Observations Across the Hillslope-to-River Corridor of an Arctic Tundra Watershed Devon Hill Poster 14:15 - 17:45 Hall EFG
C33F Mapping of localized long-term active layer thickness change, North Slope of Alaska Vasily Tolmanov Poster 14:15 - 17:45 Hall EFG
C33F A Data-Driven Framework for Active Layer Thickness Prediction across Circum-Arctic Permafrost Regions Using Geospatial Machine Learning Andrew Wilcox Poster 14:15 - 17:45 Hall EFG
C33F Constraining the cryo-hydrological processes driving acid and metal mobilization from thawing permafrost in northern Alaska Rebecca Rowe Poster 14:15 - 17:45 Hall EFG

 

ID Title First author Type Time Location
B41L * Characterization of microbial community composition across arctic polygonal tundra ecosystems Morgan Brown Poster 08:30 - 12:00 Hall EFG
EP41E Soil organic carbon evolution across thermo-erosional gullies on the North Slope of Alaska, USA Clara Wilson Poster 08:30 - 12:00 Hall EFG
H41P Winter Limnology – Contribution of Heat Flux and Double Diffusion to Circulation under the Ice Sally MacIntyre Poster 08:30 - 12:00 Hall EFG
H41C-08 The role of seasonality and discharge on spatial patterns and representative scales of stream chemistry across three arctic mesoscale catchments Arsh Grewal

Oral

 09:42 - 09:52 228-230
U42A-01 ** Research stations as active players in fostering safe and supportive field research: lessons from Alaska’s Toolik Field Station Haley Dunleavy Oral 10:32 - 10:42 E-2
B42C-06 Wildfire Impacts on Long-Term Soil Carbon Storage Across Boreal and Arctic Ecosystems Xanthe Walker Oral 11:25 - 11:35 265-266
B43E-01 * Assessing the impact of extreme weather events on carbon fluxes in Arctic and Boreal ecosystems Claire Bachand Oral 14:15 - 14:25 267-268
TH45C ** Toolik Field Station at 50 Years and Beyond: Reflecting on the Past and Shaping the Future of Arctic Science Support Toolik Management Team Town Hall 18:00 - 19:00 261-262
B43K Modeling the Post-fire Recovery Dynamics of the Anaktuvuk River Fire With DVM-DOS-TEM Hannah Mevenkamp Poster 14:15 - 17:45 Hall EFG
B43M Thaw is Change, and Change Is inevitable: Understanding Bacterial Community Changes Following Permafrost Thaw Mark McDonald Poster 14:15 - 17:45 Hall EFG
C43C Arctic Active Layer Freeze-Thaw Deformation Inferred from Co-located InSAR and GPS Observations Alexandre Lasalarie Poster 14:15 - 17:45 Hall EFG
C43D Arctic Tundra Vegetation Change and the Feedbacks on Snow Cover and Permafrost Extent Shannon Dillard Poster 14:15 - 17:45 Hall EFG
ID Title First author Type Time Location
B51M Effects of environmental changes on Alaskan soil methane and carbon dioxide fluxes and related soil biogeochemistry: two case studies in boreal forest with permafrost thaw and Arctic tundra with different hydrological regimes Jinhyun Kim Poster 08:30 - 12:00 Hall EFG
B51M Comparison of Carbon Dioxide and Methane Fluxes Across Diverse Permafrost Ecosystems Danielle Trangmore Poster 08:30 - 12:00 Hall EFG
B51M ** An Increase in the Active Layer Soil Carbon Pool is Fueling Long Term Carbon Losses from Three Tundra Ecosystems at Imnavait Creek in Northern Alaska Syndonia Bret-Harte Poster 08:30 - 12:00 Hall EFG
B51M Indication of ongoing tundra ecosystem change with sustained loss of carbon from the Imnavait Watershed in northern Alaska Eugénie Euskirchen Poster 08:30 - 12:00 Hall EFG
B51M After the Thaw: Microbial Community Assembly in Changing Arctic Landscapes Samuel Bratsman Poster 08:30 - 12:00 Hall EFG
B51M Synthesis of Initial Flux Data From a Retrogressive Thaw Slump in Northern Alaska Kaj Lynöe Poster 08:30 - 12:00 Hall EFG
B51M The Niche Identity: Manipulating Redox and Temperature to Identify Microbial Niches in Post-Thaw Microbial Communities Nathan Alexander Poster 08:30 - 12:00 Hall EFG
B51M Hydrologic and Thermal Changes in Supra-Permafrost Soils and Aquifers Over the Last Four Decades of Warming Neelarun Murkherjee Poster 08:30 - 12:00 Hall EFG
B51M Methane Fluxes Spatialization from Chamber Measurement to UAV and Sentinel-2 in the Alaskan Arctic Tundra Environment Stefano Ponti Poster 08:30 - 12:00 Hall EFG
B51M Climate Controls on Mercury Distribution in Arctic Sedimentary Records: from Marine sediment to Permafrost Masao Uchida Poster 08:30 - 12:00 Hall EFG
B51M Characterization of F-region neutral wind response times and its controlling factors during substorms Katherine Davidson Poster 08:30 - 12:00 Hall EFG
B52CB51M-01 Elevated methane emissions and carbon cycling in a retrogressive thaw slump in northern Alaska Kyle Arndt Oral 10:35 - 10:45 261-262
B52C-03 Root exudation stimulates permafrost carbon decomposition Fernando Monaño López Oral 10:55 - 11:05 261-262
B52C-05 Are We Digging Deep Enough? Understanding the role of the transition zone in permafrost carbon emissions Claudia Czimczik Oral 11:15 - 11:25 261-262
B52C-07 Establishment and utilization of a pan-Arctic SOC fraction database to assess tundra soil carbon vulnerability to climate change You Jin Kim Oral 11:35 - 11:45 261-262
B52C-08 Representing the effects of thermokarst disturbance on arctic and boreal carbon cycling in a process-based model Benjamin Maglio Oral 11:45 - 11:55 261-262