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Member Since 2006
Ciaran J. Harman
Associate Professor, Johns Hopkins University
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Evidence of Subsurface Control on the Coevolution of Hillslope Morphology and Runoff Generation
WATER RESOURCES RESEARCH
09 october 2024
David Litwin, Ciaran J. Harman

Topography is a key control on runoff generation, as topographic slope affects hydraulic gradients and curvature affects water flow paths. Simultan...

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Catchment Coevolution and the Geomorphic Origins of Variable Source Area Hydrology
WATER RESOURCES RESEARCH
17 june 2024
David Litwin, Gregory E. Tucker, Katherine R. Barn...

Features of landscape morphology—including slope, curvature, and drainage dissection—are important controls on runoff generation in upl...

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Similarities in Storage and Transport of Sulfate in Forested and Suburban Watersheds, Despite Anthropogenically Elevated Suburban Sulfate
JOURNAL OF GEOPHYSICAL RESEARCH: BIOGEOSCIENCES
04 january 2024
Cassandra Cosans, Maya L. Gomes, Melinda Marsh, Jo...

Sulfate is a potential pollutant and important nutrient linked with the nitrogen, carbon, and phosphorus cycles. The importance of different anthro...

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Seasonal freeze-thaw alters age dynamics in two non-perennial permafrost underlain mountain catchments: Insights from hydrometric data, end-member mixing, and StorAge Selection functions.
APPLICATIONS IN SNOW HYDROLOGY: LINKING SNOWPACK AND STREAMFLOW ACROSS SCALES I POSTER
hydrology | 15 december 2023
Arsh Grewal, Ciaran J. Harman, Erin M. Nicholls, S...
Seasonality plays a critical role in the rate, timing and magnitude of hydrological and chemical transport in permafrost underlain mountain catchments...
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On the importance of near-peer-mentoring: an example from GNOMES, a critical zone geophysics, experiential learning field program.
BEYOND THE TALK: MEETING THE CHALLENGE OF DIVERSIFYING THE GEOSCIENCE PROFESSION II ORAL
education | 15 december 2023
Kristina Keating, Yonesha Y. Donaldson, Angelo Tar...
GNOMES, Geophysics of the Near surface, an Outdoor Motivational Experience for Students, is an inclusive critical zone geophysics field experience pro...
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Testing hypotheses linking hillslope morphology to variable source area runoff generation: a natural experiment
FROM RIDGELINES TO VALLEYS: HILLSLOPE PROCESSES AND MORPHOLOGY ACROSS SCALES I ORAL
earth and planetary surface processes | 14 december 2023
David Litwin, Ciaran J. Harman
Topography is a key control on runoff generation from shallow groundwater, as topographic slope affects hydraulic gradients and landscape convergence ...
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An Adaptive Non-Parametric Bayesian Approach to Dynamic Catchment Transit Time and SAS Function Inference and Uncertainty Quantification
ADVANCES IN DATA ASSIMILATION AND UNCERTAINTY QUANTIFICATION FOR WATER RESOURCES MANAGEMENT II POSTER
hydrology | 14 december 2023
Esther Xu Fei, Ciaran J. Harman, Fei Lu
Understanding catchment transit is essential for unraveling hydrologic processes and facilitating effective water resources management. While various ...
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Using seismic refraction tomography to compare critical zone structure within first-order basins in two distinct lithologies in Baltimore County, MD.
CRITICAL ZONE GEOPHYSICS, FROM PETROPHYSICS TO FIELD MONITORING II POSTER
hydrology | 13 december 2023
Claire Alley, Kaila Lewis, Nicholas Kimble-Holls, ...
Quantifying the critical zone structure, including soil thickness and depth to bedrock, is essential for understanding how water moves in the critical...
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