Member Since 2010
Margaret A. Zimmer
Associate Professor, University of Wisconsin Madison
AGU Research
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Bioturbated Dry Ravel and Soil Mixing in a Post-Wildfire Environment
HILLSLOPE MORPHOLOGY AND PROCESSES FROM FAILURE TO FORM II POSTER
earth and planetary surface processes | 13 december 2024
Eliza Ross, Danica L. Roth, Rahul Kaushal, Samanth...
Wildfires act as potent agents of weathering and erosion, triggering the mobilization of dry ravel sediment and often resulting in temporary increases...
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Mobilization of Biologically Labile Levoglucosan from Fire-affected Watersheds in Central Coastal California
WILDFIRE IMPACTS ON WATERSHED HYDROLOGY, BIOGEOCHEMISTRY, AND BIODIVERSITY I ORAL
global environmental change | 12 december 2024
Riley Barton, Christina Richardson, Maya Montalvo,...
The burning of biomass during wildfires produces pyrogenic carbon (PyC), which impacts water quality and carbon biogeochemistry. PyC comprises a conti...
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Geologic and Tectonic Controls on Deep Fracturing, Weathering, and Water Flow in the Central California Coast Range
GEOPHYSICAL RESEARCH LETTERS
04 july 2024
Russell P. Callahan, Mong-Han Huang, Amanda M. Do...
The creation of fractures in bedrock dictates water movement through the critical zone, controlling weathering, vadose zone water storage, and grou...
Aspect Differences in Vegetation Type Drive Higher Evapotranspiration on a Pole‐Facing Slope in a California Oak Savanna
JOURNAL OF GEOPHYSICAL RESEARCH: BIOGEOSCIENCES
26 june 2024
Amanda M. Donaldson, David Dralle, Nerissa Barling...
Quantifying evapotranspiration (ET) is critical to accurately predict vegetation health, groundwater recharge, and streamflow generation. Hillslope...
Exploring the Complex Effects of Wildfire on Stream Water Chemistry: Insights From Concentration‐Discharge Relationships
WATER RESOURCES RESEARCH
06 february 2024
Christina Richardson, Maya Montalvo, Sasha Wagner,...
Wildfires are a worldwide disturbance with unclear implications for stream water quality. We examined stream water chemistry responses immediately ...
Shallow and deep critical zone controls on water movement and storage
ADVANCING UNDERSTANDING OF MOUNTAINOUS CRITICAL ZONES THROUGH OBSERVATIONS AND NUMERICAL EXPERIMENTS II ORAL
hydrology | 14 december 2023
Amanda M. Donaldson, Russell P. Callahan, Nerissa...
Subsurface weathering exerts a strong control on water storage and movement within hillslopes, which has important consequences for groundwater rechar...
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Vegetation water-use drives persistent differences in rock moisture content between hillslopes with opposing aspects
CRITICAL ZONE GEOPHYSICS, FROM PETROPHYSICS TO FIELD MONITORING I ORAL
hydrology | 13 december 2023
Russell P. Callahan, Nerissa Barling, Amanda M. D...
In semi-arid mountain landscapes, variations in hillslope aspect control the amount of solar insolation, which lead to profound differences in microcl...
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Oak water use patterns between contrasting hydroclimatic and vadose zone storage conditions
FRONTIERS IN ECOHYDROLOGY II POSTER
hydrology | 13 december 2023
Amanda M. Donaldson, Nerissa Barling, Russell P. ...
Within semi-arid ecoregions, water storage below the soil and within weathered bedrock (herein called rock moisture) has been shown to be an important...
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