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Russell Callahan
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Forest vulnerability to drought controlled by bedrock composition
RP Callahan, CS Riebe, LS Sklar, S Pasquet, KL Ferrier, WJ Hahm, ...
Nature Geoscience 15 (9), 714-719, 2022
482022
Strong slope‐aspect control of regolith thickness by bedrock foliation
JD Leone, WS Holbrook, CS Riebe, J Chorover, TPA Ferré, BJ Carr, ...
Earth Surface Processes and Landforms 45 (12), 2998-3010, 2020
302020
Arrested development: Erosional equilibrium in the southern Sierra Nevada, California, maintained by feedbacks between channel incision and hillslope sediment production
RP Callahan, KL Ferrier, J Dixon, A Dosseto, WJ Hahm, BS Jessup, ...
GSA Bulletin 131 (7-8), 1179-1202, 2019
292019
Subsurface weathering revealed in hillslope‐integrated porosity distributions
RP Callahan, CS Riebe, S Pasquet, KL Ferrier, D Grana, LS Sklar, ...
Geophysical Research Letters, e2020GL088322, 2020
262020
Anisovolumetric weathering in granitic saprolite controlled by climate and erosion rate
CS Riebe, RP Callahan, SBM Granke, BJ Carr, JL Hayes, MS Schell, ...
Geology 49 (5), 551-555, 2021
172021
Symmetry in hillslope steepness and saprolite thickness between hillslopes with opposing aspects
AM Donaldson, M Zimmer, MH Huang, KN Johnson, ...
Journal of Geophysical Research: Earth Surface 128 (7), e2023JF007076, 2023
102023
Geostatistical rock physics inversion for predicting the spatial distribution of porosity and saturation in the critical zone
D Grana, AD Parsekian, BA Flinchum, RP Callahan, NY Smeltz, A Li, ...
Mathematical Geosciences 54 (8), 1315-1345, 2022
82022
Aspect differences in vegetation type drive higher evapotranspiration on a pole‐facing slope in a California oak savanna
A Donaldson, D Dralle, N Barling, RP Callahan, ME Loik, M Zimmer
Journal of Geophysical Research: Biogeosciences 129 (7), e2024JG008054, 2024
22024
Geologic and tectonic controls on deep fracturing, weathering, and water flow in the central California Coast Range
RP Callahan, MH Huang, A Donaldson, B Hudson‐Rasmussen, ...
Geophysical Research Letters 51 (13), e2024GL109129, 2024
12024
Expect the unexpected: Four hypotheses to explain unexpected critical zone symmetry in hillslopes with opposing aspect
AM Donaldson, MA Zimmer, MH Huang, KN Johnson, ...
Authorea Preprints, 2023
12023
Hmmmm, where to start?: Conditions supporting the initiation of a critical zone on a bedrock surface and feedbacks driving expansion
SP Bemis, S Holbrook, B Flinchum, BT Aulenbach, R Callahan, ...
AGU24, 2024
2024
Vegetation water-use drives persistent differences in rock moisture content between hillslopes with opposing aspects
RP Callahan, N Barling, AM Donaldson, MH Huang, DM Rempe, D Smith, ...
AGU Fall Meeting Abstracts 2023, H31E-08, 2023
2023
Shallow and deep critical zone controls on water movement and storage
AM Donaldson, RP Callahan, N Barling, MH Huang, DM Rempe, ...
AGU Fall Meeting Abstracts 2023, H44B-07, 2023
2023
Influence of Bedrock Weathering on Soil Production and Hillslope Morphology
J Lee, S Moon, CS Riebe, R Callahan
AGU Fall Meeting Abstracts 2023 (1641), EP51D-1641, 2023
2023
Oak water use patterns between contrasting hydroclimatic and vadose zone storage conditions
AM Donaldson, N Barling, RP Callahan, S Motz, DM Rempe, MA Zimmer
AGU Fall Meeting Abstracts 2023 (1757), H31T-1757, 2023
2023
Soils in the balance: Using cosmogenic nuclides to test for steady-state soil thickness on hillslopes
N Weinheimer, CE Lukens, CS Riebe, R Callahan, KP Norton, S Moon, ...
AGU Fall Meeting Abstracts 2023, EP42C-02, 2023
2023
Links between sheet jointing and weathering in saprolite and weathered rock revealed by ground penetrating radar and seismic refraction surveys
B Flinchum, J Briglio, CS Riebe, R Callahan, LS Sklar, S Holbrook
AGU Fall Meeting Abstracts 2023 (1999), EP23F-1999, 2023
2023
Connections in the Critical Zone: Bringing Cutting-Edge Science to K-12 Educators
L Eligator, JL Hayes, N Cist, R Uecker, R Callahan
AGU Fall Meeting Abstracts 2023 (763), ED11B-0763, 2023
2023
Deep critical zone weathering influenced by rock damage from active faults: Implications for catchment water balances
RP Callahan, MH Huang, AM Donaldson, B Hudson-Rasmussen, ...
AGU Fall Meeting Abstracts 2022, H22E-08, 2022
2022
Understanding the deep critical zone in the South Carolina Piedmont using borehole sampling and imaging
C Kitamikado, B Carr, AJ Noren, RP Callahan, S Holbrook, JL Hayes, ...
AGU Fall Meeting Abstracts 2022, EP55C-0805, 2022
2022
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