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KITP Conference: Hard Problems in Soft Earth Geophysics
(Jan 6-9, 2026)
Coordinators: Sujit Datta, Doug Jerolmack, and Vashan Wright

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Conference Overview | talks | Schedule | PDF Schedule | Program Overview

Tuesday, Jan 6, 2026

Fracture in soft earth materials, Chair: Douglas Jerolmack (U Penn)

8:50am Mark Bowick (KITP) Welcome[Video]
9:00am David Weitz (Harvard) Lab-scale models for hydro-fracture[Video][CC]
9:45am Jill Marshall (Portland State) Are some break-ups harder than others? Pondering the state of 'crackiness', wind,-forest structure, and soft-earth mechanics over time[Slides][Video][CC]
10:30am

Morning Break

11:00am John Kolinski (EPFL) Polymer gels to probe failure processes in geomaterials[Video][CC]
11:45am Yue (Olivia) Meng (Purdue) From Fracture to Flow: How Calving Ice Sheets Drive Melange Behavior and Fjord Ocean Dynamics[Video][CC]
12:30pm

Lunch Break

Earthquakes and friction, Chair: Vashan Wright (UCSD)

2:00pm Ahmed Elbanna (U Illinois) Earthquakes: A Tale of Scales, Rheology, Feedback, Memory, Hysteresis, Criticality...[Video][CC]
2:45pm Mahesh Bandi (OIST) When Friction Remembers: Preisach Hysteresis in Granular Matter[Embargoed]
3:30pm

Afternoon Break

4:00pm Itai Einav (U. Sydney) From soil mechanics to geophysical friction - a hydrodynamic approach[Video][CC]
4:45pm Behrooz Ferdowsi (U. Houston) Yielding, Flow, and Healing in Slightly Wet Granular Matter: Humidity-Induced Capillary Cohesion and Its Role in Debris Flows, Landslides, and Post-Fire Hazards[Video]
5:30pm

SHUTTLE TO BWSCI

Wednesday, Jan 7, 2026

Icy, confined, and rare, Chair: Nathalie Vriend (CU Boulder)

9:00am Ching Yao Lai (Stanford) Dense granular rheology from fluctuations[Video][CC]
9:45am Justin Burton (Emory) A microstructural rheological model for transient creep in polycrystalline ice[Video][CC]
10:30am

Morning Break

11:00am Amir Pahlavan (Yale) Chemical Gradients as Hidden Drivers in Soft Earth Materials[Video][CC]
11:45am Rachel Glade (Rochester) The Probabilistic Physics of Sediment Transport: From Rarefied Bedload to Dense Force Chain Networks[Video][CC]
12:30pm

Lunch Break

Patterns and instabilities, Chair: Sujit Datta (Caltech)

2:00pm Irmgard Bischofberger (MIT) Fractured Flows: Bubbles in Dense Suspensions[Embargoed]
2:45pm Ousmane Kodio (UCSB) Dynamic of folding and wrinkling in geophysics[Embargoed]
3:30pm

Afternoon Break

4:00pm Willian Assis (Minnesota) How microbes shape landscapes: from biosignatures to bedform transitions and acoustic signals[Video][CC]
4:45pm David Meer (Emory) The Holes in Porous Media[Slides][Video][CC]
5:30pm

RECEPTION

6:00pm

SPECIAL EVENTS DINNER

7:30pm

SHUTTLE TO BWSCI

Thursday, Jan 8, 2026

Creep, yield and failure, Chair: Shravan Pradeep (U Penn)

9:00am Ezequiel Ferrero (CAB-CNEA) Soils as yield-stress materials? Athermal creep facilitated by cyclic perturbations[Slides][Video][CC]
9:45am Cacey Bester (Swarthmore) Sand's Approach to Yield: How Granular Materials Creep and Fail[Video][CC]
10:30am

Morning Break

11:00am Karen Daniels (NC State) Granular flow and rigidity: from the lab to the solar system[Slides][Video]
11:45am Paulo Arratia (U Penn) Structure, memory, & rheology in 2D amorphous solids[Video]
12:30pm

Lunch Break

Material properties, memory and flow, Chair: Paulo Arratia

2:00pm Shravan Pradeep (U Penn) Challenges in developing constitutive relations for Earth-mediated materials[Video]
2:45pm Emanuela Del Gado (Georgetown) Memory of Gelation and Memory of Flow[Video]
3:30pm

Afternoon Break

4:00pm Katherine Barnhart (USGS) Forecasting the motion of landslides as a unifying challenge[Embargoed]
5:30pm

RECEPTION

6:00pm

SPECIAL EVENTS DINNER

7:30pm

SHUTTLE TO BWSCI

Friday, Jan 9, 2026

9:00am Alban Sauret (Maryland) How to make a mudslide?: Open questions[Embargoed]
9:45am Tejas S Murthy (IISc) Sticky sand - looking at cohesive granular materials at multiple length scales[Video][CC]
10:30am

Morning Break

11:00am Jun Zhang (NYU) Mobile Boundaries in Thermal Convection[Video][CC]
11:45am All Participants Closing remarks[Video]
12:30pm

Lunch Break

2:00pm

CONFERENCE END - SHUTTLE TO BWSCI/SB Airport/SB Airbus Goleta location. (See Registration Desk BEFORE FRIDAY to sign up.)

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