Now showing items 1-18 of 18

    • Supporting Data for: Do large earthquakes occur at regular intervals through time? A perspective from the geologic record. 

      Williams, Randolph T; Davis, Joshua R; Goodwin, Laurel B (2019-06-03)
      We analyzed a catalogue of 31 published earthquake chronologies to assess the commonality of quasi-periodic earthquake recurrence across a range of fault types and tectonic settings. The statistical approach we employ ...
    • Biax experiment data 

      Zoet, Lucas (AGU, 2020)
      While analysis of glacial seismicity continues to be a widely-used method for interpreting subglacial processes, the underlying mechanics controlling basal stick-slip seismicity remain speculative. Here, we report on ...
    • Múlajökull GPR 

      Woodard, Jacob B. (2020-06)
      GPR dataset described in Woodard JW, Zoet LK, Benediktsson ÍÖ, Iverson NR, Finlayson, A (2020) Insights into drumlin development from ground penetrating radar at múlajökull, iceland, a surge-type glacier, Journal of ...
    • Bluff erosion data 

      Zoet, Lucas (AGU, 2020-09)
      The water level in Lake Michigan began rising in 2013. Historically, erosion of the bluffs along the shoreline increases when water levels rise and remain high, beginning at the toe and propagating upslope, potentially ...
    • Seasonality in cold coast bluff erosion processes 

      Zoet, Lucas; Roland, Collin (Geomorphology, 2020-09)
      High water levels in the Laurentian Great Lakes are causing widespread erosion of unlithified coastal bluffs and damaging infrastructure. Measurements of bluff recession along Wisconsin’s Lake Michigan coast are mostly ...
    • Proglacial_DEMs 

      Woodard, Jacob; Zoet, Lucas; Iverson, Neal; Helanow, Christian (2021)
      Proglacial digital elevation models (DEMs) from the Swiss Alps and the Canadian Rockies.
    • GBL Drumlins 

      Zoet, Lucas (2021-06-01)
      Drumlin shape has been hypothesized to correlate with ice flow duration and slip speed, but modern-day analogs and the Coulomb nature of till render the basis of these correlations in question. The evolution of flow-parallel ...
    • transient slip data 

      Zoet, Lucas (Journal of Glaciology, 2021-11-24)
      Glacier slip is usually described using steady-state sliding laws that relate drag, slip velocity and effective pressure, but where subglacial conditions vary rapidly transient effects may influence slip dynamics. Here we ...
    • Data Repository Items 

      Turnier, Rachelle (2022)
    • Sample Mount Images 

      Turnier, Rachelle (2022)
    • An experimental baseline for ice-till strain indicators 

      Zoet, Lucas (Canadian Journal of Earth Sciences, 2022)
      Subglacial till can deform when overriding ice exerts shear traction at the ice-till interface. This deformation leaves a strain signature in the till, aligning grains in the direction of ice flow and producing a range of ...
    • Data for "Characterizing sediment flux of deforming glacier beds" 

      Hansen, Dougal; Zoet, Lucas (Journal of Geophysical Research: Earth Surface, 2022-03-01)
      Deformation of subglacial sediment during basal slip shapes the beds of many fast-flowing glaciers and ice streams. The resultant sediment flux impacts glacier dynamics and rates of subglacial erosion over a range of ...
    • Transport properties of fast ice within the nearshore 

      Zoet, Lucas (2022-07-01)
      Fast ice affects many coastlines in high- and mid-latitude regions, shaping the coastal morphology by acting as both a protective barrier from winter storms and as an erosive agent through sediment entrainment and transport. ...
    • Data for "A power-based abrasion law for use in landscape evolution models" 

      Hansen, Dougal D.; Brooks, Jeremy P.; Zoet, Lucas K.; Stevens, Nathan T.; Smith, Lillian; Bate, Charlotte E.; Jahnke, Ben J. (2022-10)
      Subglacial abrasion drives erosion for many glaciers, inundating forefields and proglacial marine environments with glaciogenic sediments. Theoretical treatments of this process suggest that bedrock abrasion rates scale ...
    • Constraints on transient glacier slip with ice-bed separation 

      Zoet, Lucas; Stevens, Nate (UW Madison, 2022-11-01)
      Glacier slip facilitates fast glacier flow and modulates sea-level rise, but empirical constraints on slip-controlling processes at relevant scales are limited. Modern slip rules often assume debris-free basal ice and ...
    • Data for "Presence of Frozen Fringe Impacts Soft-Bedded Slip Relationship" 

      Hansen, Dougal (2024)
      Glaciers and ice streams flowing over sediment beds commonly have a layer of ice-rich debris adhered to their base, known as a “frozen fringe,” but its impact on basal friction is unknown. We simulated basal slip over ...
    • The effects of beach energy on sediment entrainment within the nearshore ice complexLake core data 

      Zoet, Lucas (2024)
      Shore ice forms along beaches in cold climates and during its formation is capable of entraining sediment from the nearshore. Upon breakup, entrained sediment within the ice can be rafted to deeper waters, melt out and ...
    • Repository data of striation scans 

      Zoet, Lucas (2024-01)
      Abrasion acts to smooth glacial terrains and leaves behind linear scratch-like features (striations) on bedrock landscapes. Striations are often used as measures of glacier flow directions, but their morphology can provide ...