@article{TEXTUAL,
      recid = {13725},
      author = {Robel, Alexander A. and Tsai, Victor S. and Minchew, Brent  and Simons, Mark},
      title = {Tidal modulation of ice shelf buttressing stresses},
      journal = {Annals of Glaciology},
      address = {2017-09-04},
      number = {TEXTUAL},
      abstract = {Ocean tides influence the flow of marine-terminating  glaciers. Observations indicate that the large fortnightly  variations in ice flow at Rutford Ice Stream in West  Antarctica originate in the floating ice shelf. We show  that nonlinear variations in ice shelf buttressing driven  by tides can produce such fortnightly variations in ice  flow. These nonlinearities in the tidal modulation of  buttressing stresses can be caused by asymmetries in the  contact stress from migration of the grounding line and  bathymetric pinning points beneath the ice shelf. Using a  simple viscoelastic model, we demonstrate that a  combination of buttressing and hydrostatic stress  variations can explain a diverse range of tidal variations  in ice shelf flow, including the period, phase and  amplitude of flow variations observed at Rutford and  Bindschadler Ice Streams.},
      url = {http://knowledge.uchicago.edu/record/13725},
}