Data to support "Rapid viscoelastic deformation slows marine ice sheet instability at Pine Island Glacier," by S Kachuck, D Martin, J Bassis, and S Price, submitted to GRL Contents: BISICLES GIANT-BISICLES source code (BISICLESsrc.tar.gz, untar with tar -xzvf BISICLESsrc.tar.gz) BISICLES configuration and data files necessary to rerun the primary simulations (Using BISICLES branch GIANT-BISICLES svn co https://anag-repo.lbl.gov/svn/BISICLES/public/branches/GIANT-BISICLES BISICLES) Data to recreate figures 2 and 3.