Model output for: Rate of mass loss across the instability threshold for Thwaites Glacier determines rate of mass loss for entire basin

• Main Authors: Waibel, Michael, Hulbe, Christina, Jackson, Charles, Martin, Daniel
• Format: Other/Unknown Material
• Language: English
• Published: Zenodo 2018
• Subjects: Antarc*; Antarctica; Thwaites Glacier; West Antarctica
• Online Access: https://doi.org/10.5281/zenodo.1134979

Results from “Rate of mass loss across the instability threshold for Thwaites Glacier determines rate of mass loss for entire basin.” The tar files herein contain multi-resolution grounding line position data and 4 km resolution output of modeled fields for all model runs. The region of interest represented is the Thwaites catchment in West Antarctica. The files for modeled fields have been coarsened or “flattened” to 4 km from their original adaptive mesh refinement (AMR) structure. Metadata contents 1. Grounding line position data – text files 2. Modeled Fields – HDF5 files 3. BISICLES grid and coordinate system 1. Grounding line position data Tar Files with "GLposition" in the title contain the annual grounding line positions, at cell faces, over the discretized Thwaites catchment for the specified model run. Each tar file contains a series of text files for a particular model run that used a specific background melt rate. The background marine melt rate is specified in the third field of the tar file name as delimited by the underscore character (“_”). Additionally, the last year of anomalous forcing before it was turned off leaving only the background marine melting is listed in the third field. nonuniformMM indicates the non-uniform background marine melting. uniformMM indicates the uniform background marine melting. 260 and 270 are the last model years where anomalous marine melting were applied. After untarring a file, the naming convention for the individual text files is seen to be similar to the name of the respective tar file. The first field as delimeted by the underscore character contains either “glnonMM” or “gluniMM” followed by the last year of anomalous forcing used; e.g “gluniMM260”. The second field indicates the model year. Note that the last year forced is included for all runs. The text files contain three columns of data: an indicator of model resolution followed by x- and y- coordinates, respectively. Location coordinate units are meters and are BISICLES physical coordinates (see 3. ...