Tidewater Glacier Frontal Ablation Calculation Tool (TG_FACT)
Description
This processing chain will calculate monthly, three-monthly or annual frontal ablation for Greenlandic tidewater glaciers based on the following open source input data:
- TermPicks Terminus delineations (Goliber and Black, 2021).
- Satellite image (for manual delineation of fjord walls).
- Glacier velocity (code will automatically download ITS_LIVE velocities ~15 GB)
- Two Digital Elevation Models (preferably ArcticDEM and AeroDEM; Porter et al., 2018, Korsgaard et al., 2016)
- Surface change rate (Khan, 2017)
- Bedrock Topography (BedMachine v4; Morlighem et al., 2017, 2021).
- Solid Ice Discharge (Mankoff, 2019)
The resulting dataset contains the following variables:
- tbounds - boundaries of time intervals on which output data defined
- t - midpoint of time intervals on which output data defined
- D - discharge during time intervals [GT/yr]
- TMC - terminus mass change during time intervals [GT/yr]
- FA - frontal ablation during time intervals [GT/yr]
- D0 - discharge masking out interpolated values [GT/yr]
- TMC0 - terminus mass change masking out interpolated values [GT/yr]
- FA0 - frontal ablation masking out interpolated values [GT/yr]
- Error - Maximum error during time interval [GT/yr]
A tutorial on how to run the processing chain is available on GitHub: https://github.com/DominikFahrner/TG_FACT
When using this processing chain, please cite:
Fahrner, D., Slater, D., KC, A., Cenedese, C., Sutherland, D.A., Enderlin, E., de Jong, F., Kjeldsen, K.K., Wood, M., Nienow, P. Nowicki, S., Wagner, T. (2023): A Frontal Ablation Dataset for 49 Tidewater Glaciers in Greenland.
The complete dataset associated with the publication can be found at https://zenodo.org/records/10076253
Files
DominikFahrner/TG_FACT-v1.0.zip
Files
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