Tidewater Glacier Frontal Ablation Calculation Tool (TG_FACT) ...

• Main Author: Fahrner, Dominik
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: Zenodo 2023
• Subjects: greenlandic; Tidewater
• Online Access: https://dx.doi.org/10.5281/zenodo.10278429; https://zenodo.org/doi/10.5281/zenodo.10278429

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: F – Frontal ablation during time intervals [Gt/d] Max_Error_F – Maximum error over total time period [Gt/d] Date – Midpoint of time intervals on which output data defined [yyyy-mm-dd] D – Discharge during time intervals [Gt/d] TMC – Terminus mass change (dM/dt) during time intervals [Gt/d] A tutorial on how to run the processing chain is available in the ...