###	Change in Antarctic Ice Shelf Area from 2009 to 2019

###	Data downloaded from https://doi.org/10.5281/zenodo.7830050 on 2026-01-30
    Andreasen, J. R., Hogg, A. E., & Selley, H. L. (2023). Change in Antarctic Ice Shelf Area from 2009 to 2019 [Data set]. Zenodo. https://doi.org/10.5281/zenodo.7830051

###	Processing steps:

    1.  Download full zip package from https://zenodo.org/api/records/7830051/files-archive and extract to cwd/input
    
    2.  Run 02_prepare_shp.py from cwd
        * Extract and merge all ice-shelf boundary Shapefiles from ZIP packages in cwd/input
        * Derive shelf and year from each shapefile name
        * Write combined shapefile to cwd/output