# Data accessed manually by a human following instructions:

Available via the publication website, and contained in the
Source Data Fig. 2 file.

# Data processed using the following steps:

ogr2ogr -lco ENCODING=UTF-8 -t_srs EPSG:3413 -clipdst {assets_dir}/latitude_shape_40_degrees.geojson -makevalid -sql 'SELECT
                        geom,
                        fid,
                        Track_name,
                        CAST(Tracenumber AS INTEGER) as Tracenumber,
                        lat,
                        lon,
                        CAST(alongtrack_distance_m AS REAL) as alongtrack_distance_m,
                        CAST("20m_ice_content_m" AS REAL) as "20m_ice_content_m"
                    FROM Ice_Layer_Output_Thicknesses' {output_dir}/final.gpkg {input_dir}/Ice_Layer_Output_Thicknesses.gpkg