# Data fetched via HTTP from ['https://www.bodc.ac.uk/data/open_download/ibcao/ibcao_v4_400m_ice/cfnetcdf/']

# Data processed using the following steps:

gdalwarp -cutline {assets_dir}/latitude_shape_40_degrees.geojson -crop_to_cutline -r bilinear -t_srs EPSG:3413 -s_srs "+proj=stere +lat_0=90 +lat_ts=75 +datum=WGS84" -dstnodata -9999 -tr 400 400 --config GDAL_NETCDF_IGNORE_XY_AXIS_NAME_CHECKS true -co COMPRESS=DEFLATE NETCDF:{input_dir}/IBCAO_v4_400m_ice.nc:z {output_dir}/bathymetric_chart.tif

gdal_translate -co TILED=YES -co COMPRESS=DEFLATE -co PREDICTOR=3 {input_dir}/bathymetric_chart.tif {output_dir}/compressed.tif

cp {input_dir}/compressed.tif {output_dir}/bathymetric_chart.tif && gdaladdo -r average {output_dir}/bathymetric_chart.tif 2 4 8 16