Explanation for binary files inside source package according to
  https://lists.debian.org/debian-devel/2013/09/msg00332.html

Files: data/Hypsometry.rda
Documented: man/ImageOcean.Rd
  The earths hypsometry (land elevation) and the ocean's bathymetry

Files: data/Oxsat.rda
Documented: man/Oxsat.Rd
  Percentage Oxygen Saturation from the NODC World Ocean Atlas 2005 (WOA05). The values are gridded in 2dg README.source changelog control copyright rules salsa-ci.yml source upstream watch 2dg longitude - latitude sets,

 -- Andreas Tille <tille@debian.org>  Tue, 21 Sep 2021 06:40:02 +0200
