I am working on a personal 3D project which combines metadata from shapefiles, and rasters for topography, true color, bathymetry, etc...
I am using the Blue marble images (which I understand are using the WSG Datum WGS84 and the Plate Carrée projection) with shapefiles from natural-earth (which also use the WSG Datum WGS84).
It was my understanding that both are using the same projection (which could be referenced with epsg:4326) and indeed they seem to match to a point.
However when looking at lands near the the poles, some inconsistencies are very apparent (see screenshot of Greenland below)
Looking at the Blue Marble Navigator (blue-marble.de) which offers an interface to navigate through the Blue Marble images, I noticed the exact same discrepancy (see screenshot below, with the mismatched black zones)
Should I re-project the raster/shapefiles with a different projection, or are the Blue Marble images altogether unfit to be correctly matched to epsg:4326 shapefiles?