Depending on the spatial resolution/pixel size of the satellite images they are typically classified in very high resolution (<2 m spatial resolution), high (<10 m), moderate (better than 100 m) and coarse (several hundred metres) data sets. Only the first three are typically of interest for shallow-water bathymetric mapping. Imaging satellite data re-corded every place on earth in high frequency and archive the image data. We can now look back to an archive of about 15 years for very high-resolution data and almost 40 years of moderate resolution data sets which allows not only mapping of most recent condition but also the change over time. Satellite data coverage is not equally distributed around the globe and ranges from few data sets (e.g. remote places in the higher latitudes) to several hundreds to thousands of data sets (e.g.urban areas).