Granularity

In principle the granularity is defined as one to many data sets per event. A set should consist of e.g. all parameters belonging to one analysis or method or category. Examples of typical data set granules are:
 * Physical oceanography from a CTD
 * Grain size distribution of a sediment core
 * Photos from one sea-bed ROV station
 * Mineralogy of surface sediments
 * Isotopes measured in a biological object
 * Oxygen lander profile through the water/sediment interface
 * Time series with oceanographic measurements over one year
 * Seismic profile