Array data, commonly also known as “grid” or “raster” data, represent a large part of today’s operational data, including 1D timeseries, 2D remote sensing imagery, 3D x/y/t image timeseries and x/y/z geophysical data, 4D x/y/z/t ocean data, as well as 5D grid meteo simulations, which are 3D spatial cubes over two time axes-today’s analysis and yesterday’s one-day forecast have the same validity time but different forecast times (Domenico et al. 2006). Being one particular class of the general category of space/time varying data it forms a good study fi eld for further scientifi c progress into additional data access and analytics.