There are not gaps in the spatial and temporal coverage. Land grid cells are indicated by missing values (float, -999.0).
Not all prognostic biogeochemical model variables but just amm, nit, ldon, phos, sil, oxy, dia, flag, cyano, zoo, protzoo, detn and dets of the water column and sed_n and sed_sil of the sediment are provided here (please see the readme for the meaning of these abbreviations). The diagnostic variable chl and the grid information variables cell_thinkness, depth, and bathymetry are provided as well. Each nitrogen-containing prognostic and diagnostic variable has three counterparts with the suffixes "_atmos", "_ship", and "_agri" indicating the total atmosheric, shipping-related, and agricultural-related nitrogen, respectively, in this variable.