This project used bio-energetic modeling to quantify a number of subseafloor parameters on a 0.25°×0.25° resolution global grid. We calculate, in three dimensions, for all Quaternary-age sediment (i.e. global sediment deposited in the last 2.59 million years):

• The global distribution and rate of particulate organic carbon (POC) degradation.

• The global distribution of cells, using data from Kallmeyer et al, 2012. (DOI: 10.1073/pnas.1203849109).

• The global distribution of electron acceptors, using data from D’Hondt et al, 2015 (DOI: 10.1038/ngeo2387) and Egger et al, 2018 (DOI: 10.1038/s41561-018-0122-8)

• The thermodynamic properties of POC degradation.

• The cell-specific power (i.e. energy per unit time) per individual microbial cell.
 

Data are provided on a 721×1441 grid, where each cell represents 0.25°×0.25°. Grid cell (1,1) corresponds to (-90.00,-180.00).  Separate grids are provided for sediment at 10cm beneath the seafloor, at the layer of sediment deposited at the beginning of the Holocene (11,700 years ago), and the layer of sediment deposited at the beginning of the Pleistocene (2.59 million years ago).