URL | https://www.bco-dmo.org/dataset/828821 |
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Created | November 13, 2020 |
Modified | November 13, 2020 |
State | Preliminary and in progress |
Acquisition Description
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).
Processing Description
Data were processed using Matlab (R_2017a). 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).
BCO-DMO data manager processing notes:
* Zipped together the three EA map .mat files to serve in this dataset.
* Also exported the matrices as csv files using Matlab’s writematrix() function.
Dataset Maintainers
Name | Affiliation | Contact |
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James A. Bradley | Queen Mary University of London | ✓ |
Douglas E. LaRowe | University of Southern California (USC) | |
Douglas E. LaRowe | University of Southern California (USC) | |
Amber York | Woods Hole Oceanographic Institution (WHOI BCO-DMO) |