This directory contains three folders:

1) age_grids_AREPS2016
2) bottom_water_temp_grids
3) oceanic_crustal_C02_grids

All filenames contain the reconstruction age as an integer number.

The age grids are those from Muller et al. (AREPS, 2016).

"bottom_water_temp_grids" contains netcdf files of paleo-bottom water temperature at 0.1 deg resolution for any given parcel of ocean crust AT THE TIME OF ITS FORMATION

gmt grdinfo produces this output:

bottom_water_temp_0.nc: Title: Paleo bottom water temperature
bottom_water_temp_0.nc: Command: xyz2grd tmp2.xyz -Gbwt_grids/bwtgrid_0.nc -I0.1 -Rg -Ddegree/degree/temperature/1/0/NaN/Paleo bottom water temperature/temperature at time of crustal accretion -V
bottom_water_temp_0.nc: Remark: temperature at time of crustal accretion
bottom_water_temp_0.nc: Gridline node registration used [Geographic grid]
bottom_water_temp_0.nc: Grid file format: nf = GMT netCDF format (32-bit float), COARDS, CF-1.5
bottom_water_temp_0.nc: x_min: 0 x_max: 360 x_inc: 0.1 name: longitude [degrees_east] n_columns: 3601
bottom_water_temp_0.nc: y_min: -90 y_max: 90 y_inc: 0.1 name: latitude [degrees_north] n_rows: 1801
bottom_water_temp_0.nc: z_min: 1.74731838703 z_max: 19.4572505951 name: temperature
bottom_water_temp_0.nc: scale_factor: 1 add_offset: 0
bottom_water_temp_0.nc: format: netCDF-4 chunk_size: 129,129 shuffle: on deflation_level: 3

"oceanic_crustal_C02_grids" contains netcdf files of mean oceanic crustal CO2 content in percent

gmt grdinfo produces this output:

co2_percent_0.nc: Title: Mean_oceanic_crustal_CO2_content_in_percent
co2_percent_0.nc: Command: 
co2_percent_0.nc: Remark: 
co2_percent_0.nc: Gridline node registration used [Geographic grid]
co2_percent_0.nc: Grid file format: nf = GMT netCDF format (32-bit float), COARDS, CF-1.5
co2_percent_0.nc: x_min: -180 x_max: 180 x_inc: 0.1 name: longitude [degrees_east] n_columns: 3601
co2_percent_0.nc: y_min: -90 y_max: 90 y_inc: 0.1 name: latitude [degrees_north] n_rows: 1801
co2_percent_0.nc: z_min: 0 z_max: 2.87831926346 name: CO2
co2_percent_0.nc: scale_factor: 1 add_offset: 0
co2_percent_0.nc: format: netCDF-4 chunk_size: 129,129 shuffle: on deflation_level: 3


Reference:  Müller, R. Dietmar and  Dutkiewicz, A., Oceanic crustal carbon cycle drives 26 million-year atmospheric carbon dioxide periodicities, in review.