Data For "Impact of dust and temperature on primary productivity in Late Miocene oceans"

Impact of dust and temperature on primary productivity in Late Miocene oceans

This dataset contains marine biogeochemical outputs (NetCDF files) from modeling experiments with realistic late Miocene paleogeography, different CO2 levels and dust concentrations. The simulations focus on the evolution of primary productivity in response to aridification and global cooling. The simulations were carried out using the IPSL-CM5A2 general circulation model (Sepulchre et al. 2020 - IPSL-CM5A2 - an Earth system model designed for multimillennial climate simulations, GMD) and the PISCES-v2 biogeochemistry model (Aumont et al. 2015). It includes four simulations: Mio300Dust (300 ppm, dust concentration equal to pre-industrial level), Mio420Dust2 (420 ppm, dust concentration equal to pre-industrial level divided by 2), Mio420Dust10 (420 ppm, dust concentration equal to pre-industrial level divided by 10) and Mio420NoDust (420 ppm, dust concentration equal to pre-industrial level divided by 1000). The data are monthly averages over the last 100 years of the simulations.

Contact: [e-mail]

Experiments , see Pillot et al. (2024), Methods ans supplementary Informations for details.

INTPP : Vertically integrated primary production by phyto (mol/m2/s)

EPC100 : Export of carbon particles at 100 m (mol/m2/s)

LNlight : Light limitation term in Nanophyto (between 0 and 1)

LNnut : Nutrient limitation term in Nanophyto (between 0 and 1)

PPPHY : Primary production of nanophyto (mol/m3/s)

PPPHY2 : Primary production of diatoms (mol/m3/s)

Ndep : Nitrogen deposition from dust (mol/m2/s)

Pdep : Phosphorus deposition from dust (mol/m2/s)

Sidep : Silice deposition from dust (mol/m2/s)

Irondep : Iron deposition from dust (mol/m2/s)

Keywords: Late Miocene, marine primary productivity, aridification, dust, CO2, cooling, oceans, modelling, IPSL-CM5A2, PISCES-v2