Changes in oceanic radiocarbon and CFCs since the 1990s
Description
This directory contains the MITgcm ECCOv4-TM simulation output used in "Changes in oceanic radiocarbon and CFCs since the 1990s" (Lester et al., 2023) submitted to the Journal of Geophysical Research: Oceans.
Ocean tracer simulations were created using transports matrices (TMs) derived from state estimates from the Estimating the Climate and Circulation of the Ocean version 4 (ECCOv4) based on a global configuration of the MITgcm model (MITgcm ECCOv4-TM). The monthly-mean TMs and the transport matrix method was used to simulate CFC-11, CFC-12 and abiotic DIC and 14C in DIC. CFC concentrations were converted to partial pressures (pCFC) by dividing by their solubility functions.
Output is provided as Matlab .mat files. Files are named as MITgcm_ECCOv4TM_XXX.mat, where XXX is one of D14C, DIC14, DIC, pCFC11 and pCFC12 and contains annual mean fields for:
- Delta-14C [per mil],
- DIC14 concentration [mol/m3],
- DIC concentration [mol/m3],
- pCFC-11 concentration [ppt] and
- pCFC-12 concentration [ppt] respectively.
For full details about the simulations and results see Lester et al. (2023).
Files
Files
(15.8 GB)
Additional details
Funding
- UK Research and Innovation
- NSFGEO-NERC: Understanding the Drivers of Inert Gas Saturation to Better Constrain Ice Core-Derived Records of Past Mean Ocean Temperature NE/W007258/1
- UK Research and Innovation
- Transient tracer-based Investigation of Circulation and Thermal Ocean Change (TICTOC) NE/P019218/1
- UK Research and Innovation
- Transient tracer-based Investigation of Circulation and Thermal Ocean Change (TICTOC) NE/P019242/1
- UK Research and Innovation
- Science and Solutions for a Changing Planet NE/L002515/1