Near-real-time monitoring of global ocean carbon sink for 2022-2023

We present a near-real-time, monthly grid-based dataset of global ocean CO2 concentrations and ocean-atmosphere CO2 flux from January 2022 to July 2023, which called Carbon Monitor Ocean (CMO-NRT). The data have been derived by updating the estimates from 10 Global Ocean Biogeochemical Models and 8 data products in the Global Carbon Budget 2022 to a near-real-time framework. This is achieved by employing Convolutional Neural Networks and semi-supervised learning methods to learn the non-linear relationship between the estimates from models or products and the observed predictors.