Evaluation of Southern Ocean cloud in the HadGEM3 general circulation model and MERRA-2 reanalysis using ship-based observations

• Main Authors: Kuma, Peter, McDonald, Adrian, Morgenstern, Olaf, Parsons, Simon, Hartery, Sean, Alexander, Simon P., Cassano, John J., Garrett, Sally, Harvey, Mike J., Plank, Graeme, Williams, Jonny
• Format: Conference Object
• Language: English
• Published: 2019
• Subjects: Southern Ocean; Merra
• Online Access: https://zenodo.org/record/3764275; https://doi.org/10.5281/zenodo.3764275

Southern Ocean shortwave radiation biases of up to 40 Wm-2 in summer are common in general circulation models, with misrepresentation of cloud identified as the major cause. We evaluate the atmospheric component GA7.0 and GA7.1 of the HadGEM3 general circulation model and the MERRA-2 reanalysis, and...