EGU2020-17853
https://doi.org/10.5194/egusphere-egu2020-17853
EGU General Assembly 2020
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.

Climate change in the tropical Atlantic

Noel Keenlyside1,2, Lander Crespo1, Shunya Koseki1, Lea Svendsen1, and Ingo Richter3
Noel Keenlyside et al.
  • 1University of Bergen, Geophysical Institute, Bergen, Norway (noel.keenlyside@uib.no)
  • 2Nansen Environmental and Remote Sensing Center, Bergen , Norway
  • 3JAMSTEC, Japan

The tropical Atlantic SST have warmed by about 1 degree over the historical period, with greatest warming in the east, along the African coast and in the Gulf of Guinea. Experiments performed from the Coupled Model Intercomparison Projects (CMIP) indicate that models fail to reproduce this warming pattern, instead showing a rather uniform warming. Future projections with these models also tend to show rather uniform warming. In constrast. results from anomaly coupled models indicate that model biases impact the ability of climate models to simulate warming patterns in the tropical Atlantic. Here we investigate the role of model biases on climate change in the tropical Atlantic in the CMIP experiments. In addition, we have analyzed impacts of global warming on tropical Atlantic climate variability, and we assess the sensitive of the results are to model biases.

How to cite: Keenlyside, N., Crespo, L., Koseki, S., Svendsen, L., and Richter, I.: Climate change in the tropical Atlantic, EGU General Assembly 2020, Online, 4–8 May 2020, EGU2020-17853, https://doi.org/10.5194/egusphere-egu2020-17853, 2020