Last reminder: AGU2018 session on AMOC structure, variability, and impact on biogeochemistry (PP025)
Apology for any cross-postings. This is a last reminder to contribute to our AGU session on “AMOC structure and changes in the past”. We have two exciting invited contributions
by Davd Thornalley and Jean Lynch-Stieglitz.
We are seeking for other contributions that advance our understanding of the complex spatial structure and temporal variations of past AMOC from both empirical and modeling
studies. In addition, contributions that uncover subsequent AMOC impact on ocean biogeochemistry are highly welcomed as well.
The deadline for abstract submission is next week 1st of August.
PP025: Mechanisms and drivers of Atlantic Meridional Overturning Circulation (AMOC) structure and variability in past climate change and their impact on climate and biogeochemistry
Session description: The AMOC influences surface temperature and precipitation patterns around the globe by regulating the transport of heat, freshwater and carbon. The AMOC – e.g. its overall
strength, the contributions of different water masses and the locations where deep waters are formed and ventilated - have varied significantly in the past, impacting not only North Atlantic climate but also other regions through both atmospheric and oceanic
teleconnections. The mechanisms leading to these changes in AMOC are still poorly constrained. Our ability to predict anthropogenic climate change, therefore, depends critically on our understanding of AMOC structure, variability
and sensitivity to past climate changes. This session aims to bring together paleoproxy records (e.g., d13C, 231Pa/230Th, and εNd, among others), modelling studies, as well as novel methodologies that combine both approaches, to characterize the spatial structure
and temporal variability of the AMOC on all timescales and advance our understanding of its impact on climate and biogeochemistry.
Index Terms 1616 Climate variability 1626 Global climate models 4901 Abrupt/rapid climate change 4912 Biogeochemical cycles, processes, and modeling