| Title | Reduced interdecadal variability of Atlantic Meridional Overturning Circulation under global warming |
| Authors | Cheng, Jun Liu, Zhengyu Zhang, Shaoqing Liu, Wei Dong, Lina Liu, Peng Li, Hongli |
| Affiliation | Nanjing Univ Informat Sci & Technol, Polar Climate Syst & Global Change Lab, Nanjing 210044, Jiangsu, Peoples R China. Univ Wisconsin, Dept Atmospher & Ocean Sci, Madison, WI 53706 USA. Univ Wisconsin, Nelson Ctr Climat Res, Madison, WI 53706 USA. Peking Univ, Sch Phys, Lab Climate & Ocean Atmosphere Studies, Beijing 100871, Peoples R China. Princeton Univ, Natl Ocean & Atmospher Adm, Geophys Fluid Dynam Lab, Princeton, NJ 08542 USA. Univ Calif San Diego, Scripps Inst Oceanog, La Jolla, CA 92037 USA. Nanjing Univ Informat Sci & Technol, Polar Climate Syst & Global Change Lab, Nanjing 210044, Jiangsu, Peoples R China. Liu, ZY (reprint author), Univ Wisconsin, Dept Atmospher & Ocean Sci, Madison, WI 53706 USA. Liu, ZY (reprint author), Univ Wisconsin, Nelson Ctr Climat Res, Madison, WI 53706 USA. Liu, ZY (reprint author), Peking Univ, Sch Phys, Lab Climate & Ocean Atmosphere Studies, Beijing 100871, Peoples R China. |
| Keywords | Atlantic Meridional Overturning Circulation interdecadal variability global warming oceanic stratification Rossby wave THERMOHALINE CIRCULATION MULTIDECADAL OSCILLATION OCEAN CIRCULATION BASIN MODES CLIMATE DYNAMICS ATMOSPHERE DRIVEN MECHANISM RAINFALL |
| Issue Date | 2016 |
| Publisher | PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA |
| Citation | PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA.2016,113,(12),3175-3178. |
| Abstract | Interdecadal variability of the Atlantic Meridional Overturning Circulation (AMOC-IV) plays an important role in climate variation and has significant societal impacts. Past climate reconstruction indicates that AMOC-IV has likely undergone significant changes. Despite some previous studies, responses of AMOC-IV to global warming remain unclear, in particular regarding its amplitude and time scale. In this study, we analyze the responses of AMOC-IV under various scenarios of future global warming in multiple models and find that AMOC-IV becomes weaker and shorter with enhanced global warming. From the present climate condition to the strongest future warming scenario, on average, the major period of AMOC-IV is shortened from similar to 50 y to similar to 20 y, and the amplitude is reduced by similar to 60%. These reductions in period and amplitude of AMOC-IV are suggested to be associated with increased oceanic stratification under global warming and, in turn, the speedup of oceanic baroclinic Rossby waves. |
| URI | http://hdl.handle.net/20.500.11897/434598 |
| ISSN | 0027-8424 |
| DOI | 10.1073/pnas.1519827113 |
| Indexed | SCI(E) PubMed |
| Appears in Collections: | 物理学院 |
