| 2004 Ocean Sciences Meeting Search Results |
Cite abstracts as Eos Trans. AGU, 84(52), Ocean Sci. Meet. Suppl., Abstract xxxxx-xx, 2003 |
t-so-abrupt Changes AU: * Mysak, L A EM: lawrence.mysak@mcgill.ca AF: McGill University, Dept. of Atmospheric and Oceanic Sciences 805 Sherbrooke St. W., Montreal, QC H3A 2K6 Canada AB: During the past decade, a new class of geosphere-biosphere models of the Earth system has been developed for investigating long-term as well as abrupt climate changes, both past and future. These models, known as Earth system Models of Intermediate Complexity or EMICs (Claussen et al., 2002, Climate Dynamics), have been used extensively, for example, in scoping out future climate change scenarios, estimating the effects on climate of deforestation and afforestation, and exploring the mechanisms for decadal-to millennial scale variability. This 2004 Sverdrup Lecture will focus on the role of the ocean thermohaline circulation (THC) in several of these phenomena. Results will be shown from a number of EMIC modelling groups, including that at McGill. In particular, simulations will be presented of the THC collapse during very cold climates, millennial-scale Dansgaard-Oeschger cycles, the last glacial inception, and the initiation of the next ice age. DE: 3309 Climatology (1620) DE: 3344 Paleoclimatology DE: 4267 Paleoceanography DE: 4532 General circulation SC: OS MN: 2004 Ocean Sciences Meeting |