caa a22 4500 465814565 CHVBK 20180323112124.0 cr unu---uuuuu 170327e19901001xx s 000 0 eng 10.1007/BF00211063 doi (NATIONALLICENCE)springer-10.1007/BF00211063 A note on quaternary climate modelling using Boolean delay equations [Elektronische Daten] [D Wright, T Stocker, L Mysak] The Boolean delay equation model of Ghil et al. for the study of Quaternary ice ages has been re-examined and also extended to include a hydrological feedback mechanism that directly influences the thermohaline circulation. For the basic Ghil et al. model (with the original and with corrected time delays), we show that the maximum duration for a high ice volume state depends continuously but not monotonically on the time delays of the problem. In particular, both short spiky glacials and longer glacials can be obtained from identical parameter values by simply choosing different initial conditions. In the extended model, we find that an additional temperature-hydrology-ocean feedback mechanism tends to generate longer glacials, but in neither case do the average time scales of model variability compare favourably with those of the major Quarternary glacials. Springer-Verlag, 1990 Wright D. Department of Fisheries and Oceans, Bedford Institute of Oceanography, B2Y 4A2, Dartmouth, Nova Scotia, Canada aut Stocker T. Centre for Climate and Global Change Research, Canada aut Mysak L. Centre for Climate and Global Change Research, Canada aut Climate Dynamics Springer-Verlag 4/4(1990-10-01), 263-267 0930-7575 4:4<263 1990 4 382 https://doi.org/10.1007/BF00211063 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF00211063 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Wright D. Department of Fisheries and Oceans, Bedford Institute of Oceanography, B2Y 4A2, Dartmouth, Nova Scotia, Canada aut NATIONALLICENCE 700 1- Stocker T. Centre for Climate and Global Change Research, Canada aut NATIONALLICENCE 700 1- Mysak L. Centre for Climate and Global Change Research, Canada aut NATIONALLICENCE 773 0- Climate Dynamics Springer-Verlag 4/4(1990-10-01), 263-267 0930-7575 4:4<263 1990 4 382 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer