Seno Otway, Inútil Bay, and Beagle Channel. On the Straits of Magellan, ice reached as far as Segunda Angostura. Oceans Abyssal Pacific overturning was weaker during the LGM than in the present day, although it was temporarily stronger during some intervals of ice sheet retreat. Evidence suggests that the Peruvian Oxygen Minimum Zone in the eastern Pacific was weaker than it is in the present day, likely as a result of increased oxygen concentrations in seawater permitted by cooler ocean water temperatures, though it was similar in spatial extent. The outflow of North Pacific Intermediate Water through the Tasman Sea was stronger during the LGM. Evidence from sediment cores in the Scotia Sea suggests the Antarctic Circumpolar Current was weaker during the last glaciation than during the Holocene. See also Bølling oscillation Allerød oscillation Notes Further reading Developments in Quaternary Science Series External links (32 digital maps at 1:7 000 000 scale with accompanying digital chronological database and one poster (two sheets) with full map series.) Paleoclimate Modelling Intercomparison Project (PMIP) PMIP Web Site and 'Publications : Last Glacial Maximum. Paleoclimate Modelling Intercomparison Project Phase II (PMIP2) PMIP2 Home page and PMIP 2 Publications. Ice ages Glaciology