Antarctic temperature and global sea level closely coupled over the past five glacial cycles

Abstract

While looking at the Journal Article:'Antarctic temperature and global sea level closely coupled over the past five glacial cycles' in the Journal: Nature Geoscience I have found we need a statement from your Author Andrew Roberts, as according to the byline it seems they were at another location. An reply email to me will be sufficient.Could you please confirm if the author is willing to sign a statement of affiliation to the ANU so it can be added to this record in the HERDC data collection.If this research was not done with the ANU then we will move this record to an 'Ext C1' and it may be considered for the ERA collection in future years.

Differences between the last two glacial maxima and implications for ice-sheet, δ18O, and sea-level reconstructions

“…2b). However, sparse LGM data from bulk carbonate are supported by other Red Sea records that indicate a 5e5.5‰ change in foraminiferal d 18 O between the LGM and present (Arz et al, 2003(Arz et al, , 2007, compared with 4‰ between the PGM and present (Rohling et al, 2009). Moreover, the aplanktonic LGM Red Sea conditions offer strong independent evidence that LGM sea level was lower than in the PGM.…”

“…Ice-sheet nucleation may, in addition, depend on chaotic aspects of the weather/climate system; for example, successive winters with heavy snowfall may e almost randomly e cause some locations to receive an initial snow cover with enough volume and albedo feedback to ensure its survival and subsequent growth potential (e.g., Oglesby, 1990). Finally, modelling studies (e.g., Abe-Ouchi et al, 2013) indicate that glacial culminations like the PGM and LGM reflect the outcome of temporal developments in forcings and feedbacks through the preceding glacial cycle that include insolation (e.g., Laskar et al, 2004;Colleoni et al, 2011), CO 2 and CH 4 concentrations (Monnin et al, 2001;Loulergue et al, 2008; Waelbroeck et al, 2002;Rohling et al, 2009Rohling et al, , 2014Elderfield et al, 2012;Grant et al, 2014), and also in state variables such as surface and deep-sea temperature (e.g., Stenni et al, 2010;Elderfield et al, 2012;Parrenin et al, 2013;Rohling et al, 2012Rohling et al, , 2014Martínez-Botí et al, 2015;Snyder, 2016a,b). Climate simulations by Colleoni et al (2014) suggest that orbital and greenhouse-gas changes for the penultimate glacial cycle were more favourable for glacial inception over Eurasia than over North America, relative to the last glacial cycle.…”

Late Quaternary sea-level history and the antiquity of mammoths (Mammuthus exilisandMammuthus columbi), Channel Islands National Park, California, USA

“…Azzaroli (1981) challenged this proposal, asserting that sea levels prior to the last glacial maximum (LGM) were no lower than about −30 m to − 50 m, relative to present. It is now known, however, that other, pre-LGM glacial periods were characterized by sea levels well below −30 to −50 m, relative to present, during at least the two glacial periods prior to the LGM (e.g., Lea et al, 2002;Rohling et al, 2009Rohling et al, , 2010. Thus, Johnson's (1978) hypothesis of pre-LGM mammoth immigrations is still a viable one, based on current understanding of sea-level history.…”

Late Pleistocene gray whales (Eschrichtius robustus) offshore Georgia, U.S.A., and the antiquity of gray whale migration in the North Atlantic Ocean

“…With Pleistocene eustatic sea-level changes, the physical locality of JY Reef has experienced multiple submergence and subaerial exposure over the past 1 Ma (Miller et al, 2005;Rohling et al, 2009;Thomas et al, 2009), and these changes also altered the depositional setting at JY Reef. The two gray whale specimens reported here, radiometrically aged to 41 ka and 48 ka, provide two separate indications that the general area of JY Reef was submerged at this time.…”

“…The two gray whale specimens reported here, radiometrically aged to 41 ka and 48 ka, provide two separate indications that the general area of JY Reef was submerged at this time. The strong differences in Plio-Pleistocene climatic eustatic sea-level change models (Stocker and Marchal, 2000;Müller et al, 2008;Rohling et al, 2009) show a wide range of possible sea-level ranges during the late Pleistocene. While some models show sea-level at JY Reef to be very similar to that of today (Chabreck, 1988), others show JY Reef to be a dry land (Dodge et al, 1983;Cutler et al, 2003).…”