Interglacial and glacial variability from the last 800 ka in marine, ice and terrestrial archives

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doi: 10.5194/cp-7-361-2011
Author(s): Lang, Nicola; Wolff, Eric W.
Author Affiliation(s): Primary:
British Antarctic Survey, Cambridge, United Kingdom
Volume Title: Climate of the Past
Source: Climate of the Past, 7(2), p.361-380. Publisher: Copernicus, Katlenburg-Lindau, International. ISSN: 1814-9324
Note: In English. Includes supplement:; published in Climate of the Past Discussion: 15 October 2010,; accessed in Nov., 2011. 66 refs.; illus., incl. 5 plates
Summary: We have compiled 37 ice, marine and terrestrial palaeoclimate records covering the last 800 000 years in order to assess the pattern of glacial and interglacial strength, and termination amplitude. Records were selected based on their length, completeness and resolution, and their age models were updated, where required, by alignment to the LR04 benthic δ18O stack. The resulting compilation allows comparison of individual glacial to interglacial transitions with confidence, but the level of synchronisation is inadequate for discussion of temporal phasing. The comparison of interglacials and glacials concentrates on the peaks immediately before and after terminations; particularly strong and weak glacials and interglacials have been identified. This confirms that strong interglacials are confined to the last 450 ka, and that this is a globally robust pattern; however weak interglacials (i.e. marine isotope stage 7) can still occur in this later period. Strong glacial periods are also concentrated in the recent half of the records, although marine isotope stage 16 is strong in many δ18O records. Strong interglacials, particularly in the marine isotopic records, tend to follow strong glacials, suggesting that we should not expect interglacial strength to be strongly influenced by the instantaneous astronomical forcing. Many interglacials have a complex structure, with multiple peaks and troughs whose origin needs to be understood. However this compilation emphasises the under-representation of terrestrial environments and highlights the need for long palaeoclimate records from these areas. The main result of this work is the compiled datasets and maps of interglacial strength which provide a target for modelling studies and for conceptual understanding.
Year of Publication: 2011
Research Program: DSDP Deep Sea Drilling Project
IPOD International Phase of Ocean Drilling
ODP Ocean Drilling Program
Key Words: 24 Surficial Geology, Quaternary Geology; Algae; Aliphatic hydrocarbons; Alkanes; Antarctica; Arabian Sea; Atlantic Ocean; Benthic environment; Carbon dioxide; Ceara Rise; Cenozoic; Chatham Rise; Clastic sediments; Coccolithophoraceae; Cores; DSDP Site 607; Deep Sea Drilling Project; Depositional environment; Dome C; EPICA; East Pacific; Equatorial Atlantic; Equatorial Pacific; Foraminifera; Glacial environment; Gorda Rise; Holocene; Hydrocarbons; IPOD; Ice cores; Indian Ocean; Interglacial environment; Invertebrata; Isotope ratios; Isotopes; Leg 111; Leg 117; Leg 130; Leg 138; Leg 154; Leg 162; Leg 167; Leg 177; Leg 181; Leg 184; Leg 94; Loess; Lower Holocene; Methane; Microfossils; Mid-Atlantic Ridge; North Atlantic; North Pacific; Northeast Atlantic; Northeast Pacific; Northwest Pacific; O-18/O-16; ODP Site 1020; ODP Site 1090; ODP Site 1123; ODP Site 1143; ODP Site 1146; ODP Site 677; ODP Site 722; ODP Site 806; ODP Site 846; ODP Site 925; ODP Site 980; ODP Site 982; ODP Site 983; Ocean Drilling Program; Ontong Java Plateau; Organic compounds; Oxygen; Pacific Ocean; Paleoclimatology; Paleosols; Paleotemperature; Periglacial environment; Plantae; Protista; Quaternary; Rockall Bank; Sea water; Sediments; South Atlantic; South China Sea; South Pacific; Southeast Pacific; Stable isotopes; Temperature; West Pacific; Wilkes Land
Coordinates: S414710 S414710 W1712956 W1712956
N163718 N163719 E0594746 E0594745
N001906 N001907 E1592142 E1592140
Record ID: 2012055525
Copyright Information: GeoRef, Copyright 2020 American Geosciences Institute. Reference includes data from Copernicus Gesellschaft, Katlenburg-Lindau, Germany