A high-resolution diatom record of late-Quaternary sea-surface temperatures and oceanographic conditions from the eastern Norwegian Sea

Birks, Christopher J. A.; Koç, N.

doi:10.1080/030094802320942545

Cited by 143 publications

(87 citation statements)

References 71 publications

(149 reference statements)

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“…9 reveals both differences and similarities. A major difference is Birks & Koc (2002). C. The present article.…”

Section: Correlationsmentioning

confidence: 74%

“…Thus, they may be compared to 'true' sea surface temperature proxy records such as the diatom based SST record from the Vøring Plateau (Fig. 9B) (Birks & Koc 2002) and intermediate depth proxies represented by planktic foraminifera 18 O from the Western Svalbard margin and St. Anna Trough, eastern Barents Sea (Hald et al 1999) (Fig. 9D, F).…”

Section: Correlationsmentioning

confidence: 99%

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Holocene climate in the subarctic fjord Malangen, northern Norway: a multi‐proxy study

Hald

Husum

Vorren

et al. 2003

Boreas

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A Holocene sedimentary record from the deep‐silled Malangen fjord in northern Norway reveals regional changes in sedimentary environment and climate. Down‐core analysis of two sediment cores includes multi‐core sensor logging, grain size, x‐radiography, foraminifera, oxygen isotopes, dinoflagellates, pollen, trace elements and radiocarbon datings. The cores are located just proximal to the submarine Younger Dryas moraine complex, and reveal the deglaciation after Younger Dryas and the postglacial evolution. Five sedimentary units have been identified. The oldest units, V and IV, bracket the Younger Dryas glacial readvance in the fjord between 12700 cal. years BP and 11 800 cal. years BP. This is followed by deposition of glaciomarine sediments (units IV and III) starting around 12100 cal. years BP. Glaciomarine sedimentation ceased in the fjord c. 10300 cal. years BP and was replaced by open marine sedimentation (units II and I). A rapid stepwise warming occurred during the Preboreal. Onset of surface water warming lagged bottom water warming by several hundred years. The δ18 O record indicates a significant, gradual bottom water cooling (c. 4°C) between 8000 and 2000 cal. years BP, a trend also supported by the other proxy data. Other records in the region, as well as GCM simulations, also support this long‐term climatic evolution. Superimposed on this cooling were brief warmings around 6000 cal. years BP and 2000 cal. years BP. The long‐term change may be driven by orbitally forced reduction in insolation, whereas the short‐term changes may be linked to for example solar forcing, meltwater and NAO changes all causing regional changes in the North Atlantic heat transport.

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“…9 reveals both differences and similarities. A major difference is Birks & Koc (2002). C. The present article.…”

Section: Correlationsmentioning

confidence: 74%

Section: Correlationsmentioning

confidence: 99%

Holocene climate in the subarctic fjord Malangen, northern Norway: a multi‐proxy study

Hald

Husum

Vorren

et al. 2003

Boreas

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“…11), total arboreal percentages actually increasing somewhat throughout the region (Peñalba 1994;Muñoz Sobrino et al 2005). This suggests that the expansion of Fagus during this stage primarily consisted in the tree colonization of higher sites as the tree line shifted upwards, and was therefore probably driven by the general climatic warming resulting from warmer seasurface temperatures in a range of latitudes in the western North Atlantic (deMenocal et al 2000;Birks and Koç 2002). Equally, in southern Central Europe beech appears to have begun to expand in response to climatic change before the onset of large-scale Neolithic human activities (Tinner and Lotter 2006).…”

Section: Discussionmentioning

confidence: 95%

Climatic and human effects on the post-glacial dynamics of Fagus sylvatica L. in NW Iberia

et al. 2008

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“…In our opinion, this does not contradict the fact that mires in the coastal Cantabrian mountains (in uplands or on oceanic slopes) became drier (as suggested by Betula or Corylus invasions). Changes in the mesoclimate of the coastal mountains might have been driven by increasing sea-surface temperatures (see Birks & Koç 2002) on land raising both the temperatures and the altitude of the dew point. The higher temperatures and the drier soils would cause the upward movement of the tree line in the Cantabrian coastal mountains, but simultaneously the oceanic fronts may more frequently cross the coastal barrier of mountains, making the inland territories moister (Fig.…”

Section: Resultsmentioning

confidence: 99%

“…In both regions the d 18 O curves suggest two periods of higher temperature separated by more variable but generally lower temperatures. Also sea surface temperatures reconstructed for the North Atlantic tally with Cantabrian peat bog development (Birks & Koç 2002).…”

Section: Resultsmentioning

confidence: 99%

Palynological data on major Holocene climatic events in NW Iberia

Sobrino

Rego

Gómez-Orellana

et al. 2005

Boreas

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Three NW Iberia Cantabrian Mountain pollen records are presented. They reflect the main Holocene climatic shifts in the North Atlantic region as recorded in the isotopic data from Greenland ice, Irish speleothems and reconstructed sea surface temperatures. Two brief forest regression episodes reconstructed from pollen may be synchronous with GH‐11.2 and GH‐8.2 events. At mid‐altitude, two woodland expansion phases (7000–6000 14C yr BP and 4000–2500 14C yr BP) are separated by a phase of heaths and peat deposits. Major woodland declines occurred during the Galician‐Roman Period (which includes the Bronze Age, the Iron Age and the Roman occupation) and from the end of the Medieval Period. The pollen data, backed up by archaeological and historical sources, suggest climatic impact of the Iron Age Cold Period, but are indecisive concerning the Little Ice Age. However, the pollen records do not support any significant ‘Neoglacial’ period (4000–3000 14C yr BP) influence on NW Iberia.

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A high-resolution diatom record of late-Quaternary sea-surface temperatures and oceanographic conditions from the eastern Norwegian Sea

Cited by 143 publications

References 71 publications

Holocene climate in the subarctic fjord Malangen, northern Norway: a multi‐proxy study

Holocene climate in the subarctic fjord Malangen, northern Norway: a multi‐proxy study

Climatic and human effects on the post-glacial dynamics of Fagus sylvatica L. in NW Iberia

Palynological data on major Holocene climatic events in NW Iberia

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