caa a22 4500 605472416 CHVBK 20210128100338.0 cr unu---uuuuu 210128e20151201xx s 000 0 eng 10.1007/s00382-015-2559-4 doi (NATIONALLICENCE)springer-10.1007/s00382-015-2559-4 Oxygen stable isotope ratios from British oak tree-rings provide a strong and consistent record of past changes in summer rainfall [Elektronische Daten] [Giles Young, Neil Loader, Danny McCarroll, Roderick Bale, Joanne Demmler, Daniel Miles, Nigel Nayling, Katja Rinne, Iain Robertson, Camilla Watts, Matthew Whitney] United Kingdom (UK) summers dominated by anti-cyclonic circulation patterns are characterised by clear skies, warm temperatures, low precipitation totals, low air humidity and more enriched oxygen isotope ratios (δ18O) in precipitation. Such conditions usually result in relatively more positive (enriched) oxygen isotope ratios in tree leaf sugars and ultimately in the tree-ring cellulose formed in that year, the converse being true in cooler, wet summers dominated by westerly air flow and cyclonic conditions. There should therefore be a strong link between tree-ring δ18O and the amount of summer precipitation. Stable oxygen isotope ratios from the latewood cellulose of 40 oak trees sampled at eight locations across Great Britain produce a mean δ18O chronology that correlates strongly and significantly with summer indices of total shear vorticity, surface air pressure, and the amount of summer precipitation across the England and Wales region of the United Kingdom. The isotope-based rainfall signal is stronger and much more stable over time than reconstructions based upon oak ring widths. Using recently developed methods that are precise, efficient and highly cost-effective it is possible to measure both carbon (δ13C) and oxygen (δ18O) isotope ratios simultaneously from the same tree-ring cellulose. In our study region, these two measurements from multiple trees can be used to reconstruct summer temperature (δ13C) and summer precipitation (δ18O) with sufficient independence to allow the evolution of these climate parameters to be reconstructed with high levels of confidence. The existence of long, well-replicated oak tree-ring chronologies across the British Isles mean that it should now be possible to reconstruct both summer temperature and precipitation over many centuries and potentially millennia. Springer-Verlag Berlin Heidelberg, 2015 Precipitation nationallicence Temperature nationallicence UK nationallicence Stable isotopes nationallicence Tree-rings nationallicence Young Giles Department of Geography, College of Science, Swansea University, Singleton Park, SA2 8PP, Swansea, UK aut Loader Neil Department of Geography, College of Science, Swansea University, Singleton Park, SA2 8PP, Swansea, UK aut McCarroll Danny Department of Geography, College of Science, Swansea University, Singleton Park, SA2 8PP, Swansea, UK aut Bale Roderick Department of Archaeology, History and Anthropology, University of Wales Trinity Saint David, SA48 7ED, Lampeter, Ceredigion, UK aut Demmler Joanne Department of Geography, College of Science, Swansea University, Singleton Park, SA2 8PP, Swansea, UK aut Miles Daniel Research Laboratory for Archaeology and the History of Art, Oxford University, OX1 3YQ, Oxford, UK aut Nayling Nigel Department of Archaeology, History and Anthropology, University of Wales Trinity Saint David, SA48 7ED, Lampeter, Ceredigion, UK aut Rinne Katja Paul Scherrer Institute, 5232, Villigen, Switzerland aut Robertson Iain Department of Geography, College of Science, Swansea University, Singleton Park, SA2 8PP, Swansea, UK aut Watts Camilla Department of Geography, College of Science, Swansea University, Singleton Park, SA2 8PP, Swansea, UK aut Whitney Matthew Department of Geography, College of Science, Swansea University, Singleton Park, SA2 8PP, Swansea, UK aut Climate Dynamics Springer Berlin Heidelberg 45/11-12(2015-12-01), 3609-3622 0930-7575 45:11-12<3609 2015 45 382 https://doi.org/10.1007/s00382-015-2559-4 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s00382-015-2559-4 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Young Giles Department of Geography, College of Science, Swansea University, Singleton Park, SA2 8PP, Swansea, UK aut NATIONALLICENCE 700 1- Loader Neil Department of Geography, College of Science, Swansea University, Singleton Park, SA2 8PP, Swansea, UK aut NATIONALLICENCE 700 1- McCarroll Danny Department of Geography, College of Science, Swansea University, Singleton Park, SA2 8PP, Swansea, UK aut NATIONALLICENCE 700 1- Bale Roderick Department of Archaeology, History and Anthropology, University of Wales Trinity Saint David, SA48 7ED, Lampeter, Ceredigion, UK aut NATIONALLICENCE 700 1- Demmler Joanne Department of Geography, College of Science, Swansea University, Singleton Park, SA2 8PP, Swansea, UK aut NATIONALLICENCE 700 1- Miles Daniel Research Laboratory for Archaeology and the History of Art, Oxford University, OX1 3YQ, Oxford, UK aut NATIONALLICENCE 700 1- Nayling Nigel Department of Archaeology, History and Anthropology, University of Wales Trinity Saint David, SA48 7ED, Lampeter, Ceredigion, UK aut NATIONALLICENCE 700 1- Rinne Katja Paul Scherrer Institute, 5232, Villigen, Switzerland aut NATIONALLICENCE 700 1- Robertson Iain Department of Geography, College of Science, Swansea University, Singleton Park, SA2 8PP, Swansea, UK aut NATIONALLICENCE 700 1- Watts Camilla Department of Geography, College of Science, Swansea University, Singleton Park, SA2 8PP, Swansea, UK aut NATIONALLICENCE 700 1- Whitney Matthew Department of Geography, College of Science, Swansea University, Singleton Park, SA2 8PP, Swansea, UK aut NATIONALLICENCE 773 0- Climate Dynamics Springer Berlin Heidelberg 45/11-12(2015-12-01), 3609-3622 0930-7575 45:11-12<3609 2015 45 382