Synoptic drivers of 400years of summer temperature and precipitation variability on Mt. Olympus, Greece

Verfasser / Beitragende:
[Stefan Klesse, Malin Ziehmer, Georgios Rousakis, Valerie Trouet, David Frank]
Ort, Verlag, Jahr:
2015
Enthalten in:
Climate Dynamics, 45/3-4(2015-08-01), 807-824
Format:
Artikel (online)
ID: 605471282
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024 7 0 |a 10.1007/s00382-014-2313-3  |2 doi 
035 |a (NATIONALLICENCE)springer-10.1007/s00382-014-2313-3 
245 0 0 |a Synoptic drivers of 400years of summer temperature and precipitation variability on Mt. Olympus, Greece  |h [Elektronische Daten]  |c [Stefan Klesse, Malin Ziehmer, Georgios Rousakis, Valerie Trouet, David Frank] 
520 3 |a The Mediterranean region has been identified as a global warming hotspot, where future climate impacts are expected to have significant consequences on societal and ecosystem well-being. To put ongoing trends of summer climate into the context of past natural variability, we reconstructed climate from maximum latewood density (MXD) measurements of Pinus heldreichii (1521-2010) and latewood width (LWW) of Pinus nigra (1617-2010) on Mt. Olympus, Greece. Previous research in the northeastern Mediterranean has primarily focused on inter-annual variability, omitting any low-frequency trends. The present study utilizes methods capable of retaining climatically driven long-term behavior of tree growth. The LWW chronology corresponds closely to early summer moisture variability (May-July, r=0.65, p<0.001, 1950-2010), whereas the MXD-chronology relates mainly to late summer warmth (July-September, r=0.64, p<0.001; 1899-2010). The chronologies show opposing patterns of decadal variability over the twentieth century (r=−0.68, p<0.001) and confirm the importance of the summer North Atlantic Oscillation (sNAO) for summer climate in the northeastern Mediterranean, with positive sNAO phases inducing cold anomalies and enhanced cloudiness and precipitation. The combined reconstructions document the late twentieth—early twenty-first century warming and drying trend, but indicate generally drier early summer and cooler late summer conditions in the period ~1700-1900 CE. Our findings suggest a potential decoupling between twentieth century atmospheric circulation patterns and pre-industrial climate variability. Furthermore, the range of natural climate variability stretches beyond summer moisture availability observed in recent decades and thus lends credibility to the significant drying trends projected for this region in current Earth System Model simulations. 
540 |a Springer-Verlag Berlin Heidelberg, 2014 
690 7 |a Tree ring  |2 nationallicence 
690 7 |a Summer North Atlantic Oscillation  |2 nationallicence 
690 7 |a Northeastern Mediterranean  |2 nationallicence 
690 7 |a Maximum latewood density  |2 nationallicence 
690 7 |a Summer climate reconstruction  |2 nationallicence 
690 7 |a Latewood width  |2 nationallicence 
700 1 |a Klesse  |D Stefan  |u Swiss Federal Research Institute WSL, 8903, Birmensdorf, Switzerland  |4 aut 
700 1 |a Ziehmer  |D Malin  |u Physics Institute, University of Bern, 3012, Bern, Switzerland  |4 aut 
700 1 |a Rousakis  |D Georgios  |u Litohoro Forest Service, 602000, Litohoro, Greece  |4 aut 
700 1 |a Trouet  |D Valerie  |u Laboratory of Tree-Ring Research, University of Arizona, 85721, Tucson, AZ, USA  |4 aut 
700 1 |a Frank  |D David  |u Swiss Federal Research Institute WSL, 8903, Birmensdorf, Switzerland  |4 aut 
773 0 |t Climate Dynamics  |d Springer Berlin Heidelberg  |g 45/3-4(2015-08-01), 807-824  |x 0930-7575  |q 45:3-4<807  |1 2015  |2 45  |o 382 
856 4 0 |u https://doi.org/10.1007/s00382-014-2313-3  |q text/html  |z Onlinezugriff via DOI 
898 |a BK010053  |b XK010053  |c XK010000 
900 7 |a Metadata rights reserved  |b Springer special CC-BY-NC licence  |2 nationallicence 
908 |D 1  |a research-article  |2 jats 
949 |B NATIONALLICENCE  |F NATIONALLICENCE  |b NL-springer 
950 |B NATIONALLICENCE  |P 856  |E 40  |u https://doi.org/10.1007/s00382-014-2313-3  |q text/html  |z Onlinezugriff via DOI 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Klesse  |D Stefan  |u Swiss Federal Research Institute WSL, 8903, Birmensdorf, Switzerland  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Ziehmer  |D Malin  |u Physics Institute, University of Bern, 3012, Bern, Switzerland  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Rousakis  |D Georgios  |u Litohoro Forest Service, 602000, Litohoro, Greece  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Trouet  |D Valerie  |u Laboratory of Tree-Ring Research, University of Arizona, 85721, Tucson, AZ, USA  |4 aut 
950 |B NATIONALLICENCE  |P 700  |E 1-  |a Frank  |D David  |u Swiss Federal Research Institute WSL, 8903, Birmensdorf, Switzerland  |4 aut 
950 |B NATIONALLICENCE  |P 773  |E 0-  |t Climate Dynamics  |d Springer Berlin Heidelberg  |g 45/3-4(2015-08-01), 807-824  |x 0930-7575  |q 45:3-4<807  |1 2015  |2 45  |o 382