Please use this identifier to cite or link to this item:
http://doi.org/10.25358/openscience-6906
Authors: | Esper, Jan Konter, Oliver Klippel, Lara Krusic, Paul J. Büntgen, Ulf |
Title: | Pre-instrumental summer precipitation variability in northwestern Greece from a high-elevation Pinus heldreichii network |
Online publication date: | 26-Apr-2022 |
Year of first publication: | 2021 |
Language: | english |
Abstract: | The spatiotemporal variability of precipitation is of vital importance to Mediterranean ecology and economy, but pre-instrumental changes are not well understood. Here, we present a millennial-length June–July precipitation reconstruction derived from a network of 22 Pinus heldreichii high-elevation sites in the Pindus Mountains of northwestern Greece. Tree-ring width chronologies from these sites cohere exceptionally well over the past several hundred years (r1467–2015 = 0.64) revealing coherence at inter-annual to centennial timescales across the network. The network mean calibrates significantly against instrumental June–July precipitation over the past 40 years (r1976–2015 = 0.71), even though no high-elevation observational record is available representing the moist conditions at the treeline above 1,900 m a.s.l. For the final reconstruction, the instrumental target data are adjusted to provide realistic estimates of high-elevation summer rainfall back to 729 CE. The reconstruction contains substantially more low-frequency variability than other high-resolution hydroclimate records from the eastern Mediterranean including extended dry periods from 1,350 to 1,379 CE (39 ± 4.5 mm) and 913 to 942 (40 ± 8.4 mm), and moist periods from 862 to 891 (86 ± 11 mm) and 1,522 to 1,551 (80 ± 3.5 mm), relative to the long-term mean of 61 mm. The most recent 30-year period from 1986 to 2015 is characterized by above average June–July precipitation (73 ± 2 mm). Low-frequency changes in summer precipitation are likely related to variations in the position and persistence of storm tracks steering local depressions and causing extensive rainfall (or lack thereof) in high-elevation environments of the Pindus Mountains. |
DDC: | 550 Geowissenschaften 550 Earth sciences |
Institution: | Johannes Gutenberg-Universität Mainz |
Department: | FB 09 Chemie, Pharmazie u. Geowissensch. |
Place: | Mainz |
ROR: | https://ror.org/023b0x485 |
DOI: | http://doi.org/10.25358/openscience-6906 |
Version: | Published version |
Publication type: | Zeitschriftenaufsatz |
License: | CC BY-NC-ND |
Information on rights of use: | https://creativecommons.org/licenses/by-nc-nd/4.0/ |
Journal: | International journal of climatology 41 4 |
Pages or article number: | 2828 2839 |
Publisher: | Wiley |
Publisher place: | Chichester u.a. |
Issue date: | 2021 |
ISSN: | 1097-0088 |
Publisher DOI: | 10.1002/joc.6992 |
Appears in collections: | JGU-Publikationen |
Files in This Item:
File | Description | Size | Format | ||
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preinstrumental_summer_precip-20220426114519872.pdf | 2.55 MB | Adobe PDF | View/Open |