Digital repository of Slovenian research organisations
Daily climate data reveal stronger climate-growth relationships for an extended European tree-ring network
1.01 - Original Scientific Article
SciVie - Slovenian Forestry Institute
An extended European tree-ring network was compiled from various sources of tree-ring data from Europe, northern Africa and western Asia. A total of 1860 tree-ring chronologies were used to compare correlation coefficients calculated with aggregated day-wise and month-wise mean temperature, sums of precipitation and standardised precipitation-evapotranspiration index (SPEI). For the daily approach, climate data were aggregated over periods ranging from 21 to 365 days. Absolute correlations calculated with day-wise aggregated climate data were on average higher by 0.060 (temperature data), 0.076 (precipitation data) and 0.075 (SPEI data). Bootstrapped correlations are computationally expensive and were therefore calculated on a 69.4% subset of the data. Bootstrapped correlations indicated statistically significant differences between the daily and monthly approach in approximately 1% of examples. A comparison of time windows used for calculations of correlations revealed slightly later onset and earlier ending day of the year for the daily approach, while the largest differences between the two approaches arise from window lengths: Correlations calculated with day-wise aggregated climate data were calculated using fewer days than the monthly approach. Differences in the onset and ending dates of periods for the daily and monthly approaches were greater for precipitation and SPEI data than for temperature data.
daily climate data
Year of publishing:
ISSN on article:
Nasl. iz nasl. zaslona; Opis vira z dne 20. 8. 2019;
URL - Presentation file, visit
PDF - Presentation file. This file will be accessible after 13.08.2023.
Quaternary science reviews
Cite this work
Hover the mouse pointer over a document title to show the abstract or click on the title to get all document metadata.
Document is financed by a project
ARRS - Agencija za raziskovalno dejavnost Republike Slovenije (ARRS)
Mortaliteta v nižinskih hrastovih sestojih Panonske nižine - posledica zniževanja podtalnice ali klimatskih spremembe?
CC BY-NC-ND 3.0, Creative Commons Attribution Non-Commercial No Derivatives 3.0
You are free to reproduce and redistribute the material in any medium or format. You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. You may not use the material for commercial purposes. If you remix, transform, or build upon the material, you may not distribute the modified material. You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.
Licensing start date: