| Title: | Daily climate data reveal stronger climate-growth relationships for an extended European tree-ring network |
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| Authors: | ID Jevšenak, Jernej (Author) |
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| Files: |  PDF - Presentation file, download (889,22 KB)
MD5: 3B175B0908641C314D921E30785326E7
 URL - Source URL, visit https://www.sciencedirect.com/science/article/pii/S0277379119304494?via%3Dihub
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| Language: | English |
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| Typology: | 1.01 - Original Scientific Article |
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| Organization: |  SciVie - Slovenian Forestry Institute
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| Abstract: | 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. |
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| Keywords: | tree rings, dendroclimatology, tree-ring network, daily climate data, climate-growth relationships, dendroTools |
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| Publication status: | Published |
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| Publication version: | Author Accepted Manuscript |
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| Year of publishing: | 2019 |
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| Number of pages: | 12 str. |
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| Numbering: | Vol. 221 |
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| PID: | 20.500.12556/DiRROS-9575  |
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| UDC: | 630*56 |
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| ISSN on article: | 1873-457X |
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| DOI: | 10.1016/j.quascirev.2019.105868 |
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| COBISS.SI-ID: | 5453734 |
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| Note: | Nasl. iz nasl. zaslona;
Opis vira z dne 20. 8. 2019; |
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| Publication date in DiRROS: | 21.08.2019 |
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| Views: | 2617 |
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| Downloads: | 1307 |
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