| Naslov: | Climate change reflected in 40-year isotopic composition trends of precipitation in Slovenia |
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| Avtorji: | ID Gačnik, Jan, Institut "Jožef Stefan" (Avtor)
ID Žagar, Klara, Institut "Jožef Stefan" (Avtor)
ID Hatvani, István Gábor (Avtor)
ID Kern, Zoltán (Avtor)
ID Vreča, Polona, Institut "Jožef Stefan" (Avtor) |
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| Datoteke: |  URL - Izvorni URL, za dostop obiščite https://www.sciencedirect.com/journal/environmental-research
 PDF - Predstavitvena datoteka, prenos (7,50 MB)
MD5: 284464877DF7B84BAB9CD8FA4C097644
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| Jezik: | Angleški jezik |
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| Tipologija: | 1.01 - Izvirni znanstveni članek |
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| Organizacija: |  IJS - Institut Jožef Stefan
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| Povzetek: | Long-term monitoring of stable isotopes in precipitation (δ18O, δ2 H), alongside meteorological data, is key to understanding how large-scale hydroclimate variability influences regional and local climate. This study presents one of the longest records in Central and Southeastern Europe: the multi-decadal (1981–2024) dataset of monthly composite precipitation stable isotope records from Ljubljana, Slovenia. The δ18O, δ2 H, and d-excess values are increasing (+0.02 ‰, +0.18 ‰, and +0.05 ‰ per year, respectively), consistent with regional warming. Seasonal patterns were evident, with elevated d-excess values during autumn. The decomposition of the δ18O, δ2 H and d-excess time series using Hilbert-Huang Transform revealed statistically significant annual oscillations in all variables. These oscillations correlated strongly with the annual oscillation of temperature, but a lag of 2–3 months was identified for d-excess. Lower-frequency (multi-year) oscillations of d-excess were also observed. HYSPLIT back-trajectory analysis confirmed a significant contribution of Mediterranean-sourced air masses to autumn precipitation, but did not explain d-excess oscillations. Similar results were observed also for coastal (Portoroˇz, Slovenia) and continental (Vienna, Austria) stations. The findings imply an accelerating, exponential-like isotopic response to warming that has already propagated into the water cycle, providing isotope evidence that precipitation-surface water-groundwater interactions in investigated region changed in last decade. |
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| Ključne besede: | precipitation stable isotopes, trend analysis, Hilbert-Huang transform, ensemble empirical mode decomposition, HYSPLIT |
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| Status publikacije: | Objavljeno |
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| Verzija publikacije: | Objavljena publikacija |
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| Poslano v recenzijo: | 30.09.2025 |
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| Datum sprejetja članka: | 05.11.2025 |
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| Datum objave: | 05.11.2025 |
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| Založnik: | Elsevier |
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| Leto izida: | 2026 |
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| Št. strani: | str. 1-11 |
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| Številčenje: | Vol. 288, [article no.] 123286 |
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| Izvor: | Nizozemska |
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| PID: | 20.500.12556/DiRROS-24196  |
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| UDK: | 551.58 |
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| ISSN pri članku: | 1096-0953 |
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| COBISS.SI-ID: | 257145603 |
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| Avtorske pravice: | © 2025 The Authors. |
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| Opomba: | Nasl. z nasl. zaslona;
Soavtorji: Klara Žagar, István Gábor Hatvani, Zoltán Kern, Polona Vreča;
Opis vira z dne 13. 11. 2025;
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| Datum objave v DiRROS: | 19.11.2025 |
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| Število ogledov: | 120 |
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| Število prenosov: | 52 |
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| Metapodatki: |    |
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