Eccel et al. (2026) Climate Variability for a 150‐Year (1862–2011) Meteo‐Hydrological Series in the Italian Alps at Different Time Scales

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Identification

• Journal: International Journal of Climatology
• Year: 2026
• Date: 2026-11-03
• Authors: Emanuele Eccel, Roberto Ranzi
• DOI: 10.1002/joc.70657

Research Groups

Not explicitly stated in the abstract.

Short Summary

This study analyzed 150 years (1862–2011) of climate variability and water balance components in the Adige River basin, confirming a significant temperature increase (over 2 °C in the last 50 years) and increasing evapotranspiration and water deficit, while precipitation showed no significant long-term change and external forcings had a weak influence.

Objective

• To analyze climate variability, including water balance components, over one and a half centuries of meteorological observations (1862–2011) for the Adige River basin in the Italian Alps.

Study Configuration

• Spatial Scale: Adige River basin, 9763 km².
• Temporal Scale: 1862–2011 (150 years).

Methodology and Data

• Models used: A water balance model (specific name not provided).
• Data sources: Meteorological observations (monthly series of precipitation, temperature, evapotranspiration, and water deficit) aggregated for the entire basin.

Main Results

• Temperature increase was confirmed, being stronger in the more recent period (over 2 °C in the last 50 years), with seasonal variations.
• Precipitation displayed only some seasonal patterns that did not change significantly over the observation period, showing a prevailing trend of decreasing interannual variability and persistence.
• Evapotranspiration and water deficit long-term trends are consistent with temperature, significantly increasing in the last decades (0.33 mm per year and 0.36 mm per year, respectively).
• Statistical links with astronomical cycles (sunspots), atmospheric circulation (North Atlantic Oscillation), and sea surface temperature (Atlantic Multidecadal Oscillation) suggest a weak influence of these drivers on the regional climate.

Contributions

• Fills a knowledge gap regarding long-term climatology in an important region of the Italian Alps.
• Highlights features of the region's hydro-climatological regimes by quantifying the effects of atmospheric and solar teleconnections at the catchment scale, also in relation to the climate-change signal.

Funding

Not explicitly stated in the abstract.

Citation

@article{Eccel2026Climate,
  author = {Eccel, Emanuele and Ranzi, Roberto},
  title = {Climate Variability for a 150‐Year (1862–2011) Meteo‐Hydrological Series in the Italian Alps at Different Time Scales},
  journal = {International Journal of Climatology},
  year = {2026},
  doi = {10.1002/joc.70657},
  url = {https://doi.org/10.1002/joc.70657}
}