Ojrzyńska et al. (2026) Trends and Circulation Conditions of Precipitation Over the Sudeten Mountains (Central Europe) in the Years 1961–2020

⚠️ Warning: This summary was generated from the abstract only, as the full text was not available.

Identification

• Journal: International Journal of Climatology
• Year: 2026
• Date: 2026-01-08
• Authors: Hanna Ojrzyńska, Marek Błaś, Mieczysław Sobik
• DOI: 10.1002/joc.70256

Research Groups

Information not available from the abstract.

Short Summary

This study investigates precipitation trends in the Sudeten Mountains from 1961 to 2020, revealing no significant annual changes but significant seasonal (negative in spring, positive in winter) and monthly (decreasing in April) trends, which are partially explained by shifts in atmospheric circulation patterns.

Objective

• To identify annual, seasonal, and monthly significant changes in precipitation totals and the number of days with precipitation over the Sudeten Mountains for the period 1961–2020.
• To analyze the role of atmospheric circulation types in observed precipitation trends and their spatial patterns.

Study Configuration

• Spatial Scale: Sudeten Mountains (central European region).
• Temporal Scale: 60-year period (1961–2020).

Methodology and Data

• Models used: Not explicitly mentioned; the study appears to be based on statistical analysis of observational data.
• Data sources: Observational data for precipitation totals, number of days with precipitation, and frequencies of atmospheric circulation types.

Main Results

• No significant annual tendencies in precipitation totals were observed due to high year-to-year variability.
• Significant seasonal trends were identified: a negative tendency in spring precipitation totals and a positive tendency in winter precipitation totals.
• Significant monthly trends include a notable decreasing tendency in April precipitation, particularly in the Western Sudetes.
• The observed decrease in spring precipitation, especially in April, is concerning for plant water access at the beginning of the vegetation period, threatening forest ecosystem stability, biodiversity, and limiting water resources for economic use.
• Observed precipitation trends can be partially attributed to changes in atmospheric circulation dynamics, specifically shifts in the frequency of selected circulation types (e.g., increased occurrence of dry and anticyclonic types in April and November, and cyclonic types with advection of polar maritime air in January).

Contributions

• Provides a comprehensive analysis of precipitation trends across annual, seasonal, and monthly scales for the environmentally sensitive Sudeten Mountains.
• Establishes a link between observed precipitation trends and changes in atmospheric circulation patterns, offering a deeper understanding of the underlying mechanisms.
• Highlights critical regional vulnerabilities, such as decreasing spring precipitation, with direct implications for water resources, forest ecosystems, and biodiversity management.

Funding

Information not available from the abstract.

Citation

@article{Ojrzyńska2026Trends,
  author = {Ojrzyńska, Hanna and Błaś, Marek and Sobik, Mieczysław},
  title = {Trends and Circulation Conditions of Precipitation Over the Sudeten Mountains (Central Europe) in the Years 1961–2020},
  journal = {International Journal of Climatology},
  year = {2026},
  doi = {10.1002/joc.70256},
  url = {https://doi.org/10.1002/joc.70256}
}