Long‐term changes in drought indices in eastern and central Europe

نویسندگان

چکیده

This study analyses long-term changes in drought indices (Standardised Precipitation Index—SPI, Standardised Precipitation–Evapotranspiration Index—SPEI) at 1 and 3 months scales 182 stations 11 central eastern European countries during 1949–2018. For comparative purposes, the necessary atmospheric evaporative demand (AED) to obtain SPEI was calculated using two methods, Hargreaves-Samani (SPEIH) Penman-Monteith (SPEIP). The results show some relevant tendencies indices. Statistically significant increase SPI cold season (November–March), reflecting precipitation increase, found northern part of region, Estonia, Latvia, Lithuania, Belarus Poland. In rest domain, a weak mostly insignificant decrease prevailed winter. Summer (June–August) is characterized by opposite sign. An observed north, while clear SPEI, drying trend, typical for southern regions: Czech Republic, Slovakia, Hungary, Romania, Moldova A general tendency revealed also April, which statistically over wide area Republic Increasing trends September October were detected Hungary. use instead generally enhances trends.

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ژورنال

عنوان ژورنال: International Journal of Climatology

سال: 2021

ISSN: ['0899-8418', '1097-0088']

DOI: https://doi.org/10.1002/joc.7241