Scholarlink

<p>This study assesses two drought indices; the Standardized Precipitation Index (SPI) and the Standardized Stream flow Index (SSI) at 12-month time scale. The major drought variables including: duration, severity and intensity were estimated. The indices are calculated by a parametric approach, which means the probability distribution is estimated for each month separately. The distributions are selected based on the Akaike Information Criterion and the EasyFit software. The parameters estimation was made using the maximum likelihood method. The joint behavior of drought characteristics and their long-term evolution in year was analyzed by the concept of Copula in the eastern part of Slovakia. Finally, the likelihood of moderate drought risk through joint return periods was evaluated.</p>

错误：搜索内容不能为空，请输入英文关键词
错误：关键词超出字数限制，请精简
高级检索

Assessment of meteorological and hydrological droughts in the eastern Slovakia using SPI and SSI indices

  • 期刊论文

  • 出版模式：

    开放获取

  • 发表日期：

    2025年5月21日

查看全文
  • Martina Zeleňáková,
  • Hany Abd Elhamid,
  • Tatiana Soľáková,
  • Pavol Purcz,
  • Carlo de Michele,
  • Peter Blišťan,
  • Helena Hlavatá,
  • Dorota Simonová,
  • Maria Manuela Portela

摘要

This study assesses two drought indices; the Standardized Precipitation Index (SPI) and the Standardized Stream flow Index (SSI) at 12-month time scale. The major drought variables including: duration, severity and intensity were estimated. The indices are calculated by a parametric approach, which means the probability distribution is estimated for each month separately. The distributions are selected based on the Akaike Information Criterion and the EasyFit software. The parameters estimation was made using the maximum likelihood method. The joint behavior of drought characteristics and their long-term evolution in year was analyzed by the concept of Copula in the eastern part of Slovakia. Finally, the likelihood of moderate drought risk through joint return periods was evaluated.