ArticleScientific data2023
A global daily evapotranspiration deficit index dataset for quantifying drought severity from 1979 to 2022.
Article in Scientific data, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Nonlinear increase of compound drought-heatwave events since the early 2000s.Science advances · 2026Article
- A global drought dataset for Multivariate Composite Drought Index (MCDI) and its constituent drought indices.Scientific data · 2025Article
- A global daily evapotranspiration deficit index dataset for quantifying drought severity from 1979 to 2022.Scientific data · 2023Article
Corrections and comments
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Authors and funding
4 authors.
Funding
Abstract
Droughts cause multiple ecological and social damages. Drought indices are key tools to quantify drought severity, but they are mainly limited to timescales of monthly or longer. However, shorter-timescale (e.g., daily) drought indices enable more accurate identification of drought characteristics (e.g., onset and cessation time) and help timely potential mitigation of adverse effects. Here, we propose a dataset of a daily drought index named daily evapotranspiration deficit index (DEDI), which is produced for global land areas from 1979 to 2022 using actual and potential evapotranspiration data. Validation efforts show that the DEDI dataset can well identify dry and wet variations in terms of spatial patterns and temporal evolutions when compared with other available drought indices on a daily scale. The dataset also has the capability to capture recent drying trends and to detect ecology- or agriculture-related droughts. Overall, the DEDI dataset is a step forward in facilitating drought monitoring and early warning at higher temporal resolution than other compared existing products.
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Registered trials
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