Assessing Global Reservoir‐Based Hydrological Droughts by Fusing Storage and Evaporation

Assessing Global Reservoir‐Based Hydrological Droughts by Fusing Storage and Evaporation

Although reservoirs serve as a lifeline for drought mitigation and adaptation, reservoir‐based droughts (RBD) have received limited attention. Especially RBD that incorporate reservoir evaporation have remained overlooked. Here, we develop an Integrated Reservoir Drought Index (IRDI) using a Frank c...

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Veröffentlicht in:Geophysical research letters 2024-01, Vol.51 (1), p.n/a
Hauptverfasser: Shah, Deep, Zhao, Gang, Li, Yao, Singh, Vijay P., Gao, Huilin
Format: Artikel
Sprache:eng
Schlagworte:
Climate
Climate and population
Climate change
Drought
Drought characteristics
Drought index
droughts
Evaporation
Evaporation rate
human influence
Human influences
Hydrologic drought
Inflow
Mitigation
Reservoir evaporation
Reservoir operation
Reservoir storage
Reservoirs
Trends
Water inflow
Water reservoirs
Water resources
Water shortages
Water supply
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Zusammenfassung:Although reservoirs serve as a lifeline for drought mitigation and adaptation, reservoir‐based droughts (RBD) have received limited attention. Especially RBD that incorporate reservoir evaporation have remained overlooked. Here, we develop an Integrated Reservoir Drought Index (IRDI) using a Frank copula by combining the effects of reservoir storage and evaporation rate for 164 global reservoirs. Results show that Africa, South America, and Australia have experienced relatively longer RBD, whereas Asia and Africa have experienced more intense RBD. Furthermore, when significant (p‐value 
ISSN:0094-8276
1944-8007
DOI:10.1029/2023GL106159