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  4. Evaporation loss from small agricultural reservoirs in a warming climate : an overlooked component of water accounting
 
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Evaporation loss from small agricultural reservoirs in a warming climate : an overlooked component of water accounting

Citation Link: https://doi.org/10.15480/882.9495
Publikationstyp
Journal Article
Date Issued
2024-01-23
Sprache
English
Author(s)
Aminzadeh, Milad  
Geo-Hydroinformatics B-9  
Friedrich, Noemi  
Narayanaswamy, Sankeerth Govindaiah  orcid-logo
Studiendekanat Bauwesen (B)  
Madani, Kaveh  
Shokri, Nima  
Geohydroinformatik B-9  
TORE-DOI
10.15480/882.9495
TORE-URI
https://hdl.handle.net/11420/47192
Journal
Earth's future  
Volume
12
Issue
1
Article Number
e2023EF004050
Citation
Earth's Future 12 (1): e2023EF004050 (2024)
Publisher DOI
10.1029/2023EF004050
Scopus ID
2-s2.0-85182857934
Publisher
Wiley
Small agricultural reservoirs support water demands during dry spells. However, evaporative losses that are often overlooked in water accounting and management diminish the storage efficiency of these popular but un-inventoried resources. We developed a predictive framework to identify the spatio-temporal extent of small reservoirs (900–100,000 m2) and quantify their evaporative losses using a physically-based model. Focusing on water-stressed regions of Europe (Italy, Spain, and Portugal), our results indicate that the total number and cumulative area of small reservoirs in drier areas of Europe almost doubled in two decades from about 6,200 reservoirs with the cumulative area of 46 km2 in 2,000 to 11,800 reservoirs with the cumulative area of 93.5 km2 in 2020. We observed climate-driven trends in the expansion of agricultural reservoirs and their evaporative losses which exceeded 72 million cubic meters during warm months (April to September) accounting for 38% of their total storage capacity.
Subjects
evaporative loss
water resources management
water accounting
reservoir operations
climate change
DDC Class
624: Civil Engineering, Environmental Engineering
More Funding Information
Institute of Geo‐Hydroinformatics, Hamburg University of Technology
Publication version
publishedVersion
Lizenz
https://creativecommons.org/licenses/by-nc-nd/4.0/
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