Evaporation Loss From Small Agricultural Reservoirs in a Warming Climate: An Overlooked Component of Water Accounting

Aminzadeh, Milad, Friedrich, Noemi, Narayanaswamy, Sankeerth, Madani, Kaveh and Shokri, Nima, (2024). Evaporation Loss From Small Agricultural Reservoirs in a Warming Climate: An Overlooked Component of Water Accounting. Earth's Future, 12(1), N/A-N/A

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    Author Aminzadeh, Milad
    Friedrich, Noemi
    Narayanaswamy, Sankeerth
    Madani, Kaveh
    Shokri, Nima
    Title Evaporation Loss From Small Agricultural Reservoirs in a Warming Climate: An Overlooked Component of Water Accounting
    Appearing in Earth's Future
    Volume 12
    Issue No. 1
    Publication Date 2024-01-23
    Place of Publication N/A
    Publisher AGU
    Start page N/A
    End page N/A
    Language eng
    Abstract 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.
    Copyright Holder author(s)
    Copyright Year 2024
    Copyright type Creative commons
    DOI 10.1029/2023EF004050
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    Created: Thu, 26 Sep 2024, 02:32:25 JST by Haideh Beigi on behalf of UNU INWEH