Evaporation in Mediterranean conditions: Estimations based on isotopic approaches at the watershed scale.
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F21%3A00553946" target="_blank" >RIV/60077344:_____/21:00553946 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1002/hyp.14085" target="_blank" >https://doi.org/10.1002/hyp.14085</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/hyp.14085" target="_blank" >10.1002/hyp.14085</a>
Alternative languages
Result language
angličtina
Original language name
Evaporation in Mediterranean conditions: Estimations based on isotopic approaches at the watershed scale.
Original language description
In Mediterranean regions, the marked climatic seasonality and uneven precipitation distribution complicate the application of isotope mass balances to obtain meaningful basin-wide annual average evaporation rates. In the present study, a mass balance approach carried out on the Tavignanu River watershed in Corsica (France), showed unrealistic evaporation rate estimates: 10% for 2017-2018 and 1% for 2018-2019. This suggests that not only does evaporation alter the seasonal isotopic composition in the river, but that there is complex variability of the dominant water reservoirs contributing to the streamflow. Therefore, we propose a modified mass balance approach, including monthly quantifications of different water sources contributing to the river discharge. This allows the discrimination of isotopic variation occurring by evaporation from that originating by mixing processes. By applying this modified approach, we estimated evaporation rates on the Tavignanu River watershed that were in good agreement with results obtained by hydrological modelling: 40% for 2017-2018 and 46% for 2018-2019, respectively. An uncertainty analysis showed that evaporation rates obtained with the modified isotopic approach are close to those obtained with the non-modified approach. Therefore, we recommend using this modified isotope mass balance approach to estimate evaporation rates in such regions as the Mediterranean with high seasonality in hydrological processes.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
10501 - Hydrology
Result continuities
Project
<a href="/en/project/GJ19-22276Y" target="_blank" >GJ19-22276Y: Quantifying water and phosphorus fluxes in disturbed vs. intact mountain forest catchments by hydrological, isotopic and hydrochemical methods</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2021
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Hydrological Processes
ISSN
0885-6087
e-ISSN
1099-1085
Volume of the periodical
35
Issue of the periodical within the volume
5
Country of publishing house
GB - UNITED KINGDOM
Number of pages
15
Pages from-to
e14085
UT code for WoS article
000655496700005
EID of the result in the Scopus database
2-s2.0-85106889081