Drainage Runoff Separation of New and Old Water Based on Precipitation, Air, Water, and Soil Temperature Compared to Stable Isotopes O-18 and H-2

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60076658%3A12220%2F22%3A43904720" target="_blank" >RIV/60076658:12220/22:43904720 - isvavai.cz</a>

Result on the web

<a href="https://www.mdpi.com/2073-4441/14/15/2349" target="_blank" >https://www.mdpi.com/2073-4441/14/15/2349</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.3390/w14152349" target="_blank" >10.3390/w14152349</a>

Result language

angličtina

Original language name

Drainage Runoff Separation of New and Old Water Based on Precipitation, Air, Water, and Soil Temperature Compared to Stable Isotopes O-18 and H-2

Original language description

In order to evaluate the proportion of old and new water in drainage runoff, we recorded air temperature, drainage discharge, drainage runoff temperature, soil temperature, precipitation totals, and temperature. The results of separation by temperature were compared with the results of chemical separation using the stable isotopes delta O-18 and delta H-2 measured in causal precipitation and monitored in drainage runoff. Separation was determined based on precipitation temperature in 18 rainfall-runoff events and on soil temperature in 20 rainfall-runoff events, with no significant difference between results of separation of drainage runoff based on temperature and that based on isotopes. Separation of runoff based on temperature is feasible only for simple isolated rainfall-runoff events as opposed to those involving multiple rainfalls. Time to peak discharge was identified as a viable factor to determine whether to employ separation based on soil temperature or on precipitation temperature. Time to peak discharge showed a strong correlation with the intensity of precipitation. The results suggest that, conditional on analysis of a larger dataset, isotope separation of drainage runoff and, possibly, runoff in watercourses may potentially be replaced with more economical and technically simple measurement of soil and precipitation/air temperature.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10511 - Environmental sciences (social aspects to be 5.7)

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2022

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Water

ISSN

2073-4441

e-ISSN

2073-4441

Volume of the periodical

14

Issue of the periodical within the volume

15

Country of publishing house

CH - SWITZERLAND

Number of pages

16

Pages from-to

1-16

UT code for WoS article

000838899500001

EID of the result in the Scopus database

2-s2.0-85136992443