Derivation of regression equations for calculation of evaporation from a free water surface and identification of trends in measured variables in Hlasivo station

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00020711%3A_____%2F18%3A00004645" target="_blank" >RIV/00020711:_____/18:00004645 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Derivation of regression equations for calculation of evaporation from a free water surface and identification of trends in measured variables in Hlasivo station

Original language description

Evaporation from a free water surface is one of the important factors affecting the total water balance of a catchment. Due to the complicated direct measurements methods, evaporation is calculated from meteorological variables based formulas. Contribution evaluates data of evaporation, air temperature, relative air humidity and precipitation from Hlasivo station from seasons from May to October of 1957 to 2017. Hlasivo station in the Czech Republic near Tábor city was built in 1957. It has sixty-one old history of evaporation measuring for purposes of TGM Water Research Institute, p.r.i. Over the years, it was started with a systematic monitoring of evaporation as a component of the hydrological balance. Hlasivo station is only the one station in the Czech Republic where evaporation measurement is not cancelled. In the first part, statistical analyses of evaporation, air temperature, relative air humidity and precipitation are described. Significant upward trend was identified only in the evaporation values. Second part of the contribution describes the derivation of equations for calculating of evaporation based on meteorological variables regression. The evaporation was modelled with newly derived relationships and the results were compared. The best results were obtained using the formula based on the water temperature (air temperature) and wind speed.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

10500 - Earth and related environmental sciences

Project

<a href="/en/project/TJ01000196" target="_blank" >TJ01000196: Development of software for calculation of evaporation from open water surface for conditions of the Czech Republic</a><br>

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2018

Confidentiality

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

Article name in the collection

17th Biennial Conference ERB2018, Innovative monitoring techniques and modelling approaches for analysing hydrological processes in small basins, Darmstadt / Germany, September 11 - 14, 2018, Book of aBSTRACTS

ISBN

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ISSN

neni

e-ISSN

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Number of pages

1

Pages from-to

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Publisher name

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Place of publication

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Event location

Darmstadt, Germany

Event date

Sep 11, 2018

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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