CALIBRATION OF RAINFALL-RUNOFF MODELS BASED ON TWO TYPES OF SURFACE RUNOFF SPEED MEASUREMENT

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21110%2F15%3A00232823" target="_blank" >RIV/68407700:21110/15:00232823 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

čeština

Original language name

VYUŽITÍ DVOU METOD MĚŘENÍ RYCHLOSTI POVRCHOVÉHO ODTOKU KE KALIBRACI SRÁŽKO-ODTOKOVÝCH MODELŮ

Original language description

Erosion is a natural, however increasingly negative phenomenon that is necessary to be interested in. Flat, little visible erosion causes the agricultural land loses its fertility, which could be a big problem in the future. It is necessary to identify places most prone to erosion and they are supposed to be solved by erosion control measurement. Currently a lot of rainfall simulators are used to gain knowledge about the erosion processes. It is a device that consists of an experimental artificial rainfall area near the natural rainfall. A wide range of parameters are measured in the experiments. Among the most important is the amount of surface runoff and sediment concentration. Others include the speed of surface runoff, which is devoted to this article. In the implementation of field simulations were used two ways to measure speed. It is a method of color tracer, which is measured by how long it is dye hijacked by one meter. The second method uses the method of the change of the conductivity at a time when the tracker is the solution of salt (NaCl or KBr). The advantage of the color tracer is knowledge speed in any number of sections of selected length. Application of the method shows the distribution of conductivity marker in time. Important times in this case are the onset and the culmination of wave markers. Measurement speed is important for the calibration and validation of physical models of surface runoff. The value of the measured velocity was taken as a verification parameter during recalibration.

Czech name

VYUŽITÍ DVOU METOD MĚŘENÍ RYCHLOSTI POVRCHOVÉHO ODTOKU KE KALIBRACI SRÁŽKO-ODTOKOVÝCH MODELŮ

Czech description

Erosion is a natural, however increasingly negative phenomenon that is necessary to be interested in. Flat, little visible erosion causes the agricultural land loses its fertility, which could be a big problem in the future. It is necessary to identify places most prone to erosion and they are supposed to be solved by erosion control measurement. Currently a lot of rainfall simulators are used to gain knowledge about the erosion processes. It is a device that consists of an experimental artificial rainfall area near the natural rainfall. A wide range of parameters are measured in the experiments. Among the most important is the amount of surface runoff and sediment concentration. Others include the speed of surface runoff, which is devoted to this article. In the implementation of field simulations were used two ways to measure speed. It is a method of color tracer, which is measured by how long it is dye hijacked by one meter. The second method uses the method of the change of the conductivity at a time when the tracker is the solution of salt (NaCl or KBr). The advantage of the color tracer is knowledge speed in any number of sections of selected length. Application of the method shows the distribution of conductivity marker in time. Important times in this case are the onset and the culmination of wave markers. Measurement speed is important for the calibration and validation of physical models of surface runoff. The value of the measured velocity was taken as a verification parameter during recalibration.

Type

D - Article in proceedings

CEP classification

DF - Pedology

OECD FORD branch

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Project

<a href="/en/project/QJ1520265" target="_blank" >QJ1520265: Variability of Short-term Precipitation and Runoff in Small Catchments and its Influence on Water Resources Management</a><br>

Continuities

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

Publication year

2015

Confidentiality

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

Article name in the collection

Voda a krajina 2015

ISBN

978-80-01-05794-0

ISSN

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e-ISSN

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Number of pages

9

Pages from-to

81-89

Publisher name

ČVUT, Fakulta stavební, Katedra hydromeliorací a krajinného hospodářství

Place of publication

Praha

Event location

Praha

Event date

Sep 23, 2015

Type of event by nationality

CST - Celostátní akce

UT code for WoS article

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