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Název:
The importance of the radiation balance for water retention of the landscape
Autoři: Kofroňová, Jitka
Typ dokumentu: Příspěvky z konference
Konference/Akce: Kostelecké inspirování 2018 /10./, Kostelec nad Černými lesy (CZ), 20181122
Rok: 2018
Jazyk: eng
Abstrakt: As part of the radiation balance, longwave radiation is one of the factors needed to estimate potential evapotranspiration (PET). Since the longwave radiation balance is rarely measured, many computational methods have been designed. In this study, we report on the difference between the observed longwave radiation balance and modelling results obtained using the two main procedures outlined in Manuals 24 and 56 of the FAO. The performance of these equations was evaluated in the warmer months (April to October) over eight years at the Liz experimental catchment in the Bohemian Forest (Czech Republic). The coefficients of both methods were also calibrated based on local conditions. Four commonly used methods were used to calculate the PET (Penman-Monteith, Pristley and Taylor, Kimberley-Penman, Thom and Oliver). The use of default coefficient values gave errors of 40 100 mm and 0 20 mm for the seasonal PET estimates for FAO56 and FAO24, respectively (the PET was usually overestimated). Parameter calibration decreased the FAO56 error to less than 20 mm per season (FAO24 remained unaffected by the calibration). The FAO56 approach with calibrated coefficients proved to be more suitable for estimation of the longwave radiation balance.
Klíčová slova: potential evapotranspiration (PET); radiation balance; water retention
Zdrojový dokument: Kostelecké inspirování 2018: Sborník abstraktů, ISBN 978-80-213-2894-5
Instituce: Ústav pro hydrodynamiku AV ČR (web)
Informace o dostupnosti dokumentu: Dokument je dostupný v repozitáři Akademie věd.
Původní záznam: http://hdl.handle.net/11104/0291390
Trvalý odkaz NUŠL: http://www.nusl.cz/ntk/nusl-390767
Záznam je zařazen do těchto sbírek:
Věda a výzkum > AV ČR > Ústav pro hydrodynamiku
Konferenční materiály > Příspěvky z konference
Autoři: Kofroňová, Jitka
Typ dokumentu: Příspěvky z konference
Konference/Akce: Kostelecké inspirování 2018 /10./, Kostelec nad Černými lesy (CZ), 20181122
Rok: 2018
Jazyk: eng
Abstrakt: As part of the radiation balance, longwave radiation is one of the factors needed to estimate potential evapotranspiration (PET). Since the longwave radiation balance is rarely measured, many computational methods have been designed. In this study, we report on the difference between the observed longwave radiation balance and modelling results obtained using the two main procedures outlined in Manuals 24 and 56 of the FAO. The performance of these equations was evaluated in the warmer months (April to October) over eight years at the Liz experimental catchment in the Bohemian Forest (Czech Republic). The coefficients of both methods were also calibrated based on local conditions. Four commonly used methods were used to calculate the PET (Penman-Monteith, Pristley and Taylor, Kimberley-Penman, Thom and Oliver). The use of default coefficient values gave errors of 40 100 mm and 0 20 mm for the seasonal PET estimates for FAO56 and FAO24, respectively (the PET was usually overestimated). Parameter calibration decreased the FAO56 error to less than 20 mm per season (FAO24 remained unaffected by the calibration). The FAO56 approach with calibrated coefficients proved to be more suitable for estimation of the longwave radiation balance.
Klíčová slova: potential evapotranspiration (PET); radiation balance; water retention
Zdrojový dokument: Kostelecké inspirování 2018: Sborník abstraktů, ISBN 978-80-213-2894-5
Instituce: Ústav pro hydrodynamiku AV ČR (web)
Informace o dostupnosti dokumentu: Dokument je dostupný v repozitáři Akademie věd.
Původní záznam: http://hdl.handle.net/11104/0291390
Trvalý odkaz NUŠL: http://www.nusl.cz/ntk/nusl-390767
Záznam je zařazen do těchto sbírek:
Věda a výzkum > AV ČR > Ústav pro hydrodynamiku
Konferenční materiály > Příspěvky z konference
Záznam vytvořen dne 2019-01-07, naposledy upraven 2021-11-24.