Evaluation of the METRIC and TSEB remote sensing evapotranspiration models in the floodplain area of the Thaya and Morava Rivers

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F86652079%3A_____%2F24%3A00586975" target="_blank" >RIV/86652079:_____/24:00586975 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/62156489:43210/24:43925127

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S2214581824001332?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S2214581824001332?via%3Dihub</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.ejrh.2024.101785" target="_blank" >10.1016/j.ejrh.2024.101785</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Evaluation of the METRIC and TSEB remote sensing evapotranspiration models in the floodplain area of the Thaya and Morava Rivers

Popis výsledku v původním jazyce

Study region: Floodplain ecosystem region at the confluence of the Morava and Thaya Rivers, the Czech Republic. Study focus: Accurate determination of actual evapotranspiration (ET a ) is essential for understanding surface hydrological conditions. The aim of this study was to evaluate two remote sensing models, METRIC and TSEB, for estimating ET a and energy fluxes in two ecosystems using the eddy covariance (EC) as a reference. New hydrological insights for the region: Both models demonstrate the ability to quantify ET a across the region. Compared with the METRIC, which had a mean bias error (MBE) = 0.12 mm/day, the TSEB better detected ET a in the forest test site (MBE TSEB =0.03 mm/day). In contrast, the METRIC improved detection of ET a (MBE METRIC =0.03 mm/day) in grassland test site, where the TSEB overestimate daily ET a (MBE TSEB = 0.52 mm/day). The models and EC indicate similar seasonal dynamics of the evaporative fraction and Bowen ratio throughout the growing season. Despite the overall agreement between the models and EC, selected spatial outputs indicate some disagreement among them in terms of the spatial patterns of ET a . This disagreement is related to the sensitivity of TSEB to canopy height/roughness, as well as the a priori Priestley Taylor coefficient in forests. Despite these shortcomings, this study highlights the applicability of remote sensing energy balancebased diagnostic models for studying hydrological processes in a spatially distributed manner.

Název v anglickém jazyce

Evaluation of the METRIC and TSEB remote sensing evapotranspiration models in the floodplain area of the Thaya and Morava Rivers

Popis výsledku anglicky

Study region: Floodplain ecosystem region at the confluence of the Morava and Thaya Rivers, the Czech Republic. Study focus: Accurate determination of actual evapotranspiration (ET a ) is essential for understanding surface hydrological conditions. The aim of this study was to evaluate two remote sensing models, METRIC and TSEB, for estimating ET a and energy fluxes in two ecosystems using the eddy covariance (EC) as a reference. New hydrological insights for the region: Both models demonstrate the ability to quantify ET a across the region. Compared with the METRIC, which had a mean bias error (MBE) = 0.12 mm/day, the TSEB better detected ET a in the forest test site (MBE TSEB =0.03 mm/day). In contrast, the METRIC improved detection of ET a (MBE METRIC =0.03 mm/day) in grassland test site, where the TSEB overestimate daily ET a (MBE TSEB = 0.52 mm/day). The models and EC indicate similar seasonal dynamics of the evaporative fraction and Bowen ratio throughout the growing season. Despite the overall agreement between the models and EC, selected spatial outputs indicate some disagreement among them in terms of the spatial patterns of ET a . This disagreement is related to the sensitivity of TSEB to canopy height/roughness, as well as the a priori Priestley Taylor coefficient in forests. Despite these shortcomings, this study highlights the applicability of remote sensing energy balancebased diagnostic models for studying hydrological processes in a spatially distributed manner.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10503 - Water resources

Projekt

<a href="/cs/project/EH22_008%2F0004635" target="_blank" >EH22_008/0004635: AdAgriF - Pokročilé metody redukce emisí a sekvestrace skleníkových plynů v zemědělské a lesní krajině pro mitigaci změny klimatu</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2024

Kód důvěrnosti údajů

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

Název periodika

Journal of Hydrology: Regional Studies

ISSN

2214-5818

e-ISSN

2214-5818

Svazek periodika

53

Číslo periodika v rámci svazku

JUN

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

24

Strana od-do

101785

Kód UT WoS článku

001240366700001

EID výsledku v databázi Scopus

2-s2.0-85192337045