Original title: Towards a combining of remote sensing and in situ evapotranspiration measurements
Authors: Fischer, Milan ; Jurečka, František ; Anderson, M. ; Hain, C. ; Pozníková, Gabriela ; Hlavinka, Petr ; Orság, Matěj ; Lukas, V. ; Žalud, Z. ; Trnka, Miroslav
Document type: Papers
Conference/Event: Quo vaditis agriculture, forestry and society under Global Change?, Velké Karlovice (CZ), 20171002
Year: 2017
Language: eng
Abstract: This study provides preliminary results from combining in situ Bowen ratio energy balance (BREB) and\nevapotranspiration (ET) measurements techniques with physically based remote sensing ET estimates determined\nby the Atmosphere-Land Exchange Inverse (ALEXI) model. Evapotranspiration measurements\nand ALEXI estimates were analysed in an agricultural area close to Polkovice, Czech Republic during 2015,\nwhen a drought spell and intensive heatwaves appeared in the country. The BREB system was monitoring a\nwinter wheat (Triticum aestivum L.) field (~26 ha) while the ALEXI pixel (~5 km resolution) covered a wide\nrange of crops, including mainly winter wheat, spring barley, and winter rape. The study results showed that,\nalthough the applied methods work at different spatial scales (field vs. landscape), their combination can provide\nfurther insights into ET at both scales. For instance, such approach can be used to identify whether a specific\necosystem investigated in situ contributes to cooling or warming of the landscape.
Keywords: Bowen ratio energy balance; evapotranspiration; remote sensing
Project no.: LO1415 (CEP)
Funding provider: GA MŠk
Host item entry: Quo vaditis agriculture, forestry and society under global change? Conference proceeding, ISBN 978-80-87902-22-6

Institution: Global Change Research Institute AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0280302

Permalink: http://www.nusl.cz/ntk/nusl-371531


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Research > Institutes ASCR > Global Change Research Institute
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 Record created 2018-03-07, last modified 2021-11-24


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