| |  Online-Ressource |
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| Verfasst von: | He, Liyin [VerfasserIn]  |
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| | Magney, Troy [VerfasserIn] |
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| | Dutta, Debsunder [VerfasserIn] |
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| | Yin, Yi [VerfasserIn] |
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| | Köhler, Philipp [VerfasserIn] |
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| | Großmann, Katja [VerfasserIn] |
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| | Stutz, Jochen [VerfasserIn] |
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| | Dold, Christian [VerfasserIn] |
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| | Hatfield, Jerry [VerfasserIn] |
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| | Guan, Kaiyu [VerfasserIn] |
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| | Peng, Bin [VerfasserIn] |
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| | Frankenberg, Christian [VerfasserIn] |
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| Titel: | From the ground to space |
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| Titelzusatz: | using solar-induced chlorophyll fluorescence to estimate crop productivity |
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| Verf.angabe: | Liyin He, Troy Magney, Debsunder Dutta, Yi Yin, Philipp Köhler, Katja Grossmann, Jochen Stutz, Christian Dold, Jerry Hatfield, Kaiyu Guan, Bin Peng, and Christian Frankenberg |
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| E-Jahr: | 2020 |
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| Jahr: | 09 March 2020 |
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| Fussnoten: | Gesehen am 18.09.2020 |
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| Titel Quelle: | Enthalten in: Geophysical research letters |
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| Ort Quelle: | Hoboken, NJ : Wiley, 1974 |
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| Jahr Quelle: | 2020 |
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| Band/Heft Quelle: | 47(2020,7) Artikel-Nummer e2020GL087474, 12 Seiten |
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| ISSN Quelle: | 1944-8007 |
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| Abstract: | Timely and accurate monitoring of crops is essential for food security. Here, we examine how well solar-induced chlorophyll fluorescence (SIF) can inform crop productivity across the United States. Based on tower-level observations and process-based modeling, we find highly linear gross primary production (GPP):SIF relationships for C4 crops, while C3 crops show some saturation of GPP at high light when SIF continues to increase. C4 crops yield higher GPP:SIF ratios (30-50%) primarily because SIF is most sensitive to the light reactions (does not account for photorespiration). Scaling to the satellite, we compare SIF from the TROPOspheric Monitoring Instrument (TROPOMI) against tower-derived GPP and county-level crop statistics. Temporally, TROPOMI SIF strongly agrees with GPP observations upscaled across a corn and soybean dominated cropland (R2 = 0.89). Spatially, county-level TROPOMI SIF correlates with crop productivity (R2 = 0.72; 0.86 when accounting for planted area and C3/C4 contributions), highlighting the potential of SIF for reliable crop monitoring. |
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| DOI: | doi:10.1029/2020GL087474 |
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| URL: | Bitte beachten Sie: Dies ist ein Bibliographieeintrag. Ein Volltextzugriff für Mitglieder der Universität besteht hier nur, falls für die entsprechende Zeitschrift/den entsprechenden Sammelband ein Abonnement besteht oder es sich um einen OpenAccess-Titel handelt.
Volltext ; Verlag: https://doi.org/10.1029/2020GL087474 |
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| | Volltext: https://agupubs.onlinelibrary.wiley.com/doi/abs/10.1029/2020GL087474 |
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| | DOI: https://doi.org/10.1029/2020GL087474 |
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| Datenträger: | Online-Ressource |
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| Sprache: | eng |
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| Sach-SW: | crop monitoring |
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| | fluorescence |
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| | gross primary production |
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| | net primary production |
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| K10plus-PPN: | 1733317570 |
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| Verknüpfungen: | → Zeitschrift |
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From the ground to space / He, Liyin [VerfasserIn]; 09 March 2020 (Online-Ressource)
