Article (Scientific journals)
Crop Phenology Modelling Using Proximal and Satellite Sensor Data
Gobin, Anne; Sallah, Abdoul-Hamid Mohamed; Curnel, Yannick et al.
2023In Remote Sensing, 15 (8), p. 2090
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Keywords :
General Earth and Planetary Sciences
Abstract :
[en] Understanding crop phenology is crucial for predicting crop yields and identifying potential risks to food security. The objective was to investigate the effectiveness of satellite sensor data, compared to field observations and proximal sensing, in detecting crop phenological stages. Time series data from 122 winter wheat, 99 silage maize, and 77 late potato fields were analyzed during 2015–2017. The spectral signals derived from Digital Hemispherical Photographs (DHP), Disaster Monitoring Constellation (DMC), and Sentinel-2 (S2) were crop-specific and sensor-independent. Models fitted to sensor-derived fAPAR (fraction of absorbed photosynthetically active radiation) demonstrated a higher goodness of fit as compared to fCover (fraction of vegetation cover), with the best model fits obtained for maize, followed by wheat and potato. S2-derived fAPAR showed decreasing variability as the growing season progressed. The use of a double sigmoid model fit allowed defining inflection points corresponding to stem elongation (upward sigmoid) and senescence (downward sigmoid), while the upward endpoint corresponded to canopy closure and the maximum values to flowering and fruit development. Furthermore, increasing the frequency of sensor revisits is beneficial for detecting short-duration crop phenological stages. The results have implications for data assimilation to improve crop yield forecasting and agri-environmental modeling.
Disciplines :
Agriculture & agronomy
Author, co-author :
Gobin, Anne ;  Department of Earth and Environmental Sciences, Faculty of Bioscience Engineering, Katholieke Universiteit Leuven, 3001 Leuven, Belgium ; Remote Sensing Unit, Flemish Institute of Technological Research (VITO), 2400 Mol, Belgium
Sallah, Abdoul-Hamid Mohamed;  SPHERES Research Unit, University of Liège, 6700 Arlon, Belgium
Curnel, Yannick;  Centre Wallon de Recherches Agronomiques, CRAW, 5030 Gembloux, Belgium
Delvoye, Cindy;  Earth and Life Institute, Université Catholique de Louvain, 1348 Louvain-la-Neuve, Belgium
Weiss, Marie;  EMMAH, Institut National de Recherche pour l’Agriculture, l'alimentation et l'Environnement (INRAE), 84000 Avignon, France
Wellens, Joost  ;  Université de Liège - ULiège > Sphères
Piccard, Isabelle;  Remote Sensing Unit, Flemish Institute of Technological Research (VITO), 2400 Mol, Belgium
Planchon, Viviane;  Centre Wallon de Recherches Agronomiques, CRAW, 5030 Gembloux, Belgium
Tychon, Bernard ;  Université de Liège - ULiège > Département des sciences et gestion de l'environnement (Arlon Campus Environnement)
Goffart, Jean-Pierre ;  Centre Wallon de Recherches Agronomiques, CRAW, 5030 Gembloux, Belgium
Defourny, Pierre;  Earth and Life Institute, Université Catholique de Louvain, 1348 Louvain-la-Neuve, Belgium
Language :
English
Title :
Crop Phenology Modelling Using Proximal and Satellite Sensor Data
Publication date :
15 April 2023
Journal title :
Remote Sensing
eISSN :
2072-4292
Publisher :
MDPI AG
Volume :
15
Issue :
8
Pages :
2090
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
BELSPO - Belgian Federal Science Policy Office [BE]
Available on ORBi :
since 19 May 2023

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