Publications

1.1       Articles in rank A journals

Estimation of daily CO2 fluxes and of the components of the carbon budget for winter wheat by the assimilation of Sentinel 2-like remote sensing data into a crop model. Gaétan Pique, Rémy Fieuzal, Ahmad Al Bitar, Amanda Veloso, Tiphaine Tallec, Aurore Brut, Morgan Ferlicoq, Bartosz Zawilski, Jean-François Dejoux, Hervé Gibrin, Eric Ceschia (2020) Geoderma, 376, 114428. DOI : http://doi.org/10.1016/j.geoderma.2020.114428

The upper right corner shows the location of the study site in southwestern France, as well as the footprint of Formosat-2 (green square) and Spot (orange square) images (in 2014 and 2012, respectively). The SPOT-4 false color image used as the background shows the flux sites of FR-Aur and FR-Lam (zoomed areas), the network of fields sampled for biomass and yield during the 2011 field campaign (yellow points), and the SAFRAN meteorological grid (black crosses).

Highlights

  • We developed a model estimating the components of the carbon budget for croplands.
  • The model assimilates remote sensing products for up-scaling the carbon budget.
  • Biomass, yield and CO2 fluxes of winter wheat are correctly estimated.
  • Weeds, re-growth and cover crops significantly impact the carbon budgets.
  • Remote sensing data assimilation in crop models is promising for global application.

Combining high-resolution remote sensing products with a crop model to estimate carbon and water budget components: application to sunflower. Gaétan Pique, Rémy Fieuzal, Philippe Debaeke, Ahmad Al Bitar, Tiphaine Tallec, Eric Ceschia (2020) Remote Sensing. DOI: http://doi.org/10.3390/rs12182967

The annual carbon budget (NECB) simultated for 200 fields with SAFYE-CO2 inside the study area. Digital elevation model from shuttle Radar Topography Mission is displayed in the background

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1.2       Proceedings

A strategy for estimating the components of the carbon and water budgets for croplands at plot scale over large areas. Eric Ceschia, Gaétan Pique, Valérie Demarez, Amanda Veloso, Rémy Fieuzal (2018) ICOS Science Conference (Praque, Czech Republic),

Estimation of biomass and CO2 fluxes of sunflower by assimilating HSTR data in a simple crop model. Gaétan Pique, Rémy Fieuzal, Eric Ceschia (2020) 2020 Mediterranean and Middle-East Geoscience and Remote Sensing Symposium (M2GARSS). DOI : http://doi.org/10.1109/M2GARSS47143.2020.9105147

Estimation of crop production and CO2 fluxes using remote sensing: Application to a winter wheat /sunflower rotation. Gaétan Pique, Taeken Wijmert, Rémy Fieuzal, Eric Ceschia (2020) ECAS 2020 meeting. Environ. Sci. Proc. 2021, 4(1), 15; https://doi.org/10.3390/ecas2020-08141

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1.3 Thesis

– Amanda Veloso, MRT scholarship, defended in May 2014,

– Gaétan Pique, CNES-ADEME grant, defended in May 2021 Within the framework of these 2 theses, approximately 50% of the work time was allocated to the development, calibration, validation and publication of the model results.

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