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Masque de nuage du satellite Sentinel 2

Masque de nuage du satellite Sentinel 2

by Xavier Bailleau | Jan 7, 2022 | Model & Remote Sensing, Non classé

Sentinel 2 de l’ESA est sujet aux nuages lors de la production d’images, il est important de générer un masque de nuages afin d’éviter les erreurs de calculs lors des traitements. Cet article est écrit pour mettre en évidence les quelques défauts de...
Masque de nuage du satellite Sentinel 2

Sentinel 2 satellite cloud mask

by Xavier Bailleau | Jan 7, 2022 | Model & Remote Sensing, Non classé

Sentinel 2 from ESA satellite is sensitive to clouds when producing images. It is important to generate a cloud mask layer to avoid bad calculations during image processings. This post is written to highlight the some delaults of cloud mask algorithm from ESA...
OILSEEDRAPE AERIAL BIOMASS: A GOOD INDICATOR ABOUT NITROGEN UPTAKE

OILSEEDRAPE AERIAL BIOMASS: A GOOD INDICATOR ABOUT NITROGEN UPTAKE

by Xavier Bailleau | Dec 29, 2021 | Model & Remote Sensing

This post will focus on estimation of oilseedrape aerial biomass and its evolution in the begining of the 2021 winter. The purpose is to highlight the begining of nitrogen lack in the fields by observing a stabilisation or slow decreasing of biomass. A panel of 620...
OILSEEDRAPE AERIAL BIOMASS: A GOOD INDICATOR ABOUT NITROGEN UPTAKE

OILSEEDRAPE VEGETATIVE GROWTH IN FRANCE DURING WINTER 2021

by Xavier Bailleau | Dec 29, 2021 | Model & Remote Sensing

Locations of the fields in Eure et Loir (28) Figure 3:NDVI from sowing to end of december Study was conducted on a panel of 628 fields (7099 ha, around 7% of total oilseedrape area in Eure et Loir), all Sentinel 2 images are stored and analysed by a R program on a 24...
Numerical spatialized weather data comparison with official institutes data

Numerical spatialized weather data comparison with official institutes data

by Xavier Bailleau | Dec 27, 2021 | Model & Remote Sensing, Non classé

INTRODUCTION Weather data are the most important component in crop growth and development, usually in crop modelling we use daily weather data from weather stations records. Two kinds of weather stations are available: One from national institutes like Meteo France...
Cartes de rendement et traitements mathématiques

Cartes de rendement et traitements mathématiques

by Xavier Bailleau | Jan 23, 2020 | Model & Remote Sensing

IntroductionDe très nombreuses moissonneuses batteuses sont équipées de capteur de rendement, beaucoup moins ont la capacité de créer des cartes de rendement géo-référencées permettant d’analyser la variabilité intra-parcellaire de la culture.Le capteur...
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#rapeseed #nitrogen #fertilization #precision agriculture #modulation map #remote sensing #fertilization #usda #wasde #repport #usda #wasde #repport #corn #usda report #wheat #frost #snow #cold resistance #wheat #growth stage azote biomass blé cloudmask clouds color composite image digital photo Heatwave leaf area index math#matrix#neural network#remote sensing ndvi nitrogen fertilisation oilseedrape Radiometry rapeseed raster statistical analysis remote sensing sentinel sentinel 2 spatial analysis vegetation indices Wheat

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