Subject: Earth and Environmental Sciences
Geographic Coverage Country / Nation: Réunion
Keyword Term: base de données spatiale
1 to 10 of 10 Results
Bley-Dalouman, Hélène; Broust, François; Tran, Annelise, 2023, "Forest map, Western Highlands region, Reunion Island", https://doi.org/10.18167/DVN1/LXXO9Y, CIRAD Dataverse, V1
A land cover map of forests of the Western Highlands region, Reunion Island was produced using a cloudless very high spatial resolution Pleiades image acquired on 31 May 2020. The final map was obtained through a supervised object-based classification of the Pleiades image using... |
Dupuy, Stéphane, 2021, "Reunion Island - 2019, reference spatial database", https://doi.org/10.18167/DVN1/T3GIW2, CIRAD Dataverse, V1
The reference spatial database for 2019 contains 5142 plots. We use it to calculate a land use map from satellite images. It is organized according to a nested 3-level nomenclature. This is an update of the 2018 database. The sources and techniques used to build the database by l... |
21 déc. 2020
Tran, Annelise; Le Minter, Gildas; Balleydier, Elsa; Etheves, Anaïs; Laval, Morgane; Boucher, Floriane; Guernier, Vanina; Lagadec, Erwan; Mavingui, Patrick; Cardinale, Eric; Tortosa, Pablo, 2020, "Map of rat fleas distribution, Reunion Island", https://doi.org/10.18167/DVN1/TWNWG6, CIRAD Dataverse, V1
Map of predicted Xenopsylla Genus Flea Index (GFI) based on climatic and environmental variables, Reunion Island. Xenopsylla cheopis and Xenopsylla brasiliensis are known vectors of Rickettsia typhi, a pathogenic bacterium causing murine typhus, a neglected zoonotic disease. GFI... |
Dupuy, Stéphane; Gaetano, Raffaele, 2019, "Reunion island - 2017, Land cover map (Pleiades)", https://doi.org/10.18167/DVN1/RTAEHK, CIRAD Dataverse, V3
As part of THEIA (the French Data and Services center for continental surfaces) CIRAD's TETIS research unit is developing an automated mapping method based on the Moringa chain that minimizes interactions with users by automating most image analysis and processing. The methodolog... |
Dupuy, Stéphane, 2019, "Reunion Island - 2017, reference spatial database", https://doi.org/10.18167/DVN1/TOARDN, CIRAD Dataverse, V3
The reference spatial database for 2017 is composed of 6256 plots. We use it to calculate a land use map from satellite images.It is organized according to a nomenclature offering 3 levels of precision. We randomly selected 20% of the plots in each class to build a validation dat... |
Dupuy, Stéphane; Gaetano, Raffaele, 2019, "Reunion island - 2018, Land cover map (Pleiades) - 0.5m", https://doi.org/10.18167/DVN1/WKAJZO, CIRAD Dataverse, V1
CIRAD's TETIS research unit is developing an automated mapping method based on the Moringa chain that minimizes interactions with users by automating most image analysis and processing. The methodology uses jointly a Very High Spatial Resolution image (Spot6/7 or Pleiades) and on... |
Dupuy, Stéphane, 2019, "Reunion Island - 2018, learning spatial database", https://doi.org/10.18167/DVN1/8QJABD, CIRAD Dataverse, V1
The spatial learning database for 2018 contains 5620 plots. We use it to calculate a land use map from satellite images. It is organized according to a nested 3-level nomenclature. The sources and techniques used to build the database by land use groups are described below: For a... |
15 oct. 2019
Londoño Villegas, Mónica María; Le Mezo, Lionel; Dupuy, Stéphane, 2019, "Base de données spatiale pour l'apprentissage - 2016-2017- La Réunion", https://doi.org/10.18167/DVN1/HM9QNL, CIRAD Dataverse, V1
La base de données pour la période 2016-2017, est constituée de 2650 parcelles. Nous l'utilisons pour calculer une carte d'occupation du sol à partir d'image satellites. Nous avons sélectionné de façon aléatoire 20% des parcelles de chaque classe pour constituer une base de donné... |
Dupuy, Stéphane; Gaetano, Raffaele, 2019, "La Réunion - Carte d'occupation du sol, 2017 (Spot6/7)", https://doi.org/10.18167/DVN1/OMHZQL, CIRAD Dataverse, V1
Dans le cadre du Centre d’Expertise Scientifique Occupation des Sols de THEIA, l’UMR TETIS du CIRAD développe une méthode de cartographie automatisée fondée sur la chaine Moringa qui minimise les interactions avec les utilisateurs par l’automatisation de la plupart des processus... |
Dupuy, Stéphane; Londoño Villegas, Mónica María; Gaetano, Raffaele, 2019, "La Réunion - Carte d'occupation du sol, 2016-2017", https://doi.org/10.18167/DVN1/TLELPO, CIRAD Dataverse, V1
Cette carte d'occupation du sol de l'île de la Réunion a été obtenue avec la chaine Moringa mise au point par l’équipe Cirad de l’UMR TETIS. Il s’agit du résultat d’une classification supervisée utilisant : (i) une base de données terrain constituée de relevés de terrain et d'inf... |
