Subject: Computer and Information Science
Language: French
Keyword Term: base de données spatiale
Subject: Earth and Environmental Sciences
Keyword Term: environment
Keyword Term: télédétection
1 to 10 of 14 Results
11 mars 2024
Dupuy, Stéphane; Lelong, Camille; Husson, Clara; Guillon, Colas; Ahamada, Anisse; Dautrey, Emilien; Moussa, Toufa; El Hadji, Inssa; Said, Mohamed, 2024, "Mayotte - 2023 - Base de données de référence de l'occupation du sol", https://doi.org/10.18167/DVN1/WPLIUE, CIRAD Dataverse, V1
La base de données de référence a été créée pour entrainer un algorithme de classification supervisé d'images satellites pour la production de cartes d'occupation du sol. Il s'agit de polygones représentatifs de l'occupation du sol de l'ile de Mayotte. La table attributaire conti... |
11 mars 2024
Dupuy, Stéphane; Lelong, Camille; Gaetano, Raffaele; Villers, Alexandre, 2024, "Occupation du sol - Mayotte - Carte de 2023", https://doi.org/10.18167/DVN1/CTNRHW, CIRAD Dataverse, V1
Nous diffusons des cartes d'occupation des sols de l'ile de Mayotte produites en 2023 en utilisant une méthodologie combinant l'apprentissage automatique et l'analyse d'images satellites basée sur les objets (OBIA). Ces travaux ont été réalisé dans le cadre du projet BIOTAMAYA (f... |
26 oct. 2023
Andriamampianina, Zaka; Rajaonson Nosy, Vokatsoa Lahatra; Andriamampionona, Lôla; Dupuy, Stéphane; Muller, Bertrand, 2023, "Itasy, Vakinankaratra - Madagascar - 2023 - Land cover reference spatial database", https://doi.org/10.18167/DVN1/5GHE96, CIRAD Dataverse, V1
This reference database in vector format (ESRI shape format) is organised according to a multi-level nomenclature. It is used to train an image classification algorithm with a view to producing land use maps for the Itashy and Vakinankaratra regions as part of the DINAAMICC proje... |
26 oct. 2023
Dupuy, Stéphane; Lebourgeois, Valentine; Gaetano, Raffaele, 2023, "Itasy, Vakinankaratra - Madagascar - 2022-2023, Land cover map", https://doi.org/10.18167/DVN1/TKTPCH, CIRAD Dataverse, V1
The land use maps published here were produced for the communes studied by the DINAAMICC project for the period 2022-2023 (based on GPS collected in the field in March 2023). They partially cover the Itasy and Vakinankaratra regions. The reference database used to produce this ma... |
4 avr. 2023
Dupuy, Stéphane; Andriamanga, Andoniaina Valérie; Burnod, Perrine, 2023, "Antananarivo - Madagascar - Land use change map between 2017 and 2022", https://doi.org/10.18167/DVN1/CD2ZTF, CIRAD Dataverse, V1
This map is based on a selection of land use changes, calculated from the crossing of the 2017 and 2022 land use maps. The latters, obtained by supervised classification of satellite images, are: Dupuy, Stéphane; Defrise, Laurence; Gaetano, Raffaele; Burnod, Perrine, 2019, "Antan... |
4 avr. 2023
Dupuy, Stéphane; Andriamanga, Andoniaina Valérie; Burnod, Perrine, 2023, "Antananarivo - Madagascar - build-up area evolutions map between 2003 - 2017 - 2022", https://doi.org/10.18167/DVN1/0EEDAG, CIRAD Dataverse, V1
This map shows the evolution of the built-up area of Antananarivo, capital of Madagascar, between 2003, 2017 and 2022. In ESRI shape vector format, this map results from the crossing of the following land use maps. Dupuy, Stéphane; Defrise, Laurence; Burnod, Perrine, 2019, "Antan... |
5 déc. 2022
Andriamanga, Andoniaina Valérie; Laurence, Defrise; Rasoamalala, Eloise; Burnod, Perrine, 2022, "Antananarivo - Madagascar - 2022, Land use reference spatial database", https://doi.org/10.18167/DVN1/CBJ0QX, CIRAD Dataverse, V2
This reference database in vector format (ESRI shape format) is organized according to a multi-level nomenclature. It is used to train an image classification algorithm in order to produce land cover maps of the Antananarivo metropolitan area (see dataverse sheets describing thes... |
2 déc. 2022
Dupuy, Stéphane; Andriamanga, Andoniaina Valérie; Gaetano, Raffaele; Burnod, Perrine, 2022, "Antananarivo - 2022 Land cover map", https://doi.org/10.18167/DVN1/RE1MDM, CIRAD Dataverse, V3
We publish two land cover maps of the city of Antananarivo produced with data acquired in 2022 using a methodology combining machine learning and object-based image analysis (OBIA). This work follows on from work that resulted in a map of the same area in 2017. The maps are produ... |
21 mars 2022
Lelong, Camille; Herimandimby, Hasina, 2022, "Very high spatial resolution land use / land cover map of a 84km2 part of the Vavatenina District, Analanjirofo Region, Madagascar, 2019", https://doi.org/10.18167/DVN1/KDNOV4, CIRAD Dataverse, V1
This map gives the spatial distribution of the main agricultural systems and land uses present in an area of study of landscape dynamics in Madagascar. It consists of an area of 84 square kilometers located at the West of Vavatenina town, in the Analanjirofo Region, on the North-... |
25 mars 2021
Gaetano, Raffaele; Dupuy, Stéphane; Lelong, Camille, 2021, "Nippes - Haïti - 2020, Land Cover Map at high spatial resolution", https://doi.org/10.18167/DVN1/ZAN2WN, CIRAD Dataverse, V1
The maps were produced with iota2 processing chain, developed in the framework of the activities of the "Land Use" Scientific Expertise Centre of the Theia Data and Services Center. They are distributed in raster TIFF format. IOTA2 produces land cover maps by classifying satellit... |