ESA
Analysis of the three Copernicus Digital Elevation Models (DEMs) (EEA-10, GLO-30 and GLO-90). Comparison of GLO-30 with the other global DEMs SRTM, ASTER GDEM and ALOS World 3D. Altimeter accuracy computed from LiDAR ICESat-1, ICESat-2 ("Terrain only" and "Terrain with canopy") and GEDI ("Lowest mode" and "Highest return") data. Statistical measure of the influence of land cover.
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Estimation of the quality of Copernicus DEMs
26 septembre 2020, par contact@digeetal.com -
Studies
24 décembre 2019, par contact@digeetal.comProduct evaluation allows space agencies to assess the quality of a product with respect to external references, to compare products between them and to quantify the suitability for use for different applications. The study carried out for ESA consisted of evaluating the accuracy of the heights provided by the SRTM, ASTER GDEM, ALOS World 3D and Copernicus DEMs DTMs compared to the ICESat LiDAR data. The DTMs were compared to each other by calculating the difference between two DTMs on the (…)
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REMA Biodiversity Information System (RBIS)
14 mars 2020, par contact@digeetal.comREMA / World Bank
Rwanda Environment Management Authority (REMA) - Supervision of the RBIS project from the tender to the development of the software, the organization of the data and the different trainings. -
Galerie SPOT World Heritage
26 septembre 2020, par contact@digeetal.comCNES
Intégration du catalogue des images gratuites SPOT-123/4/5 dans VtWeb. Développement de fonctions de rendu pseudo « couleurs naturelles ». Production d’une galerie de vues. -
Study of deforestation and mining activity in the territory of Bafwasende (DRC)
25 novembre 2019, par contact@digeetal.comTropenbos International
Monitoring of land cover changes over the last 20 years (2000, 2005, 2010, 2015 and 2019) using Landsat-7, Landsat-8 and Sentinel-2 data. Detection of illegal mining sites. -
Coastal erosion of the Mandji peninsula
14 mars 2020, par contact@digeetal.comTOTAL
Compilation and accurate geocoding of optical and radar data (satellite and aerial views) acquired over the last 35 years. Photo-interpretation of the coastline and development of tools to quantify erosion/accretion. -
Estimation de la qualité des MNEs Copernicus
26 septembre 2020, par contact@digeetal.comESA
Analyse des trois Modèles Numérique d’Elévation (MNE) Copernicus (EEA‑10, GLO‑30 et GLO‑90). Comparaison de GLO-30 avec les autres MNEs globaux SRTM, ASTER GDEM et ALOS World 3D. Précision altimétrique calculée à partir des données LiDAR ICESat-1, ICESat‑2 ("Terrain only" et "Terrain with canopy") et GEDI ("Lowest mode » et "Highest return"). Mesure statistique de l’influence de l’occupation du sol. -
MERIS Geometry Manual
14 mars 2020, par contact@digeetal.comESA-ESTEC
This manual accurately describes the shooting geometry, algorithms and programs to orthorectify MERIS Level 1B images from auxiliary elevation data or external DTM(s). -
Manuel des produits MERIS
30 septembre 2020, par contact@digeetal.comESA-ESRIN
Amélioration et correction du manuel en introduisant les questions des utilisateurs (FAQ), une description des applications et des produits de niveau 3. -
Study « Live-link to ESA Big Data »
14 mars 2020, par contact@digeetal.comESA
Investigation of the volume and accessibility of ESA’s major EO archives. Developed a prototype to access and process -DHuS Sentinel-1, -Envisat ASAR/MERIS, -Landsat-5/7 TM/ETM+ collections on the fly.