TY - Type of reference TI - Spatial Data Infrastructures (SDI) and observatories for the spatiotemporal and the environmental monitoring. AU - Eric Masson AU - Olivier Blanpain AB - This paper proposes a reflection on the relations between the observatories, the Spatial Data Infrastructures (SDI) and the user needs for the spatiotemporal and the environmental monitoring. After a reminder of the nature and objectives of the observatories and the SDIs, we analyze from case studies different observation systems, the availability of collected geographical data using various SDI and the adequacy of these infrastructures with the needs and means of the users. We will rely on multispectral (satellite and aerial) imagery collection and hydrometric data collection (streamflow measurements) to illustrate some of the numerical challenges observatories face in achieving their goals. DO - 10.21494/ISTE.OP.2020.0492 JF - Open Journal in Information Systems Engineering KW - Observatories, Spatial Data Infrastructures, Remote sensing, satellite imagery, Sentinel, Aerial imagery, Hydrometry, Hydrological risks, Observatoires, Infrastructures de Données Géographiques, Télédétection, Imagerie satellitaire, Sentinel, Imagerie aérienne, Hydrométrie, Risques hydrologiques, L1 - https://openscience.fr/IMG/pdf/iste_roisi20v1n1_6.pdf LA - en PB - ISTE OpenScience DA - 2020/03/10 SN - 2634-1468 TT - Observatoires et Infrastructures de Données Géographiques (IDG) pour le suivi spatiotemporel et environnemental des territoires. UR - https://openscience.fr/Spatial-Data-Infrastructures-SDI-and-observatories-for-the-spatiotemporal-and IS - Issue 1 VL - 1 ER -