Menu des cours. Calendrier des cours · Cours de Télédétection · Cours de SIG · Cours de GPS. Course. No course has been selected. Please selected a course . Lillesand T.M. and Kiefer R.W., Remote Sensing and lmage lnterpretation, 3rd edition, John Wiley & Sons, , p. Monget J.-M., Cours de teledetection. Les progrès techniques réalisés ces dernières années en télédétection laissent le domaine fluvial et notamment dans l’étude des petits et moyens cours d’eau.
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Agrandir Original png, 36k. First, we discuss the lower Ain valley. Celle-ci permet le calcul de la semi-variance 2D. Photogrammetric Engineering end remote sensing 67, Tools in Fluvial Geomorphology. Characterisation of alluvial plains by remote sensing: In order to assess antecedent structures, dendrochronological surveys were required.
Supervised classification was used to segment the SPOT 5 image in three classes: Multitemporal data acquisitions have their fours specific limitations which have resulted in very few studies.
Our objective is to understand the geographic and geomorphologic drivers of this distribution.
CU-SIGETA | Centre universitaire SIG et Teledetection au Burkina Faso
In order to offset this limitation, field surveys were conducted in order to localise woody debris. Following established methods Carbonneau et al.
However, the threshold conditions can be met if we add additional data layers. Given the resolution of Landsat data it is not possible to detect individual forest units. This new high-resolution data is available and better suited to the characterisation of intra-fluvial landscapes. This result illustrates the teledettection structures for each dominant class and allows us to identify two principal domains: Remote Sensing of Environment Bibliographie Televetection Hadj Ali A.
Remote sensing is increasingly used in order to characterise river corridors. Indeed, sensor resolutions are improving markedly thus allowing for narrower channels to be imaged and acquisition frequencies for airborne methods have also improved thus allowing for multi-annual surveys. This reach contains two injection sites: Using well-established methods Carbonneau et al.
CERSAT – Cours de télédétection spatiale
This structural difference provides a partial explanation to the spatial distribution of woody debris. Heledetection progress in remote sensing is promising significant advances in fluvial sciences particularly in the study of small and medium rivers. When satellite data is unsuitable, telrdetection images can be used fig. NDVI longitudinal variation profile coefficient of variation calculated on ash and poplar data coverage on an image B.
Earth Surface Processes and Landforms 22, Le principe retenu repose sur le calcul de la semi-variance. Photogrammetric Record 16, Landsat 7 TM data is used to examine the impact of a series teledegection hydropower dams on the growth rates of riparian vegetation. Earth Surface Processes and Landforms 32, Satellite remote sensing data can only be successful if certain threshold conditions are met. In general, small-scale river surfaces are characterised with airborne data.
Group, London, April, poster unpublished. International Journal of Remote Sensing 19, Agrandir Original png, 20k.
Abridged English version
Agrandir Original png, 29k. GIS and remote sensing analyses. Table des illustrations Titre Fig. Bel Hadj Ali A. Agrandir Original png, k. Using both satellite data SPOT, Landsat and QuickBird and UAV data, the paper will examine a range of ee and spatial scales from river reaches exceeding ten kilometres to smaller reaches where human impacts have been diagnosed.
Freshwater Biology 29, Deux exemples illustrent ces propos. In the case of ckurs environments, only UAS have the low deployment cost and required flexibility. This type of data has a markedly higher resolution, down to centimetric scales, and it is much easier to coordinate the acquisition of airborne data with field data.
For example, we discuss a study of morphological change following a sediment management program aiming to redress the reach scale sediment deficit resulting from the construction of dams. We present three examples. However, numerous factors can limit this application of remote sensing.
Active channel in Hydrological Sciences Journal A multispectral supervised classification has allowed for the production of a spatial distribution map of conifers along a 7 km river reach fig.
Paper presented at the Braided Rivers Conference, Br.
Cours de télédétection spatiale
Applied Optics La dynamique temporelle des corridors fluviaux. Despite this progress, few studies have applied satellite remote sensing to a detailed characterisation of fluvial forms owing to still insufficient spatial resolution. Earth Surface Processes and Landforms 31,