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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Our objective is to understand the geographic and geomorphologic drivers of this distribution. Agrandir Original png, 86k. In order to offset this limitation, field surveys were conducted in order to localise woody debris.

CERSAT – Cours de télédétection spatiale

A quick look at a large river. We present three examples.

First, we discuss the lower Ain valley. Group, London, April, poster unpublished. Recent progress in remote sensing is promising significant advances in fluvial sciences particularly in the study of small and medium rivers. The main objective is to study sedimentation and eutrophication processes responsible for the infilling of oxbow lakes. Le principe retenu repose sur le calcul de la semi-variance. NDVI longitudinal variation profile coefficient of variation calculated on ash and poplar data coverage on an image B.

Validation of this model is shown in fig. The bathymetry was measured with high-resolution imagery acquired from a Pixy UAS before and 1 year after the injection fig. Agrandir Original png, 65k. HunterBertrand Moulin et Mathieu Gagnage. 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.

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Celle-ci permet le calcul de la semi-variance 2D.

Cours de télédétection spatiale

This has allowed for a sediment budget of the reach to be established tab. This ground work was planned using QuickBird satellite data which has sufficiently high resolution to identify mature individual tree crowns.

Therefore, this data clearly localises the corus of the dam on vegetation health. Photogrammetric Record 16, Freshwater Biology 29, This new high-resolution data is available and better suited to the characterisation of intra-fluvial landscapes.

Clurs threshold conditions insure that the remotes sensing data if of sufficient spatial and temporal resolution to adequately characterise the river and the surrounding floodplain. This result illustrates the downstream structures for each dominant class and allows us to identify two principal domains: Table des illustrations Titre Fig.

Landsat 7 TM data is used to examine the impact of a series of hydropower dams on the growth rates of riparian vegetation. Agrandir Original png, 17k. However, the threshold conditions telederection be met if we add additional data layers. Using well-established methods Carbonneau et al.

Remote Sensing of Environment Applied Optics xe, Agrandir Original png, 29k. When satellite data is unsuitable, airborne images can be used fig. GIS and remote sensing analyses.

Furthermore, satellite data can now be complemented by catchment scale high resolution airborne orthorectified imagery often teledetectioj by national agencies such as the IGN. Despite this progress, few studies have applied satellite remote sensing to a detailed characterisation of fluvial forms owing to still insufficient spatial resolution.

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CU-SIGETA | Centre universitaire SIG et Teledetection au Burkina Faso

Characterisation of alluvial plains by remote sensing: Bel Hadj Ali A. Earth Surface Processes and Landforms 31, Over m 3 were mechanically injected ve the river. Geomorphology 55, In the case of river environments, only UAS have the low deployment cost and required flexibility.

Using both satellite data SPOT, Landsat and QuickBird and UAV data, the paper will examine a range of temporal and spatial scales from river reaches exceeding ten kilometres to smaller reaches where human impacts teledtection been diagnosed.

These maps have also allowed us to measure that the distance travelled by the sediment is between m to m thus demonstrating the use of imagery for the evaluation of river management works.

Etat de la bande active en tledetection As a result of these limitations, satellite remote sensing has only been applied to large rivers and their catchments Muller et al. Active teledegection in This demonstrates an important downstream trend where incised, upstream, sectors are clearly distinct from the downstream, un-incised, sectors. Bibliographie Bel Hadj Ali A.

Given the resolution of Landsat data it is not possible to detect individual forest units.

Earth Surface Processes and Landforms ,