Results 11 to 20 of about 394 (155)
Revue Française de Photogrammétrie et de Télédétection, 2014 Cet article explore les potentialités des images satellites Pléiades pour l'étude multi-temporelle des marges fluviales fréquemment inondées afin d'évaluer leur diversité d'habitats.
Vincent Wawrzyniak +5 more
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Variational principlesvs. Spatial homogeneity
Il Nuovo Cimento B, 1994 In this paper the homogeneity ansatz is imposed at the level of Einstein's equations and/or at the level of the action. The commutativity of these operations, as far as the resulting equations are concerned, is reinvestigated. The main result obtained is that, when the restrictions imposed by the isometry group are supplemented by the restrictions on ...
CHRISTODOULAKIS, T, KORFIATIS, E
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Acta Amazonica, 2012 Gravity Recovery and Climate Experiment (GRACE) mission is dedicated to measuring temporal variations of the Earth's gravity field. In this study, the Stokes coefficients made available by Groupe de Recherche en Géodésie Spatiale (GRGS) at a 10-day ...
Flavio Guilherme Vaz de Almeida +6 more
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Knowledge and Management of Aquatic Ecosystems, 1995 Le texte décrit brièvement le développement de HABSCORE, une méthode d'évaluation de l'habitat basée sur une série de modèles statistiques empiriques qui relient l'abondance des salmonidés aux variables d'habitat observées.
BARNARD S., WYATT R. J., MILNER N. J.
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Systems approach towards surface water distribution in Kruger National Park, South Africa
Pachyderm, 2013 There was concerted effort, especially between the 1960s and 1990s, to increase the distribution of surface water in Kruger National Park (KNP). As a consequence, most of the park was within easy walking distance of a permanent water source for large ...
Izak Smit
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Estudios Geologicos, 2008 La cuvette synclinale de Kourimat comprenant deux sous bassins celui de Zeltène et d’Igrounzar, est située dans la partie orientale du bassin d’Essaouira, abrite un système aquifère carbonaté, représenté par les calcaires du Cénomanien et les calcaires ...
M. Bahir +3 more
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Revue Marocaine des Sciences Agronomiques et Vétérinaires, 2023 La gestion durable des terres est essentielle pour assurer la durabilité de l'agriculture et la résilience des écosystèmes face aux défis du changement climatique.
Amos NAMBIMA +5 more
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Nouvelles de la recherche : expertise sur les flux d’azote liés aux élevages
INRAE Productions Animales, 2012 Une expertise scientifique collective conduite par l’Inra (INRA 2012) pointe l’importance des flux d’azote liés aux activités d’élevage et identifie des leviers pour limiter la pression sur l’environnement.
C. DONNARS, P. CELLIER, J.L. PEYRAUD
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Geostatistics: Modelling spatial variation
, 2023 Geostatistics, which was developed originally for mining, is now widely used for prediction of soil conditions at unvisited sites and for mapping from sample survey data. The technique is based on models of spatial variation. Soil properties are treated as the outcomes of random spatially correlated processes, to which may be added fixed effects of ...
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Spatial variation in attributable risks [PDF]
Spatial and Spatio-temporal Epidemiology, 2015 The attributable risk (AR) measures the contribution of a particular risk factor to a disease, and allows estimation of disease rates specific to that risk. While previous studies consider variability in ARs over demographic categories, this paper considers the extent of spatial variability in ARs estimated from multilevel data with confounders both at
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