Search results for "Spatial"

Monitoring water and carbon fluxes at fine spatial scales using HyspIRI-like measurements

2012

Remotely sensed observations in the visible to the shortwave infrared (VSWIR) and thermal infrared (TIR) regions of the electromagnetic spectrum can be used synergistically to provide valuable products of land surface properties for reliable assessments of carbon and water fluxes. The high spatial, spectral and temporal resolution VSWIR and TIR observations provided by the proposed Hyperspectral - InfraRed (HyspIRI) mission will enable a new era of global agricultural monitoring, critical for addressing growing issues of food insecurity. To enable predictions at fine spatial resolution (<100m), modeling efforts must rely on a combination of high-frequency temporal and highresolution spa…

Local heterogeneities in population growth and decline. A spatial analysis for Italian municipalities

2021

Spatially unequal demographic dynamics lead to a progressive fragility of a territory and its socio-economic system. In Italy, municipalities in demographic malaise tend to be increasingly small in size and peripheral in location, and their local spatial aggregation increased over time. A spatial approach is here proposed to investigate the dynamics across time and space of the population variations in Italian municipalities. Global and local spatial autocorrelation analysis and several models of regression were run using as study variable the average growth rates at municipality level. The spatial autocorrelation of the study variable is quite high and stable over time. The regression resu…

Urban growth (1956-2006) and soil degradation by soil sealing in the municipality of Valencia

2011

15 páginas, 6 figuras, 2 tablas.

The nature and impacts of environmental spillovers on housing prices: A spatial hedonic analysis

2014

Abstract: This paper investigates the spatial dimension of the environmental effects. We use recent advances in spatial econometrics to show that hedonic equations produce estimates to be differently interpreted as implicit prices according to spatial models. In particularly, the i mplicit price of housing attribute combines a feedback effect and a propagation effect and may be interpreted in terms of local or global spillovers. We drive an empirical study in the estuary of the Loire, a rural and urban area well occupied by various natural areas and more artificialized ones. We study various spatial interaction patterns to test the robustness of our estimates and we find that spatial depend…

The asymmetric Path-conflation pattern of GO and COME verbs in Aymara

2019

This paper investigates the basic motion verbs sara ‘go’ and juta ‘come’ in Aymara, an indigenous language of the Andes, within the framework of Talmy’s lexical typology (Talmy 2000). In a crosslinguistic perspective, ‘come’ and ‘go’ are assumed to be deictically complementary and have been represented as a kind of Path-conflating verbs, i.e. verbs that include the deictic component of Path in their lexical semantics, which is respectively the direction ‘toward the speaker’ vs that ‘not toward the speaker’. Data from Aymara show in fact that ‘come’ and ‘go’ exhibit an asymmetrical Path-conflation pattern: ‘come’ does inherently entail deictic motion toward the speaker, whereas ‘go’ indicate…

Une analyse exploratoire des disparités régionales dans l'Europe élargie

2005

http://www.regionetdeveloppement.u-3mrs.fr/; National audience; L'objectif de cet article est d'analyser les inégalités régionales dans l'Union Européenne élargie à l'aide de l'Analyse Exploratoire des Données Spatiales appliquée aux PIB par tête des 258 régions de l'Europe des 27 sur la période 1995-2000. Les résultats montrent l'existence d'une forte autocorrélation spatiale globale et locale ainsi qu'une forte hétérogénéité dans la distribution des richesses. Ils montrent également un changement de polarisation, puisque l'élargissement conduit à un schéma de polarisation Nord-Ouest - Est à la place du schéma Nord-Sud traditionnellement mis en évidence dans la littérature. Finalement, cet…

Du producteur à l'utilisateur: identification des trajectoires d'appropriation des données géographiques.

2009

To define, on a non technician face, the life cycle of geographic information, "from captor to decisions" we need, in a actor network theory perspective, to understand the process "from producer to user". In order to give an answer, we choose to study the spatial data appropriation process. This process opens the analysis of how data can be used by a group that has not produced the data itself, as well as in a multi-actor context. Distributed cognition theory offers a framework to understand data as a cognitive and collaborative artefact. Eight exploratory case studies help to identify typical appropriation trajectories, factors and socio-cognitive processes. This article offers a different…

Restoring ecosystem structure and functions : results from Sphagnum peatlands degraded by forestry drainage

2014

La citoyenneté à l’épreuve des divergences sociales et spatiales

2017

International audience

The Diversification of Sicilian Farms: A Way to Sustainable Rural Development

2021

Rural areas still suffer from a lack of sustainable development, and the diversification of farms may be a step in the right direction. The paper provides a detailed picture of the diversification of Sicilian farms into tourism services. Specifically, we propose a simple indicator of localization intensity of agritourism farms and explore their spatial distribution at municipality level. Our study highlights that Sicilian farms rarely diversify into tourism services, despite being situated in attractive areas. That said, some significant spatial clusters of municipalities where agritourism farms are highly concentrated do emerge from the study.