Search results for "time-space"
showing 7 items of 7 documents
The time-space dynamics of agricultural areas from Antiquity to modern times (chapter 2)
2012
International audience; This paper presents the analytical procedure developed within Workgroup 1 of the Archaedyn project. It examines the time-space dynamics of agrarian activities readable from the ancient field systems preserved by forest cover, and from off-site material interpreted as the remains of manuring practices. Using GIS and spatial statistics tools, we studied the structuring, intensity, durability and mobility of agrarian activities on different time scales.
High-speed rail in China and its territorial impact
2011
International audience; China has started a massive development of high-speed rail projects, as part of a stimulus package, to ease congestion on tracks and in the air, and to limit emission of greenhouse gases. It will affect the geography of China and on its cities. Experiences gathered in France by researchers of the " TGV effect " are put forward as questions to foster research on the changes induced by high-speed rail. A " shrinking of China " has begun. The 505 km Zhengzhou to Xi'an line has cut the travel time between these two cities from 6 to 2 hours. The 1069 km Wuguang line has slashed from 10,5 hours to 3 the travel time between Wuhan and Guangzhou. By making it easier to move p…
Il disegno campionario e il piano di rilevazione nell’indagine sui turisti incoming in partenza dalla Sicilia e dalla Sardegna: il campionamento spaz…
2011
This paper aims to describe the sample design and the survey plan used in the survey on incoming tourism in Sicily and Sardinia. The specific goals of the survey are related: a) to the measurement and the analysis of un-observed tourism; b) to the evaluation of tourist mobility within the two Islands; c) to the analysis of some key-factors related to the holyday experience of tourists. It is well known that regional tourists are very difficult-to-reach populations and the problems in sampling human mobile populations derive from the absence of a list of units component units (frame). Despite these issues are well-known in literature under the broader categories of hard to reach, or hidden, …
Border surveys and Time Location Sampling (TLS): an application on incoming tourism in Sicily
2012
The increasing need of reliable and detailed information at a regional and subregional level poses some challenges related with the measurement of tourists flows, for tourism destination management, planning and promotion purposes,. The aim of this work is twofold; first, it intends to analyse and discuss the main features and limits of the official border surveys conducted in the majority of world’s countries, within the framework of Time Location Sampling (TLS) design; second, it suggests the implementation of TLS design at a subnational level, by presenting the sampling design of the survey on incoming tourists in Sicily, carried out between 2009-2010, aimed at estimating the unobserved …
Models and tools for territorial dynamic studies (chapter 1)
2012
As part of the ArchaeDyn project, a workgroup was formed to coordinate the development, implementation and application of methods and tools for spatial analysis. The workgroup's activities were directed at various problems. The first was to construct a grid common to all the workgroups and to homogenize the study areas used by the different workgroups in their databases. The 'confidence maps' method was suggested for assessing the quality and quantity of information inventoried in the databases. Confidence maps are produced from representation and reliability maps by simple map algebra and they can be considered as 'masks' for interpreting spatial analysis results. Finally, the research tea…
Landsat and Local Land Surface Temperatures in a Heterogeneous Terrain Compared to MODIS Values
2016
Land Surface Temperature (LST) as provided by remote sensing onboard satellites is a key parameter for a number of applications in Earth System studies, such as numerical modelling or regional estimation of surface energy and water fluxes. In the case of Moderate Resolution Imaging Spectroradiometer (MODIS) onboard Terra or Aqua, pixels have resolutions near 1 km 2 , LST values being an average of the real subpixel variability of LST, which can be significant for heterogeneous terrain. Here, we use Landsat 7 LST decametre-scale fields to evaluate the temporal and spatial variability at the kilometre scale and compare the resulting average values to those provided by MODIS for the same obser…
Análisis del comportamiento espacio-temporal intradestino mediante GPS : Una aproximación de los visitantes independientes de crucero en la ciudad de…
2020
El presente trabajo tiene como objetivo profundizar en el análisis de los patrones de comportamiento espacio-temporal de los visitantes en destino, una escala de trabajo insuficientemente desarrollada. La investigación aplica un enfoque multimétodo, que combina el uso de GPS con una encuesta, al conocimiento de los patrones espaciales de los cruceristas que visitan la ciudad de Valencia de manera independiente. Los resultados obtenidos evidencian la polarización de los flujos en el centro histórico de la ciudad, dentro de un patrón mayoritario de único nodo, una dinámica que conviene gestionar adecuadamente para prevenir la congestión y poner en valor otros atractivos urbanos. La redistribu…