Search results for "Geographic Information Systems"
showing 10 items of 50 documents
Malaria resurgence risk in southern Europe: climate assessment in an historically endemic area of rice fields at the Mediterranean shore of Spain
2010
Abstract Background International travel and immigration have been related with an increase of imported malaria cases. This fact and climate change, prolonging the period favouring vector development, require an analysis of the malaria transmission resurgence risk in areas of southern Europe. Such a study is made for the first time in Spain. The Ebro Delta historically endemic area was selected due to its rice field landscape, the presence of only one vector, Anopheles atroparvus, with densities similar to those it presented when malaria was present, in a situation which pronouncedly differs from already assessed potential resurgence areas in other Mediterranean countries, such as France an…
LiDAR-derived DTM for historical landscape evaluation: the case study of the “Harvesting Memories” project (Castro Valley and Mt. Barraù, Corleone – …
2016
The project “Harvesting Memories” is focused on the analysis of the long-term transformation of the cultural landscape in a rural area of Central-Western Sicily (Castro Valley and Mt. Barraù, Corleone – Palermo). In order to quickly outline the history of the territory with an acceptable precision, our survey aimed at covering and sampling as much surface as possible, according to time and human resources available. To reach this goal, in the research design we opted for qualitative surveys. The choice of the fields to be surveyed was based on GIS analysis — our predictive model took in consideration slope, water sources and presence of points with high visibility in the landscape —, that h…
Earth-flow susceptibility assessment in the Marvello River basin (Sicily, Italy)
2014
In this study, statistical models of earth-flow susceptibility were prepared using logistic regression. The analyses were carried out in a small (51 km2) basin of western Sicily, where 1,376 earth-flows were identified. To predict the spatial distribution of the mapped landslides, outcropping lithology and seven topographic attributes were exploited as explanatory variables. Before calculating these variables, a reconstruction of the pre-failure topography was performed. To evaluate the predictive skill and the robustness of the models, two groups made of five random subsets of earth-flows and stable cells were prepared. Absences of the first group were selected as individual cells whereas …
Hydrological drivers of wetland vegetational biodiversity patterns within Everglades National Park, Florida
2009
The influence of hydrological dynamics on vegetational biodiversity and structuring of wetland environments is of growing interest as wetlands are modified by human alteration and the increasing threat from climate change. Hydrology has long been considered a driving force in shaping wetland communities as the frequency of inundation along with the duration and depth of flooding are key determinants of wetland structure. We attempt to link hydrological dynamics with vegetational distribution and species richness across Everglades National Park(ENP) using two publicly available datasets. The first, the Everglades Depth Estimation Network (EDEN),is a water-surface model which determines the m…
Viejos paisajes, nuevas tecnologías: una reconstrucción del paisaje Holoceno con gvSIG y sextante
2010
Con el objetivo de reconstruir el paisaje geomorfológico de finales del cuaternario y comienzos del Holoceno, se ha utilizado gvSIG y sextante para intentar establecer el paisaje a partir de los datos de campoarquelógicos y geomorfológicos recogidos durante una veintena de años en la cuenca media y alta del río Serpis. La evolución cuaternaria es la historia de un vaciado (erosión + denudación) de los valles del curso alto y medio del Serpis, con algunas interrupciones (fases de sedimentación). Testigos de dicha evolución son las terrazas fluviales adscritas por nosotros a diversos periodos del Cuaternario. La combinación de métodos tradicionales y el trabajo con el uso de herramientas SIG …
WebGIS Implementation for Dynamic Mapping and Visualization of Coastal Geospatial Data: A Case Study of BESS Project
2021
Within an E.U.-funded project, BESS (Pocket Beach Management and Remote Surveillance System), the notion of a geographic information system is an indispensable tool for managing the dynamics of georeferenced data and information for any form of territorial planning. This notion was further explored with the creation of a WebGIS portal that will allow local and regional stakeholders/authorities obtain an easy remote access tool to monitor the status of pocket beaches (PB) in the Maltese Archipelago and Sicily. In this paper, we provide a methodological approach for the implementation of a WebGIS necessary for very detailed dynamic mapping and visualization of geospatial coastal data
Co-Creation of Value for IT-Enabled Services : A Case of Geocaching
2013
This study explores how value is co-created in one particular IT-enabled service, geocaching. Consumer Information Systems (CIS) framework is used as a sensitizing framework to study experienced geocachers' (n=14) perceptions of what they value in geocaching. The following core values emerged that motivate people to co-create value in geocaching: challenging oneself and others, joy of success, learning, and social relations. The results reveal that geocaching is distinctively hedonic in nature, as people pursue happiness and utility via geocaching. Even support for the geocaching community was motivated by such values. In addition, the results reveal that the environment of geocaching and s…
Using GIS in archaeology: a few brand new approaches
2008
Association pour la Promotion des Recherches sur l'Age du Bronze et LWL-Archäologie für Westfalen de Westphalie
Lipas data 04/2023
2023
This data includes all sport facilities in Lipas database on 23.4.2023 and basic attribute information about the places. The data is classified and each sport facility has its own Lipas ID. The data is provided as Esri Shapefiles (points, routes and areas). Tämä aineisto sisältää kaikki Lipas-tietokannan liikuntapaikat ja aineistotiedot 23.4.2023. Data on luokiteltu, ja jokaiselle liikuntapaikalle on oma Lipas-ID. Data on tarjolla Esri Shapefile -muodossa (pisteet, reitit ja alueet).
Lipas-data 04/2022
2022
Tämä aineisto sisältää kaikki Lipas-tietokannan liikuntapaikat ja aineistotiedot 29.4.2022. Data on luokiteltu, ja jokaiselle liikuntapaikalle on oma Lipas-ID. Data on tarjolla Esri Shapefile -muodossa (pisteet, reitit ja alueet). This data includes all sport facilities in Lipas database on 29.4.2022 and basic attribute information about the places. The data is classified and each sport facility has its own Lipas ID. The data is provided as Esri Shapefiles (points, routes and areas) in Finnish, Swedish and English.