inscription
PORTAIL D'INFORMATION GÉOGRAPHIQUE

Résultats de la recherche (1817 résultats)

Affinez votre recherche

Par Collection Par Auteur Par Date Par Sujet Par Titre
  • Before and after the vuvuzela : identity, image and mega-events in South Africa, China and Brazil
  • Brazil ; China ; Cultural studies ; Event ; Football ; Identity ; Image ; Motivation ; South Africa
  • Focusing on mega events in South Africa, China and Brazil, this paper contrasts and critiques the associated image and identity opportunities and risks, as well as comparative motivations for hosting such events. In the context of an increasing
  • number of mega events being hosted in the BRICS (Brazil, Russia, India, China and South Africa), the paper provides broader continuity and introduces a broader research agenda. - (AJC)
  • Reassembling the event : Estonia's Bronze Night
  • Cultural studies ; Estonia ; Event ; Local authority ; Monument ; Russians ; Tallinn ; Territorialisation ; Urban social movement
  • At the end of April 2007, an event unfolded in Tallinn, that came to be called the Bronze Night : a soviet-era monument was removed. Following Deleuze's philosophy of the event, the A. seeks to learn from the B.N. as an event by using an in-the-act
  • Correlation of Quaternary events in Canada in Glaciations quaternaires dans l'Hémisphère Nord.
  • The role of catastrophic geomorphic events in central Appalachian landscape evolution in Appalachian geomorphology.
  • In the first part, the AA. consider some examples of historic catastrophic flood and landslide events to generalize about the spatial and temporal controls on present-day catastrophic events. In the second part, they consider selected examples
  • of the surficial stratigraphic record to evaluate the long-term effect of catastrophic events on the Appalachian landscape.
  • Towards an evental geography
  • The paper begins with a problem, which is how to account for objects, worlds, and events outside of human consciousness or in-themselves. It answers by constructing an evental geography from the ontologies of Martin Heidegger, A. Badiou, and G
  • . Harman. A ‘geo-event’ names the transformation of a world – from galaxies to nation states to ecosystems – by inexistent objects and the forces they unleash. The paper is situated at the busy crossroads of (object-oriented) philosophy, non
  • Analysis and characteristics of pluviometric events in the Germanasca Valley (Italian Western Alps)
  • Climatic data ; Climatic event ; Forecast ; Italy ; Meteorology ; Piemonte ; Pluviometry ; Precipitation ; Statistical analysis ; Twentieth Century
  • Sets of historic rainfall data (1913-2003) from four rain gauge stains in the Germanasca Valley were examined to identify the characteristic features of major, potentially dangerous rainfall events. In this study, a pluviometric event was considered
  • As many as 44 shell samples from deposits within end moraines and from glaciomarine deposits related to end moraines were used to radiocarbon date 5 morainal zones in Nordland. Zone A, Vega-Skarpnes Event, 12,300200 years B.P. Zone B, Tjotta-Tromso
  • -Lyngen Event, 10,700300 years B.P. Zone C, Nordli-Skjerstad Event, 19100200 years B.P. Zone D, Misvaer-Finneid Event, 9550200 years B.P. Zone E., Rombak-Olfjell Event, 9300200 years B.P.
  • Geomorphic effects of the extreme rainfall event of 20-21 July, 2004 in the Latnjavagge catchment, northern Swedish Lapland
  • Erosion ; Exceptional event ; Lapland ; Mass movement ; Mudflow ; Precipitation ; Sediment budget ; Suspended load ; Sweden ; Watershed
  • Mass transfers triggered by a rare rainfall event on 20-21 July, 2004, in the Latnjavagge catchment in the higher Abisko mountain region, are quantified and analysed in direct comparison with mean annual mass transfers in this drainage basin
  • . A reliable estimation of the recurrence intervals of such rare events is especially problematic. The general problem of defining an adequate length of process monitoring programmes is pointed out.
  • The extremeness of extreme events
  • Extreme events and the transformation of landscape
  • Concept ; Drainage network ; Exceptional event ; Human impact ; Man-environment relations ; Natural hazards ; Plant cover ; Precipitation ; Rill wash ; Soil erosion ; Watershed
  • of a) the interaction between extreme events and human activity; b) developments in hillslope hydrology, and c) emergences of our understanding of non-linear behaviour.
  • A new approach for linking event-based upland sediment sources to downstream suspended sediment transport
  • This approach is based on a new concept of spatial scale, sub-watershed area (SWA), defined as a sub-watershed within which all eroded soils are transported out without deposition during a hydrological event. Using (rainfall) event data collected
  • between July and November, 2007 from several SWAs of the studied watershed, the AA. developed an empirical equation that has one independent variable, mean SWA slope. This equation was then used to determine event-averaged unit soil erosion rate for all
  • SWAs in the studied watershed and calculate event-averaged gross erosion Eea. Next, they developed 2 linear sediment rating curves (SRCs) for small and big events based on the event data obtained at the watershed outlet. They revealed the event dynamic
  • processes connecting sediment sources and downstream sediment transport. During small events, sediment transport in streams was at capacity and dominated by the deposition process, whereas during big events, it was below capacity and controlled
  • Extreme event in the last 200 years in the Upper Vistula Basin : their palaeohydrological implications
  • Exceptional event ; Hydrology ; Palaeogeography ; Palaeohydrology ; Poland ; Precipitation ; Upper valley ; Wisła
  • To provide characteristics of present-day extreme events which may serve as a key to better recognition of past hydrological changes, the upper Vistula basin was taken as an example. The observations are mainly related to last 100-150 years
  • of events. Only first half of 19-th century, the last phase of the Little Ice Age shows higher frequency of extreme events. This study shows also a great regional diversity in effects of extreme events. Therefore all recontruction of the humid phases during
  • A regional analysis of the effects of largest events on soil erosion
  • Cultivated land ; Eastern United States ; Extreme event ; Precipitation ; Regional analysis ; Soil erosion ; Spatial analysis ; Time series ; United States of America
  • Alternatively, the AA. define extreme events as the largest events sorted by rank, whatever their absolute magnitude. The new approach applied to soil erosion is that, whatever the magnitude of soil eroded, erosion is a time compressed process
  • and the percentage contribution to total soil erosion by the few largest events (regardless of their magnitude) is negatively related to the total number of daily soil erosion events recorded. The AA. present here a geographical analysis of the effects of largest
  • daily event on soil erosion by comparing 594 erosion plots located in agricultural fields under various climatic temperate conditions across the central-east of the USA. It is shown that the n-largest events contribution not differ between regions of USA
  • . Time compression pattern is expressed by an empirical power law. Erosion research validation require a minimum number of daily events.
  • Heidegger, event and the ontological politics of the site
  • Concept ; Event ; Ontology ; Place ; Space ; Space time ; Theory
  • This paper scrutinises the possibilities Martin Heidegger’s notion of ‘the event of revealing’ poses for spatial theory. It shows how his work on ‘the event’ and its ‘fourfold’ constitution (between earth, sky, mortals and divinities) affords
  • a spatial understanding of ontology as a site revealed around the assemblage of things. Through such post-human understanding of the event, it becomes possible to think spatiality, not just in accordance with the influence Heidegger’s thought could have
  • Mega-events and housing costs : raising the rent while raising the roof ?
  • Event ; Housing ; Housing cost ; Housing market ; Induced effect ; Land value ; Model ; Rented market ; United States of America
  • The paper examines the relationship between hosting mega-events and rental housing prices in host cities. An analysis of rental prices in a panel of American cities from 1993 to 2005 fails to find a consistent impact of mega-events on rental prices
  • . Mega-events tend to affect rental prices outside of the center city in a very different manner than in the city core.
  • The disruption of Grassy Creek : implications concerning catastrophic events and thresholds
  • Two catastrophic events, occurring simultaneously in the valley of Little Grassy Creek, allow for an examination of the threshold concept in geomorphology. Movement of debris associated with failure and sliding of valley-side material, caused
  • damming and avulsion of Little Cassy Creek. Slope and river disruptions were linked because the effect of one event (slope failure) was the cause of the second event (fluvial avulsion). Criteria needed to employ thresholds to explain geomorphic events
  • Climatological classification of severe wind-driven rain events affecting the southern United States
  • This paper follows recent studies of wind-driven rain (WDR), and statistically defines a severe WDR event. The research suggests a classification for severe WDR events by association with larger scale weather systems. The study incorporates data
  • for the period 1971 to 1995 and, from these data, the analysis reveals that severe WDR events are confined mainly to the southern United States and occur most frequently in the cold and transition seasons. Extratropical cyclones are the most common synoptic-scale
  • weather systems associated with severe WDR events. The cyclone types are referred to as Colorado Lows (CLs), Gulf Lows (GLS) and Texas Lows (TLs).
  • Extreme events in the context of late Quaternary environmental change
  • Extreme events and the transformation of landscape
  • Climatic variation ; Exceptional event ; Fluvial processes ; Geomorphology ; Human impact ; Impact ; Landscape ; Landslide ; Plant canopy ; Quaternary ; Slope gradient
  • The significance of extreme events in landform change is discussed in the context of the late Quaternary. Millennia-scale cycles of climate change are less than the relaxation times of most landform systems and have led to widespread disequilibrium
  • time and research needs to establish the role of individual events within this timescale of enquiry.
  • Krakatau revisited : the course of events and interpretation of the 1883 eruption
  • This paper reviews the eruption sequence and reexamines some of the more problematic and challenging volcanological aspects of the Krakatau event. Various hypotheses about the cause of the tsunamis and explosions are reviewed and it is concluded
  • significant impact on organism range and success. The extreme-event approach suggests that a few unique events have the greatest impact. A review of the literature seems to indicate a movement of bioclimatologists toward the extreme-event approach.
  • Diurnal variations of rainfall events by synoptic type in Natal
  • Climatological records of hourly rainfall at recording stations in Natal describe the diurnal variation of rainfall events derived from a number of different rainfall-producting systems. These are then identified. - (AJC)