inscription

Portail d'information géographique

Résultats de la recherche (33 résultats)

Complex multi-layer vegetation map as the basis for detailed geobotanical regionalization and characterization of the spatial structure of landscape (a case study from the Vistula River Valley, Poland)

This paper links vegetational microlandscapes distinguished on the basis of differentiation of actual vegetation with geobotanical sub-districts defined on the basis of differentiation of potential vegetation. For each of these microlandscapes
2006

Observations et conditions d'apparition des croissants de plage sur le littoral de la Mer d'Iroise

développement d'un nouveau système à l'étale de pleine mer postérieurement au pic d'énergie des vagues. L'analyse des conditions d'agitation suggère la présence d'une onde sub-harmonique ponctuellement stationnaire lors des étales de pleine mer contribuant au
2006

Terytorialne podstawy społeczne o charakterze wspólnym w mieście

to the city whose starting point is the concept of the territorial social system. The issues presented subsequently include : (a) basic territorial social structures in the city : sub-neighbourhood, neighbourhood and local community ; (b) basic internal
2006

Administrative regionalisation in Southeast Europe - Slow progress due to strong regional identities and cultural minorities ?

of regions (NUTS-2 to -4). Where results achieved to date are sub-optimal, the paper investigates the diverse reasons for this. - (IfL)
2006

Geoinstitute als ausserschulische Lernorte für den Geographieunterricht

In 2002, the earth research institutes of Kiel (Germany) organised the Kieler Geotag that covered 62 different activities offering all science sub disciplines. The majority of the students came within an out-of-door activity of their geography class
2006

Erosion and sediment yields as influenced by coupled eolian and fluvial processes : the Yellow River, China

Based on data from the middle Yellow River, a model of erosion and sediment yield is proposed to describe coupled eolian and fluvial processes in a transitional zone from arid to sub-humid climates, and to explain rapid erosion and a high sediment
2006

Past hydrological events reflected in the Holocene fluvial record of Europe

at both national and sub-national scales, and on catchments of different size, type and land-use history. The relative and varying roles of climate and land-use on river dynamics are considered and the value of the database for reconstructing past
2006

Controlling sediment at source : an evaluation of erosion control geotextiles

This paper presents one method to evaluate the effectiveness or ability of geotextiles in controlling soil erosion. Taking a geomorphological approach, the sub-processes of erosion (rainsplash and overland flow) are simulated separately
2006

Surface-climate attributes at Injisuthi Outpost, Drakensberg, and possible ramifications for weathering

Aerial and sub-aerial climatic data were collected from a station at 1920 m a.s.l. in the Injisuthi region in the South African Drakensberg. Sensors monitored air temperature, soil surface and rock surface temperature, for 2 rock types : basalt
2006

Spatial and temporal variability of Holocene temperature in the North Atlantic region

In order to assess spatial and temporal patterns of Holocene climate evolution across this region, the AA. collated quantitative paleotemperature records at sub-millennial resolution and synthesized their temporal variability using principal
2006

Relative contributions of runoff and sediment from sources within a road prism and implications for total sediment delivery

The specific objectives of this study are to quantify relative contributions of runoff and sediment from a range of sources within a defined road segment for selected rainfall events. A major sub-objective is to investigate variations in runoff
2006

Contribution de la télédétection multispectrale et des données de terrain à l'estimation du rôle de la fracturation dans la contamination de la nappe du Maastrichtien inférieur de la bordure occidentale de Sra-Ouertane. (Centre Ouest de la Tunisie)

de la fracturation sur le terrain. La représentation en bloc 3D de la fracturation leur a permis de conclure que la migration de l'eau en sub-surface se fait dans un premier temps vers l'Ouest, puis guidée par les joints de couches l'eau s'enfonce en
2006

Rethingking immigration and citizenship : new spaces of migrant transnationalism and belonging. Theme issue

citoyenne : le cas des immigrants de Hong Kong au Canada. 4. La Parade Hispanic Day au Canada, ou comment les immigrants hispaniques pratiquent la citoyenneté (sub)urbaine à Toronto. 5. Nous les Turcs ne sommes pas des Allemands : discours sur l'assimilation
2006