inscription
Portail d'information géographique

Résultats de la recherche (314 résultats)

Affinez votre recherche

Par Collection Par Auteur Par Date Par Sujet Par Titre
  • Bog ; France ; Geochemistry ; Holocene ; Human impact ; Humid environment ; Land clearing ; Massif Central ; Multi-criteria analysis ; Pollen analysis
  • 2001
  • Alaska ; Biostratigraphy ; Gulf ; Holocene ; Isotope analysis ; Marine quaternary ; Marine sediment ; North Pacific Ocean ; Oxygen 18 ; Pacific Region ; Palaeo-ecology ; Palaeo-environment ; Palynology ; Pleistocene ; Surface temperature
  • Présentation des résultats de l'analyse palynologique réalisée sur une séquence sédimentaire de 29 mètres prélevée au site OPD 887 et couvrant les derniers 430 000 ans, soit les stades isotopiques 12 à 1. Les assemblages de pollen et de dinokystes
  • 2001
  • Geomorphological analysis of the Stožecká hornatina (Mountains)
  • A complex geomorphological analysis of the relief of Stožecká hornatina Mts (Šumava). The structural relief features and a high number of cryogenous forms give to that territory an original geomorphological character, which is only seldom
  • 2001
  • Location-specific cumulative distribution function (LSCDF) : an alternative to spatial correlation analysis
  • Correlation ; Distance ; Distribution of points ; Population ; Spatial aggregation ; Spatial analysis ; Spatial distribution ; Statistics ; United States of America
  • The paper presents an approach for spatial correlation analysis for count variables by comparing their cumulative spatial distributions. Using the concept of LSCDF in classical statistics, it shows that location-specific and its associated K-S-like
  • 2001
  • GRADISTAT : a grain size distribution and statistics package for the analysis of unconsolidated sediments
  • Grain size analysis is an essential tool for classifying sedimentary environments. A computer program called GRADISTAT has been written for the rapid analysis of grain size statistics from any of the standard measuring techniques, such as sieving
  • 2001
  • Application of shrubs for dendrogeomorphological analysis to reconstruct spatial and temporal landslide movemen patterns. A preliminary study
  • A detailed dendrogeomorphological landslide investigation has been carried out at the Tertiary escarpment in northwest Rheinhessen, Germany. For the first time, analysis of shrub growth curves using optical and statistical techniques has
  • demonstrated the potential of this type of vegetation for dendrogeomorphological analysis. Indications of known dates of landslide occurence (1981/82) have been found in growth rings and showed the potential of shrubs for this type of analysis. In addition
  • 2001
  • Accessibility ; Congestion ; Cost-benefit analysis ; Economic efficiency ; Labour market ; Labour productivity ; Production fonction ; United States of America ; Urban economy ; Urban theory ; Urbanization
  • The influences of urban form and transport infrastructure on economic performance show up in several contemporary policy debates. The paper probes these relationships using two scales of analysis. At the macro scale, an econometric analysis using
  • data across 47 US metropolitan areas reveals that employment densities and urban primacy are positively associated with worker productivity, suggesting the presence of agglomeration economies. An intrametropolitan analysis using data on sub-districts
  • of the San Francisco Bay Area reinforces the finding of the macro-scale analysis.
  • 2001
  • Resource-based industrialisation strategies : a comparative analysis of the South African and international experience
  • This paper undertakes a comparative analysis of resource-based industrialisation in South Africa with international experience. The role of mineral resources is highlighted in the economic and industrial development of South Africa. - (AJC)
  • 2001
  • Logistic analysis of channel pattern thresholds : meandering, braiding, and incising
  • Braided channel ; Channel geometry ; Fluvial erosion ; Longitudinal section ; Meander ; Model ; Regression analysis ; Stream ; Threshold
  • A large and geographically diverse data set consisting of meandering, braiding, incising, and post-incision equilibrium streams was used in conjunction with logistic regression analysis to develop a probabilistic approach to predicting thresholds
  • 2001
  • A GIS - environmental justice analysis of particulate air pollution in Hamilton, Canada
  • robust to the method of statistical analysis. Low income and unemployment are also significant predictors of exposure, although results vary depending on the method of analysis. This result emphasizes the value of GIS and spatial statistical techniques
  • 2001
  • Beijing ; China ; Correlation ; Discriminant analysis ; Humid environment ; Hydrochemistry ; Principal components analysis ; Salt marsh
  • . This analysis is an effective way to explain the differences of element source, movement and accumulation under special conditions. This paper clarifies the movement laws of saline-alkaline components in the region, and establishes a set of a four -class
  • discriminant for the analysis of salt marsh water bodies. And the goal is to develop and utilize the water resources in this region reasonably by means of controlling and preventing regional salinization.
  • 2001
  • Analysis of GPS data collected on the Greenland ice sheet
  • 2001
  • Czech Republic ; Peripheral region ; Region ; Statistical analysis
  • The possibilities of using statistical analysis for Czech peripheral regions are examinated. The types of traditional peripheral areas with a low settlement density and prevailing agricultural structure are evaluated. A definition of peripheral
  • 2001
  • Atlantic Ocean ; Morphometry ; Oceanic ridge ; Rift ; Spectral analysis ; Statistical analysis ; Tectonics ; Topography
  • 2001
  • Cost-benefit analysis of local land use allocation decisions
  • Cost-benefit analysis ; Decision ; Job creation ; Labour market ; Land market ; Land use ; Local development ; Spatial allocation ; Urban economy ; Urban policy
  • 2001
  • Economic interdependence within the Chicago metropolitan area : a Miyazawa analysis
  • Chicago ; Community ; Economic flow ; Illinois ; Input-output model ; Matrix analysis ; Methodology ; Multiplicator ; Spatial differentiation ; United States of America ; Urban economy ; Urban region
  • 2001
  • Spatiotemporal analysis of surface changes by tessellations
  • Graph ; Honshu ; Japan ; Methodology ; Retail trade ; Space time ; Spatial analysis ; Spatial dynamics ; Spatial structure ; Tokyo ; Topology ; Urban area ; Urban district
  • 2001
  • Fluvial geomorphological analysis of the recruitment of large woody debris in the Yalobusha River network, Central Mississippi, USA
  • significance of the LWD recruitment in terms of debris dam formation. From this basis, rational management decisions may be taken. The overall accuracy of the model is largely dependent on 3 factors, namely : bank-stability analysis, knickpoint dimensions
  • 2001
  • The study is a comparative analysis of agriculture in Poland and Bulgaria during the period of transition (198-1999). Subject to the analysis were changes which occurred in agriculture and its environment in both countries as a result of the change
  • of the political system. Tha analysis comprises issues related to social and ownership changes, demographic problems of rural areas, means of agricultural production, production outputs, export of plant, meat and dairy products. Changes which take place
  • 2001
  • Regional earnings inequality in Great Britain : a decomposition analysis
  • Age group ; Analysis of variance ; Gender difference ; Great Britain ; Index ; Living standard ; Regional disparities ; United Kingdom ; Wage inequality
  • 2001