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Par Collection Par Auteur Par Date Par Sujet Par Titre
  • Pollen and macrofossils from Wisconsinan interstadial sediments in Northeastern Georgia
  • C14 dating ; Climatic variation ; Georgia ; Palaeo-ecology ; Palaeo-environment ; Palynology ; Pollen analysis ; Quaternary ; United States ; Vegetation ; Wisconsinan
  • This paper presents results of pollen, plant macrofossil, and dating studies (TAMS and conventional) from a new site in the Piedmont region of northeastern Georgia. This study contributes information on vegetation of the region between 26,000
  • and 22,000 yr B.P., and provides a basis for reescamining interpretations from other southeastern sites. The AA. also use their data to address key problems of Pinus species identification from pollen and macrofossils and age-model uncertainties resulting
  • 1993
  • In 1963, open-pit mining at Tahawus, near Newcomb, in the central Adirondack Mountains, temporarily exposed two till sheets separated by 3.6 m of lake or pond clay. Pollen analysis suggests that the pond sediments contain an interglacial pollen
  • 1993
  • Climatic variation ; Costa Rica ; Fire ; Forest ; Human impact ; Lacustrine sediment ; Palaeo-ecology ; Palaeo-environment ; Palynology ; Pollen diagram ; Stratigraphy ; Vegetation
  • Pollen and charcoal analysis of a 5-6 m sediment core from Lago de las Morrenas provides evidence of postglacial vegetation and fire history in the highlands of the Cordillera de Talamanca, Costa Rica. The site is presently surrounded by treeless
  • páramo vegetation and apparently has been so since deglaciation about 10,000 yr B.P. Pollen changes may reflect the impact of prehistoric human activity or slight upslope migrations of forest taxa owing to climatic warming.
  • 1993
  • is complemented by studies of vegetation history, largely through pollen analysis.
  • 1993
  • Spatial analysis: perspectives and prospects
  • Geography and spatial analysis: evolution and outlook II
  • Expansion method ; Geographical thought ; Modelling ; Quantitative geography ; Research technique ; Social sciences ; Spatial analysis ; Theory
  • Spatial analysis is the geographical counterpart of trends, and the product of revolutions that encompass a wide time horizon. Spatial analysis and the quantitative revolution in geography have been concerned with the development and validation
  • of theory, and with the application of mathematical and stochastic formalisms. The A. describes the positive developments of spatial analysis and presents the technique and the paradigm of the expansion method.
  • 1993
  • Analysis of transportation networks in GIS for research in human geography
  • Geographical information system ; Methodology ; Spatial analysis ; Transport ; Transport network
  • The purpose of this study is to gain insight into the usefulness of techniques for network analysis in the context of socio-spatial analysis using GIS, and into the technical and practical aspects of the application of network analysis within GIS
  • 1993
  • Computer programming in a spatial analysis course
  • Computing ; Distribution of points ; Practical work ; Spatial analysis ; Spatial statistics ; Statistics ; Teaching of geography
  • The AA. share their experience in getting students to develop basic programming skills by providing them with exercises in descriptive statistics, nearest neighbor analysis, median center of a set of points, and networks as matrices. Ideas
  • 1993
  • Partial efficiencies in data envelopment analysis
  • Data analysis ; Decision ; Economic efficiency ; Factor of production ; Index ; Model ; Multiplicator ; Optimization
  • Cases where partial efficiency indices are required for different activities within the same decision making unit are discussed. An example encountered in a specific case of applying data envelopment analysis is analyzed. The problems faced when
  • 1993
  • Spatial analysis: development and outlook
  • American school ; Location ; Modelling ; Research ; Spatial analysis ; Theory
  • 1993
  • The experimental use of correspondence analysis to assess the relationship between soils and geomorphology in eastern Zambia
  • Cartography;Mapping ; Data analysis ; Geomorphology ; Methodology ; Soil ; Soil properties ; Soil science ; Taxonomy ; Zambia
  • This paper describes the experimental use of correspondence analysis to test the success of the geomorphic approach used. The survey involved the direct mapping of Soil Taxonomy subgroups and phases of subgroups within delineated geomorphic units
  • of a national geomorphic legend. The operation of correspondence analysis is described and correspondence plots presented.
  • 1993
  • Spatial analysis and the institutionalization of geography as a social science
  • Geography and spatial analysis: evolution and outlook II
  • Australia ; New Zealand ; Quantitative geography ; Research ; Social sciences ; Spatial analysis ; United States ; University
  • In the 1960s geography in the United States witnessed some dramatic changes that have been referred to as the quantitative revolution and the spatial analysis movement. These changes are interpreted as the main part of an effort to establish
  • 1993
  • Assessment of the physical environment from agricultural aspect by factor analysis
  • Applied geomorphology ; Ecology ; Environment ; Farming;Agriculture ; Hungary ; Land use ; Principal components analysis
  • In the present study factor analysis based on 12 components is used. In the knowledge of data structure the necessary factors were created by factor analysis. The analysis resulted in two main factors. This study is of double aim : theoretical
  • 1993
  • Digital analysis of satellite imagery : an art or a science ?
  • Classification ; Data processing ; Numerical analysis ; Photointerpretation ; Remote sensing ; Satellite imagery
  • 1993
  • Analysis of riverbank instability due to toe scour and lateral erosion
  • Technical and software bulletin 1993
  • This paper provides instruction in the use of the computer spreadsheet to undertake the calculations necessary to apply the Osman-Thorne bank stability analysis for steep, eroding riverbanks. The guide explains how to input the necessary parameters
  • 1993
  • Verification of a simple gravity technique for separation of particle size fractions suitable for mineral magnetic analysis
  • Technical and software bulletin 1993
  • Techniques for the separation of sediment samples into size fractions are reviewed and the use of repeated decantations to provide samples for mineral magnetic analysis is described. Results from a series of trials are presented and compared
  • 1993
  • Geography, spatial analysis, and social science
  • Epistemology ; Practice of geography ; Social sciences ; Social theory ; Spatial analysis ; United States
  • 1993
  • Human behavior in spatial analysis
  • Behaviour ; Location ; Spatial analysis ; Spatial behaviour ; Spatial choice ; United States
  • 1993
  • Fuzzy clustering analysis in water quality assessment: a case study for Dianshan Lake, Shanghai, China
  • China ; Cluster analysis ; Environment ; Index ; Lake ; Methodology ; Shanghai ; Water ; Water pollution ; Water quality
  • with time. Fuzzy clustering analysis may be used whenever a composite classification of water quality incorporing multiple parameters occurs.
  • 1993
  • Time series analysis using spectral techniques: oscillatory currents
  • Technical and software bulletin 1993
  • The use of time domain and frequency domain techniques in the analysis of geomorphological time series is discussed and the techniques of spectral analysis are introduced. An Excel worksheet is used to analyse wave-current data from Slapton Sands
  • 1993
  • The analysis of turbulence time series: statistical and correlation approaches using the MINITAB package
  • Technical and software bulletin 1993
  • The theoretical basis and use of statistical and correlation approaches for the analysis of turbulence time series are described. In particular, the analysis of data from high frequency current meter measurements using MINITAB is presented
  • 1993