Time-space approaches developed for the study of human spatial behavior may be extended for the study of regional spatial organization. Though the two scales are different in terms of their temporal dimension, they also share a few common aspects
. The time-space approach for the regional scale may be defined using the same languages as used for the human scale. The time-space approach is useful particularly for the study urban growth.
Analysing space-time behaviour : new approaches to old problems
Behaviour ; Logit model ; Space time ; Spatial choice ; Time geography ; Utility fonction
, but is now the dominant approach among civil engineers in transportation research. The paper critically reviews these developments. It briefly sommarizes recent developments in space-time research, focusing on empirical and modelling studies. Potential
The notion that activity-travel patterns are highly constrained has been frequently used in analytical studies and models of time-space behaviour. The popularity of this field of research lost most of its momentum in geography in the 1990s
strengths and weakness of the various modelling approaches are discussed.
The analysis of turbulence time series: statistical and correlation approaches using the MINITAB package
Correlation ; Geophysics ; Hydrodynamics ; Model ; Runoff ; Sediment transport ; Statistics ; Time series ; Turbulence
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
A spatial-temporal modeling approach to reconstructing land-cover change trajectories from multi-temporal satellite imagery
Classification ; Data processing ; Environmental change ; LANDSAT ; Land utilisation ; Man-environment relations ; Markov model ; Model ; Ohio ; Remote sensing ; Satellite imagery ; Space time ; Time series ; United States of America
A spatial-temporal modeling approach is developed here for reconstructing land-cover change trajectories from time series of satellite images. The change detection method represents an enhancement to the conventional post-classification comparison
. The key innovation lies in the use of Markov random field theory to model spatial-temporal contextual information explicitly in the classification of time series images. When evaluated using a time series of 7 Landsat images in a case study of southeast
Ohio, the spatial-temporal modeling approach yielded significantly more accurate and consistent trajectories of land-cover change than conventional non-contextual approaches. These results also highlight the utility of spatial-temporal contextual
information in improving the accuracy and consistency of land-cover classifications across space and time.
Information technology in real-time for monitoring and managing natural disasters
This paper considers the role of information technology in forecasting, monitoring and managing disasters in real-time (i.e., by analysis of data as soon as they are collected). First, the advantages and pitfalls of a technological approach
to natural hazards are discussed, then the general nature of real-time technology is described.
Relief and saprolites through time on the Baltic Shield
The analysis of the relationship between relief, saprolite, and cover rocks through time led to the conclusion that the most important factor for the present relief differentiation is the time of exposure of the basement surface during
the Phanerozoic. This has important applications for the evaluation of Phanerozoic crustal movements as well as implications for the assessment of glacial erosion. The approach is thought to be most valuable for comparative studies of shield geomorphology
China ; Cluster analysis ; Daily life ; Gansu ; Space time ; Time geography ; Urban area
by cluster analysis. The daily-life activity space in each day is examined based on temporal-spatial changes of activities using time-geography approach. - (KA)
The A. conducted a travel-diaries survey on Lanzhou citizens during June 1992. Questionnaires were distributed through street offices to 300 households mainly composed of working couples. The time-use data are used for grouping the samples
Communication ; Concept ; Information ; Space time ; Spatial interaction ; Technology ; Time geography
time geography and brought new impulses in approaches and methods necessary to capture, analyze and represent a variety of activities of individuals in the complexity of social and spatial interactions. - (EN)
The paper addresses the latest trends in time geography and outlines the challenges and problems facing this area of research. It examines how information and communication technologies have contributed to currently changing concepts of classical
Is sustainability science becoming more interdisciplinary over time ?
Environment ; Geographer's role ; Geographic information ; Inter-disciplinary approach ; Research ; Sciences ; Sustainable development
The article measures and maps the interdisciplinary nature of research in sustainability science and its developments over time period 1991–2011. It uses the integration index together with the visualisation method of science overlay maps
. The article thus analyzes the disciplinary structure of the sustainability science and its development over time, with an emphasis on the role of geography in its disciplinary composition. - (IKR)
Climatic interpretation of alpine snowline variations on millennial time scales
This paper reviews methods of climatic interpretation of glacier fluctuations on time scales of 103 to 104 years. Glacier dynamics are not considered; rather, the problem is approached from the perspective of pertubations in the equilibrium-line
altitude (ELA) or snowline of a glacier. The typical assumptions for paleoclimatic interpretations of snowline variations on millennial time scales are discussed. A minimum number of climatic parameters that need to be estimated in order to quantify
Chemical textures on quartz grains : an experimental approach using salts
This paper demonstrates that chemical surface textures can be produced on quartz grain surfaces by saturated salt solutions in a short period of time and may prove to be representative of chemical surface textures produced in a saturated saline
A geochronological approach to understanding the role of solar activity on Holocene glacier length variability in the Swiss Alps
The AA. present a radiocarbon data set of wood and peat samples. The radiocarbon dates obtained are not distributed randomly over the period of time sampled, but cluster in defined time windows. The samples document that 8 glaciers in the Central
Cartographic symbol ; Cartography ; Conflict ; Event ; Space time ; Temporality ; Time ; War
The article provides an analysis of the possibilities for the graphic presentation of time in animated cartographic works. Methods commonly used for the expression of time in cartographic animations are mentioned and their weakness indicated
: as a rule, these methods don’t reflect the temporo-spatial progression of events that a cartographic work strives to capture. The article proposes a general approach recommended for the design and creation of temporal legends for animated maps in order
to eliminate this flaw. This approach is then applied to a sample group of cartographic works that depict historical battles. - (EN)
The verification and significance of three approaches to longitudinal stresses in high-resolution models of glacier flow
With the purpose of improving the ice physics underpinning time-dependent glacier flowline models, 3 independent approaches for solving longitudinal stresses in glaciers are discussed and verified by application to Haut Glacier d'Arolla