Geomorphological observations and related natural hazards using merged remotely sensed data : a case study in the Corinthos area (NE Peloponnese, S. Greece)
The study area is a typical agricultural area with intense relief, the result of active tectonics and important human intervention. The AA. demonstrate the benefits from the synergism of SAR data (ERS-2) and optical data (SPOT2-XS) in order
to highlight the possible natural-hazard-prone areas. These data give different and complementary information since the radar signal depends mostly on topography, surface roughness and soil moisture, whereas the visible/infrared channels provide spectral
Geomorphological conservation and public policy in England : a geomorphological critique of English Nature's Natural Areas approach
This paper reviews the geomorphological content of the 120 Natural Area Profiles, eight regional summaries and the relevant pages of the English Nature web site. It concludes that wildlife conservation, which dominates the profiles, has fully
Local Area Teams, a more detailed approach to geomorphological description of the Natural Areas which recognizes landform evolution, landform character and sensititvity to change, and improved links between geomorphology and the land-use planning system.
A GIS-based method for flooded area calculation and damage evaluation
In this paper, a model for flooded area calculation and damage evaluation is presented. Flooding is divided into two types : source flood and non-source flood. The source-flood area calculation is based on seed spread algorithm. The flood damage
evaluation is calculated by overlaying the flooded area range with thematic maps and relating to other social and economic data. This model has been successfully used in the Zhejiang Province Comprehensive Water Management Information System developed
Towards a policy framework for post-apartheid housing investment in former homeland areas : evidence from the Free State
This article reflects on the role of former homeland areas in a possible spatial development framework in the Free State with regard to housing investment. Homeland and post-apartheid housing policies are assessed in the light of demographic trends
The application of zone-design methodology in the 2001 UK census
This paper reviews the automated zone-design procedures adopted for the creation of 2001 census output geography in the United Kingdom. A series of output area design scenarios are applied to microsimulation data, allowing the effects of the new
design constraints to be evaluated. The AA. identify the advantages of using an intra-area correlation measure for the maximization of social homogeneity within output areas.
The geometric, sedimentologic and hydrologic attributes of spring-dominated channels in volcanic areas
In volcanic areas of Idaho, Oregon and Montana, a number of perennial stream emerge from single springs or zones of springs. The AA. investigate the geomorphic setting, planform, and topography of the spring-dominated channels; the size and nature
Assimilation ; Chicago ; Foreigner ; Illinois ; International migration ; Nationality ; Settlement ; Social status ; Spatial distribution ; United States of America ; Urban area ; Urban immigration
are defined based on period of arrival in the US and by age. The spatial geography associated with each arrival cohort is constructed with respect to areas of relative concentration within the metropolitan area.
The Sahara is the world's largest source of aeolian desert dust, but precise information on specific sources of this material is poor. This paper uses daily data from the Total Ozone Mapping Spectrometer (TOMS) for 1999 to identify source areas
for major dust events and their trajectories of long-range transport. Two major sources areas are identified : the Bodélé depression and an area covering eastern Mauritania, western Mali and southern Algeria. Both of these major dust sources are primarily
The greatest lake period means that the lakes are in the stage of their maximum areas. As the paleolake shorelines are widely distributed in the lake basins on the Tibetan Plateau, the lake areas during the greatest lake period may be inferred
by the last highest lake shorelines. They are several even ten times larger than that at present. The occurence of maximum areas of lakes marked the very humid period on the Plateau and was also related to the stronger summer monsoon during that period.
Estimation of daily area-average rainfall in Central Florida using arithmetic averaging and kriging
Results are compared of using arithmetic averaging and kriging to estimate daily area-average rainfall during the summer 1991 Convection and Precipitation/Electrification Experiment (CaPE) in central Florida, where convective rainstorms often
Chemical concentrations in overland flow from different forested areas in a Mediterranean environment : burned forest at different fire intensity and unpaved road
Arid area ; Forest ; Forest fire ; Gerona ; Mediterranean area ; Overland flow ; Runoff ; Spain
Conical sandstone landforms cored with clastic pipes in Glen Canyon National Recreation Area, southeastern Utah
Arid area ; Differential erosion ; Sandstone ; United States of America ; Utah ; Weathering ; Wind erosion
Clusters of conical sandstone landforms, many with summit weathering pits, have developed on barren outcrops of the Jurassic Entrada Sandstone in Glen Canyon National Recreation Area. The conical landforms have developed on cylindrical bodies
Neogene strike-slip faulting and pluton emplacement in the Colline Metallifere region (Southern Tuscany, Italy) : the Gavorrano-Capanne Vecchie area
Combined field mapping, structural analysis and Neogene stratigraphy were used to define the tectonic evolution of the Gavorrano-Capanne Vecchie area, located in the Southern sector of the Colline Metallifere region (Tuscany). A particular aim
as the main brittle deformation event in the study area. - (NF)